Fermilab 50th Anniversary

Beautiful sunrise as I headed into work. Corner of Receiving and Batavia roads.

The mink that's no longer missing.

In this picture, Adam Anderson of the Particle Physics Division Astrophysics Dark Matter and Initiatives Group is setting up and testing readout electronics and detectors that will be deployed on the South Pole Telescope in November of this year.

The green heron is keeping a watchful eye on me.

Turtle on Main Ring Road near C-3.

Amana orange, Kellogg's breakfast, oxheart, to name a few.

Fermilab family enjoys the holiday.

Enjoying the bison

Enjoying the Showing out-of-town family around Fermilab

Thistle blossom with some insects.

Hawk watches over Eola Road near the control gate by Site 3

A couple of deer out for a stroll.

Mr. Froggy went to the Green Heron's place for breakfast and was the breakfast.

Dipole magnets in the MI60 high bay.

is beautiful

A bee harvests nectar.

A nifty little Mazda RX5 two-seater is parked near Wilson Hall, which is reflected in the hood.

Have a great Labor Day weekend!

Julie Vander Meulen enjoys the Technical Division annual picnic.

Ryan Campbell helps volunteers identify and sort seeds for planting on the prairie.

On right, Mike Roman of the Particle Physics Division Detector Development and Operations Department and Dylan Frizzell from Argonne National Laboratory work on measuring pixel sensor modules for ATLAS in the Lab C cleanroom at SiDet.

50th Anniversary Planning

At Playgroup, Anna Elementi decorates an owl with beans, lentils and rice during craft time. Playgroup meets every Wednesday in the Fermilab Village. Everyone is welcome.

Compass flowers are blooming en masse around the site right now, and the pollinators are out in force! This picture was taken on the Main Injector road between MI10 and MI20 using my phone.

View from the top of the Bubble Chamber

Praying mantis looks like it is all hopped up on Mountain Dew!

Batavia residents enjoy a quick game of hide and seek.

Foggy Fermilab sunrise, west entrance

John Najdzion (using the power washer) and Adrian Marquez, both of the Particle Physics Detector Development and Operations Department, work on making the Bubble Chamber, in the SiDet courtyard, shiny and bright by giving it a power-washing bath.

This comic was found on the whiteboard in the cafeteria. Fermilab folks can be very creative!

This is a view of the NuMI Target Hall taken from atop the workcell looking upstream. The shielding blocks over the tops of target and horns' respective "T-blocks" are open in preparation for survey and alignment and electrical work. All of this work is part of the 2017 summer accelerator shutdown period for maintenance and development. Several technicians, engineers and physicists have completed jobs in this enclosure, which is over 150 feet underground. I took this photo with my phone toward the end of the day.

Ryan Frantzen, left, and Martin Valenzuela remove some branches from the trees outside Ramsey Auditorium in preparation for the Open House next month.

What do you see between the trees? The high-rise of course. You can see the high-rise from many areas on site.

From Jim's garden at Fermilab

Adam Lister of Lancaster University in the UK sits shift for MINERvA in ROC West on a quiet Saturday afternoon.

Lily ponds near DZero

Olivia Lahs-Bour stands next to the Fermilab logo created by Angela Gonzales, her mother.

The beans at the photographer's garden plot in the Fermilab Garden Club are ready to pick.

Is it an outhouse or is it the burned vacuum circuit breaker cabinet at MI-60?

Daily sunrise pic

These blue cornflowers adorn the roadsides and fence rows every summer and early fall.

Hard rock concrete cutters work at removing concrete and steel pillars that once held up the Bubble Chamber in the Lab B pit at SiDet.

View from Wilson Hall

Can't get enough of this sculpture.

SBN-ND Building

Walking toward IARC...

daily pic

Question: Category: Jobs for $50..."while at work I hang out and keep all my tools within arms reach." Answer: What is a Wilson Hall window washer?

Take 5 for safety

Mr. Froggy sits in the early sunlight waiting for breakfast to fly by.

From left: Renan Silva Soares, undergraduate from the Universidade Federal Do ABC, Brazil, and Dante Totani, Ph.D. student from University of L'Aquila, are testing a SIPM, or silicon photomultiplier, a part of light detector for the DUNE experiment.

I was walking to the car when I noticed this bee on a flower outside of MI65. Took the picture with my phone.

Wilson Hall is dwarfed by giant plant-life.

Great day to do windows!

Take a little walk down the lovely Margaret Pearson Memorial Trail, also known as the Fermilab Interpretive Trail. You'll love it!

Osprey searches for next catch on Ring Road.

Wilson Hall eclipse over window washers.

Some of the Technical Division's brightest stars gather to watch the solar eclipse!

A group of Fermilab employees and users watches the eclipse from the courtyard outside the cafeteria. The sun, partially covered by the moon, is visible also on Wilson Hall windows.

The ICARUS trip!

21-inch smallmouth bass

Eclipse through the clouds behind Wilson Hall.

Kevin Fahey, Jack Fowler, Jim Niehoff, David Montanari, Chris Mossey, and Jolie Macier (left to right), look upward to the eclipse during a break at an LBNF design review at the Sanford Underground Research Facility in Lead, South Dakota.

Intermittent image due to cloud cover, but when it was mostly clear we could watch the clouds pass across out line of sight to the sun. The video is awesome I took with my phone!

A cloudy sky allowed to see the slice of the sun on Wilson Hall's partially reflecting windows.

Monday's solar eclipse, reflected through the two lenses of a pair of protective sunglasses.

People watch the solar eclipse in front of Wilson Hall.

Waiting for the total eclipse on a mostly cloudy day.

Frog in pond on Ring Road.

Little do the citizens of Earth know that in less than 48 hours, the moon will be blocking, for a moment, the source of their heat and light.

Sunrise Eola Road.

Artwork by Angela Gonzales

David Butler shows off the walk-in oven at Lab 3 in the Village.

Phil Crabtree and John Anderson III show off the enclosure keys they needed that day for vacuum work they were doing.

In response to my picture with Phil and John with all their enclosure keys, John took this photo and said: "We decided to get some blue and purple keys."

A bumblebee visits flowers behind Aspen East.

A fun crew Friday Night for the party, "In Front of the Barn"

The Particle Physics Division have their picnic today at Kuhn Barn. On the right, Patricia McBride, head of the division, welcomes folks to the picnic. Dee Hahn, PPD/DDOD; and Callie Surber, PPD Office, hand out raffle tickets.

SUSY Swan, new Fermilab Theory Department mascot, watches over the Director's Coffee Break.

Aleksey Akimov carefully installs a 3.9-gigahertz superconducting radio-frequency cavity into the Horizontal Test Stand at MDB.

Evening at the pasture

Beautiful view from east Booster parking lot.

Tyler Drendel works on Muon Campus instrumentation devices, including PWC proportional wire chambers and ion chambers at NWA.

Getting ready for the eclipse on Monday. Using a transit to project the image of the sun onto a pad of paper. Basic concept works ... now it's time for some refinements to the apparatus before the big day!

Wilson Hall and the new lily pads

Wildflowers

Life in the village.

A beautiful start to the day as the sun comes up over the fields by Wilson Street.

Geese on the tennis courts after the rain

The LHC Physics Center guest and visitors from Texas Tech University, along with Zotlan Gecse and Maral Alyari from Fermilab, work in the Lab C cleanroom at SiDet. They are working on the CMS testing Co2 cooling performance of the cassette for the CMS high-granularity calorimeter. From left: Samila Muthumuni, TTU; Tielige Mengke, TTU; Zoltan Gecse, Fermilab CMS; Kamal Lamichhane, TTU; Maral Alyari, Fermilab CMS.

This willow tree at Site 58 has the prettiest twist to it.

The Fermilab gym recently acquired some new equipment, including this squat rack. It's the best!

Morning walk in foggy sunrise

Armando Barboza polishes vacuum flanges on PIP-II 325-MHz superconducting half-wave resonators at Lab 2.

Matt Crawford of Fermilab, Barry Glicklich. In the background, the gamer on the far right is Bill Tannenbau. On the far left is Howard Sanders.

Dana Smith of the carpenter shop fixes up a small conference room at Site 38 OPS.

Alignment of the LCLS-II cavity string to vessel

Rise and shine!

Bob Barger performs instrument calibration at PAB.

Luna moth on the ground just outside of AZero. Credit to Matt Alverez for pointing it out and not accidentally stepping on it!

Monday morning

Cloud reflections

Bison eat in the evening while the sun is peeking through the clouds.

Baby swallows wait for the parents to return at AP0.

Beetle-like creatures swarm on a daisy-like weed in the wide median on Pine Street. Wilson Hall is in the background.

Fermilab Garden

I've always enjoyed that Fermilab continues in its Illinois heritage by allowing the use of part of its open space by local farmers to grow and harvest corn and beans.

Guess where.

Welcome to the world Baby #11!

Main Ring Pond near C-0

Fermilab Photo Club celebrates its 50th anniversary today at the Water Street Studios exhibit opening. The studios feature photos that have been taken at Fermilab by many of the Photography Club members.

The opening reception for the 50th Anniversary Fermilab Photo Club Show at Water Street Studios in Batavia.

Early morning before the moon had set.

Wasp of Fermilab Fire Department's glass firetruck.

Patience abounds while waiting for wildlife.

Sump in pbar

The yellows, purples, pinks and whites of August.

Ryan Kos, vet tech intern, works on the Linac Marx generator.

ICARUS has arrived!

The face only a mother could love.

Momma bird waits for me to stop taking pictures of her babies so she can feed them. SiDet residents.

A beautiful sunrise

Ring ride at lunch time. I love the contrast in colors between the sky, clouds and greenery.

Dew on ornamental grass sparkles in the morning sunlight.

The path was busy on this beautiful day!

Looking northwest

Dr. Don Lincoln, Fermilab physicist, concludes the Undergraduate Summer Lecture Series on "A Theory of Everything: Are We There Yet?"

Naked Ladies aka surprise lilies, Lycoris squamigera planted in front of The Outback at DZero

Why dragon fly when you can dragon sit on a bench?

One of hundreds of bees on the Russian sage along the Outback at DZero.

Spotted in Wilson Hall cafeteria, east side

The morning sun on the evening moon flower at The Outback

The full moon is visible between the branches of the willow tree next to Batavia Road.

So many cool looking things at SiDet. I asked Javier Tiffenberg of the Particle Physics Division Astrophysics Department what this is. He explained to me that this is an engineering replica of the Dark Energy Camera focal plane. It was used during the construction of the DECam instrument that is installed in Chile in the telescope that is being used for the Dark Energy Survey. #MobileMonday

Flowers outside of Wilson Hall on the east side.

A parent osprey sits in a tree while a juvenile flies around asking for food.

Heron on Outer Ring Road

Zucchini plants in the Fermilab Garden

Today participants of the past week DPF meetings and Fermilab employees tour different labs at SiDet, ending with some sorbet and a group picture in front of the Bubble Chamber.

Last day of Phriendly Physics Teacher Workshop.

Phriendly Physics Workshop toured the IB3 facility. This is part of the magnet assembly process.

One of today's DPF speakers in 1 West was Enhao Song from the University of Virginia. He spoke on "A Neural Network Trigger for Magnetic Monopoles with the NOvA Far Detector."

Collecting seeds for prairie restoration with Fermilab Natural Areas volunteers.

Walking the Main Ring at lunchtime, we saw these lilies in a Main Ring cooling pond.

Doug Berry of the University of Illinois at Chicago gives a talk on behalf of the CMS collaboration.

Butterfly hanging around Playgroup at Kuhn Barn

... flock together.

Tony Tong, from Harvard University, enjoys todays physics talks at the DPF 2017 meetings.

I was on the back of a golf cart when I took this picture when I was inspecting the F Sector conversion from ion pumps to turbo pumps shutdown work in the Tevatron tunnel.

The 2017 Division of Particles and Fields meeting is held this year at Fermilab beginning July 31 through August 4, 2017. Here Keisuke Yoshihara gives a 10-minute talk on particle physics at today's start of the DPF meetings.

Blooming American lotus and a glimpse of Wilson Hall

Flowers of the compass plants along the path between IARC and Wilson Hall on a beautiful Sunday evening in July.

A Saturday morning gardening, organic and mostly heirloom.

The one in the front is a cryogenic magnet, and the two behind are helium refrigerators. They caught my eye when I walked into Lab B.

Early morning light on the Ramsey Auditorium and Wilson Hall

Looking like a leaf in the middle of Blackhawk Boulevard in the morning is dangerous business! This one was helped reaching closer to Dusaf Pond.

ICARUS is now at Fermilab!

Feathers and egg

This caterpillar decided to cross Main Ring Road during lunch. We carried him to safety.

Jim Annis of the Scientific Computing Division points out something interesting in his talk on the LIGO experiment and related cosmological ideas. The audience is undergraduate interns at Fermilab. The three students in the front, just behind Annis, are Andrea Bryant, Kevin Ingles and Leonardo Rodriguez.

A group of students take some time off from their tour to relax in front of Wilson Hall.

ICARUS heads toward the Neutrino Campus.

Just listen...

At lunch I sat and admired this beautiful barn.

Robert Barger, on left, of the Neutrino Division Technical Support Department and Greg Tatkowski of the Particle Physics Mechanical Department discuss hooking up a temporary Dewar at SiDet.

Underground Utilities

Fermilab intern Marika McGee shows off her new, Fermilab-themed fingernails.

This amphibian visitor was found in the ladies' washroom at SiDet. Cute, isn't it!

Martha Michels, Dave Esterquest and Chuck Kuhn discuss 50th-anniversary plans with first responders.

Trees and blackbirds in golden light

Wilson Hall At Dusk

Michael McGee is showing off his operator's t-shirt during the Operator's Reunion Party. Marty Murphy and Nick Gurly designed and drew the design on the back of the shirt.

Multiple generations of operators gathered at Kuhn barn for a reunion pig roast on Saturday, July 22. Over 100 current and former operators attended, along with their respective families. The unique nature of the accelerator operators' job — the long hours, rotating shift work, considerable training regimen, working weekends and holidays, and being with the same crew for months or years — creates a camaraderie rare in most other fields. This was evident by the great distances traveled for some who attended. Former ops came from Indiana, Wisconsin, Iowa, Minnesota, Kansas, Virginia, Georgia, Arizona, Utah, New Mexico, Oregon, California and Illinois. Our motto is "Once an Operator, Always an Operator." A great time was had by all.

Blooming flower near ring road

Anne Mary Teichert talking to visitors during the Art Gallery tour of "A Lasting Mark: Angela Gonzales at Fermilab."

Cell phone picture of some wildflowers on the side of C-D Road.

Tree branch on a power line off Giese Road.

Approaching severe thunderstorm from the northwest at Wilson Hall

Bo Jaytilaka is a speaker for the Summer Undergraduate Lecture Series. He speaks on scientific computing at Fermilab.

The morning rains left puddles on the water lilies in the Wilson Hall reflecting pond.

A pair of green herons perch near the Main Ring.

Checking out the morning view atop Acqua Alle Funi.

Watching Anne Heavey and Andrew Dalesandro give the Light and Color school presentation in St. Charles.

The LArIAT collaboration

Summer students Arielle Pfeil and Marlene Ortega, left of the picture, and visitor Katie Chennault of Olivet Nazarene University enjoy a lovely summer day outside in the SiDet courtyard.

Linda Valerio gives a talk at the Summer Lecture Series on the engineering of accelerators and does an excellent job.

Osprey chicks ready to fledge

Muon Campus - M5 beamline elements staged for installation. These magnets were originally part of the Antiproton Source.

A damselfly stands on a rock adjacent to the Wilson Hall parking lot.

Sue Quarto and Maredith Stoffel and growing some wonderful produce to share with our coworkers in a few weeks!

Exploring a passageway in the the main ring tunnel near DZero. The Fermilab scientists and engineers in this group are training to become DZero tour guides.

The upcoming Linac Marx modulator has 54 active cells, each of which needs three lengths of fiber optic cable to transmit the charge, fire and status signals. Cutting the cables is easy; keeping each of the 54 sets organized is the tough part.

This thistle is pretty, even if it is a weed. #Mobile Monday

Pond lilies - Outer Ring Road

The old Bubble Chamber on display in the court yard by Lab B

Representing Fermilab at the Windmill City Festival in Batavia.

Stuffing name badges for the upcoming DPF Conference at Fermilab from July 31-Aug. 4.

The wildflowers near the Lederman Education Center.

Stan Johnson takes on a controlled blaze during fire extinguisher training, hosted by the Fermilab Fire Department.

Typical assortment of keys needed in a day in the life of an RF Group technician during shutdown.

Gary Smith prepares brats for a summer cookout at the BEG building.

Facing the camera, Ashton Cattenhead of Facilities Engineering Services Section and Joseph McDermott of the Fermilab Natural Areas weed the sustainable plants in front of the IARC building.

The old modulator at Station 2 of the linac is being dismantled so it can be replaced by a new Marx Modulator.

Dr. Mark Pankuch Northwestern Medicine Chicago Proton Center in Warrenville discusses how to engage students in the ideas of Medical Physics with Teacher Research Associate TRAC Sundaram Thirukkurungundi. Pankuch was the lecturer today in the Undergraduate Summer Lecture Series, speaking on the topic "Cancer treatment with accelerators."

From left: Arielle Pfeil, Cory Cotter and Andrea Bryant, three of this year's Fermilab summer students, stop at my desk for a snack.

Kate Sienkiewicz examines the operation of a 3-D printer while touring the Polsky Center for Entrepreneurship and Innovation at the University of Chicago. Meredith Ament, left, looks on.

That little insect never had a chance.

Storm fronts approach the Lederman Science Education Center, with Broken Symmetry in the background.

Looking up Wilson Hall on a sunny morning.

The same old service building from back in January. The green grass has grown and the air is warm, but the sweeping marks on the wall still remain.

A green heron and a great blue heron wait for breakfast to come by.

Xiao Luo, David Caratelli and Kurt Riesselmann sit in the Remote Operations Center West in Wilson Hall and participate via video conference in Neutrino Day 2017 at Sanford Lab in South Dakota. They are explaining the particle tracks that Fermilab's MicroBooNE detector records using the same liquid-argon technology that scientists will use for the 70,000-ton particle detectors of the Deep Underground Neutrino Experiment at Sanford Lab.

Irma Campos and Jose De La O conduct science demonstrations for children at the Fermilab booth at the Railroad Days Festival in West Chicago.

The continuous electrical ramp in the Main Injector orange falls to zero as the 2017 summer shutdown begins. This will be a period of maintenance and upgrades for the accelerator complex.

A beautiful summer sky is reflected in a DZero building window.

Morning fog

Linac power

I like to park by Kidney Pond because it's so picturesque. Yesterday as I got ready to leave, I came upon this heron, and I interrupted this turtle's picnic, apparently. I tried to get a picture of the two together but the turtle was too fast. Yes, really.

Geese, water, flags and Wilson Hall in July

Egrets and ducks on the water close to Fermilab's east gate

Control Room door at CMTF

Egrets and other waterfowl enjoy the clearing made in the cattails at A.E. Sea.

The inside of ROC East, highlighting the CMS artwork on the south wall by Xavier Cortada and Pete Markowitz. The meaning of this artwork can be found at http://uscms.org/roc/display_files/Xavier-HiggsSearch-Credit.html

Two that didn't make it.

Egrets, herons and cranes gather in a new mowed down, marshy area at Fermilab.

Linac accelerator

This is a composite of various firework photos captured from atop Wilson Hall.

Single shot of Batavia fireworks from 13th floor Wilson Hall

Fireworks go off in the distance, with the Feynman Computing Center in the foreground.

The Teachers Research Associates participants for 2017: Jeffrey Breiten, Amanda Whaley, Subdaram Thirukkurungundi, Petar Kesic, Joanne Bader, and Emmanuel Aldana. This program is coordinated by Harry Cheung.

Not for human consumption!

Having fun learning about perspective with the IARC building.

Two coyote siblings having fun.

Morning in July

Heron in the Main Ring pond

Wildflowers bloom outside of the Transfer Gallery, near Ramsey Auditorium.

Scaffolding stairs down to the future detector.

Among the offerings from the hot-beverage vending machine in the Wilson Hall atrium is CHI tea. I have to believe it's a pun.

Rainbow from IARC in the evening

The projection screen inside the ROC East was removed this morning, making the view a lot nicer.

One of the many reasons working at Fermilab is amazing!

Marco Bonati works in the Lab A cleanroom with bits and pieces for the DESI detector testing.

Not easy to stay dry on this rainy day.

Pat Riehecky explains yum repositories.

Today's Summer Lecture Series speaker, Marc Weinberg, right, engages in a postlecture discussion of the Higgs boson with three summer interns at Fermilab. The interns are Marlene Ortega, Katie Chennault and Bernadette Haig.

Meet Callie Surber! Callie has been at Fermilab since May 2017 and works with the Particle Physics Administrative Support Group in the Particle Physics Division office.

Erica Snider, Gianluca Petrillo, Hans Wenzel, Jason Stock

CMS pixels prototype FCP 130 ASIC has initial testing performed by Lou DalMonte of the Particle Physics Division Electrical Engineering Department in FCP 130 test lab, Wilson Hall, 14th floor.

This heron is a little camera shy.

John E. Anderson III helped conduct a test on a 12-inch bellows installed in the Tevatron to see if the bellows can be reused elsewhere.

Wilson Hall

It's like Bob Ross painted the sky above Wilson Hall - so many happy little clouds!

Marc Paterno of the Computing Division still working hard at the end of a long day.

The clematis is the BEG south courtyard is in full and glorious bloom.

Maral Alyari of the Particle Physics Division Compact Muon Solenoid Department and Petar Kesic with the Summer TRAC Teacher program discuss the “Big Pink Foam” located in the Lab C cleanroom, which is being used for testing the HGCal cassette tubings for CMS phase 2 upgrade. #MobileMonday

Cherry picking of data: Bad. Cherry picking of, well, cherries: Delicious! Elliott McCrory and the photographer have had a bumper crop of cherries at the Fermilab garden this year.

Bird goes airborne from the back of one of the Fermilab bison.

Fermilab attracts many visitors, especially when the weather is beautiful.

Jose Sepulveda contemplates the age of this rock.

Anne Mary Teichert talks about Angela Gonzales'"Lasting Mark" at Fermilab.

In this picture Bert Gonzalez is performing an inspection of the first 2S thermal mockup he assembled and mounted into a cooling frame for the CMS upgrade.

Inside view of the colorful Lab A dome.

John Anderson reminds the folks in the Accelerator Division about our common-sense safety procedures in preparation for the coming shutdown period.

Taking a walk on Road B at lunchtime.

Bert Gonzalez from the Particle Physics Division Detector Development and Operation Department and R&D Assembly Department works in the Lab D cleanroom at SiDet. He is assembling a precision silicon plane. This is work for others.

It looks like those thick dark clouds will touch the Bubble Chamber.

Erica Snider standing, workshop attendees

A cloudy, Midwestern sky over the bison field.

Marlene Ortega is a Summer student working for Daniel Bowring. She is working at SiDet in Lab B doing some testing on different materials.

A dickcissel sitting on a branch waiting for his true love to show up.

Feeding swallows

The art work of Angela Gonzales

The 2017 Fermilab Fishing Derby!

Clouds over Wilson Hall

Looking down from the 15th floor on Saturday, June 17, 2017, all that is left from the celebration is the DOTS.

A redwing blackbird eats seeds from roadside grasses.

Lori Haseltine from the Workforce Development and Resources Section, Education Office, assists Anatoly Ronzhin in purchasing some Fermilab T-shirts for family members.

Chalk dust from old equations buffs a Fermilab chalkboard like a pale rouge.

Debbie takes a short break.

Ice cream in the atrium for the 50th anniversary employee celebration.

Zoltan waits patiently for the Fermilab photo to be taken.

Jamie Santucci helps operate the dunk tank event while a dunker gets ready to pitch.

Talent abounds during the afterparty.

When the party is over but you're not ready to go home yet...

People smile and wave their hands as they are photographed by Reidar Hahn, who is at the top of the high-rise. Excitement all around.

As the excitement builds, people get ready for Reidar to take the Fermilab's 50th birthday group picture.

People in the horseshoe wait for the 50th anniversary group picture.

People in the horseshoe waiting for the 50th anniversary group picture.

People in the horseshoe waiting for the 50th anniversary group picture.

Anne Heavey winds up for the dunk!

The unfolding of a dunking at the 50th anniversary employee celebration.

Terry Hart contemplates perhaps how he might complete a perfect game.

A large fraction of Fermilab's employees gather in front of Wilson Hall for a group shot. The group that organized this photograph was Harry Ferguson, Lauren Biron, Kimberly Pearce, Kathrine Cipriano, Robert J. O'Sullivan, Kelly Dombrowski, Luz Jaquez, Marilyn Franck and Rosette A Mace.

Delicious ice cream toppings were served on the ever popular round table in the cafeteria.

Visitor-scientist Teppei Katori enjoys his bowl of ice cream.

Taking selfies while waiting for group picture!

Employees line up to get their T-shirts for the 50th anniversary photo.

A beautiful sunset caps an enjoyable day celebrating Fermilab's 50th anniversary.

Stephany Unruh dares the next person in line to dunk her.

Happy 50th birthday Fermilab!!

From left: Stacey Lindeman and Mari Mendez chill out during the June 15 afterparty.

Spentz gets dunked, and Heath is up next!

The Black, Red, White and Blue anniversary soccer tournament teams are friendly rivals.

The Black Team emerged victorious from the anniversary tournament. Look at those cool t-shirts!

It's Nur Nuruzzaman versus Sergey Los and Vladimir Shiltsev (background).

A bison overlooks a happy trio.

Dave and Julie Vander Meulen have fun at the selfie booth.

Leah screams with excitement as people get in their places for the Fermilab 50th birthday group shot.

Sergey Los, left, and Vladimir Shiltsev high-five each other. They've just won a badminton battle.

Karl Williams has a great time at the ice cream social in the atrium.

Dixon enjoys a beverage at the after-party in the Fermilab Village for Fermilab's 50th.

Roger and Marilyn enjoy looking at the artwork in the Fermilab Art Gallery during the Fermilab 50th celebration.

Rob Roser gets ready for the next pitch.

Party-goers perform a circle dance on the lawn.

A giddy Rick Tesarek waits in the cool atrium before going out into the hot weather for the Fermilab group photo.

A bean-bag-toss player collects the bags for the next round.

Jose De la O reminds Mark Bollinger of his participation in the dunk tank.

The colorful sign reminds us that today is a party day!

Reidar Hahn is up on the roof, prepping to take the 50th anniversary picture of the gathered employees.

Reidar invites all to come be part of the Fermilab 50th birthday celebration picture.

Looks like Nigel is trying to hurry Jose along ... andale pues - hurry up Jose!

Ray says hey!!

Reidar Hahn and Lauren Biron excitedly prepare for the festivities!

Piggyback rides at the 50th anniversary employee celebration.

Director Nigel Lockyer takes a picture of the crowd.

Mark Bollinger's excitement gets the better of him as he photobombs the pic taken by lab Director Nigel Lockyer.

Felix Yu knows that, while battle each other on the court, we wish each other peace off the court.

Paul Gentry recently retired from the lab, but he couldn't miss the party.

You can never have enough Fermilab t-shirts.

Ming-Jen Yang of the Accelerator Division's Main Injector Department enjoys a moment at the Fermilab 50th birthday party in the atrium.

I take a picture of Mark and Mark takes a picture of me. Happy 50th Fermilab!

Anadi and Marco of the CMS Department relax for a bit and enjoy the festivities.

John Hatfield puts more hot dogs on the grill for the Fermilab 50th after-party in the Village.

Time for the Fermilab photo. Look up everyone!

Anne Heavey looks though a solar telescope at the sun. This device was provided by Greg Cisko for everyone to see during the Fermilab 50th birthday party. It was set up south of Ramsey Auditorium.

Daughter sees something to the right, mother to the left.

The smiles say it all: Lisa and Kurt Riesselmann and Valerie Higgins, in the background enjoy the afterparty.

Linda Valerio and her kids enjoy the warm evening sun.

Lidija Kokoska and Charley Hess smile for the camera.

There ought to be more dancing in the world, as there was on June 15. In the foreground, Nicola McConkey partners with Doug Jensen in a folk dance. In the background are Elizabeth Keppel and Vijay Iyer.

Here's the individual who organized the June 15 shindigs and shebangs: Lauren Biron.

Lauren uses a megaphone to direct the people in the Fermilab blue t-shirts to stand in on the dots in the center ... it was no easy task ... HA.

Sergey Koshelev and Alexey Kochemirovskiy loved showing the photographer how much fun they are having celebrating Fermilab's 50th birthday!

Fermilab fellowship and friendship forever.

Katie Yurkewicz takes a cell-phone picture of Kent Collins, Randy Ortgiesen, Joe Pygott and Karen Kosky at the Fermilab 50th birthday party in Wilson Hall.

Jose welcomes you to the Fermilab festivities.

John Myer, general counsel, is the first dunkee of the evening.

Cooling off after the Fermilab photo in the atrium along with hundreds of Fermilab folks.

Jimmy Mac jams out.

Jesus Orduna holds is happy son tight.

Jim Ranson seems to flick the bean bag away.

It's all the rage.

This Fermilab firefighter waits to put his fire out with the delicious ice cream provided after the photo.

Ice cream, good for the soul.

50th anniversary ice cream social

This photograph was taken on the first floor of Wilson Hall when the ice cream social was in full swing.

This is a shot of Nick Gurley getting ready for a shot.

Horst says hello Fermilab, and happy birthday!

Dan Hooper's lecture in the Undergraduate Lecture Series was filled with folks ready to run out to join the big group photo in front of Wilson Hall. Notice all the "Fermilab 50" t-shirts.

Sylvia Gonzalez snaps a picture of Reidar looking down from the very top of the Wilson Hall building with her cell phone.

How much fun is it to play badminton outside? Jenny Teng and Nur Nuruzzaman know the joy.

Hema Ramamoorthi enjoys a cool dip in the water on Fermilab's 50th birthday.

Patrick Fox's son enjoys the view from atop his dad's shoulders.

Harvey can't get enough of those toppings.

The Drug Sniffing Dogs playing at the 50th anniversary celebration!

Clearly the Telecom Department is having too much fun!

Hanging with the firemen!

Patrick Fox is ready to go snorkeling in the tank.

Marco Mambelli was among the participants in the go-as-slow-as-you-can bike race held during the June 15 afterparty — a harder-than-it-sounds competition from a more-brilliant-than-mine mind.

Mary Convery relishes being a dunkee.

Getting lined up for the 50th photo.

Hello Georgia!

Taking in the party.

Friends enjoy refreshments at the Frontier Pub for during the afterparty. From left: Martina Martinello, Mattia Checchin, Kavin Ammigan, Cory Crowley, Paolo Berrutti, Giuseppe Gallo

From left: Clécio De Bom from Centro Brasileiro Des Pesquisas Fisicas; Sheila Amaral, postdoc; Gabriela Lima, who works in the Fermilab daycare; Guilherme Lima, a Fermilab scientist and husband to Gabriela; Louise Lima is Gabriela and Guilherme's daughter; and Márcia Lima is Guilherme's sister, who is visiting. All are having a wonderful time celebrating Fermilab's 50th birthday.

Sunshine, food, good company, grass — all the elements of an enjoyable picnic.

Fire Department Logo and Patch

Front row: Moe, Larry and Curly. Back row: Carrie Farver, Margaret LeKander and Anita Menz-Cwiklik.

Other folks enjoy playing Fermilab trivia in the Curia II conference room.

Folks flock for Fermilab T's.

Fermilab is 50!

The people get a good laugh when they hear Jose De la O remind Mark Bollinger of his dunk tank turn.

Happy 50th birthday Fermilab, and may you have many more!

Many hands prepare to make this 50th birthday celebration one of the best days ever!

The Summer Internships in Science and Technology, SIST, interns enjoy their ice cream at the Fermilab 50th birthday party.

Rich Andrews of the Accelerator Division has a pleasant conversation in the atrium.

A fancy floral fan keeps St. Charles resident and NIU student Ashli Fain stylishly cool.

The eye in the sky belongs to Reidar Hahn.

Just enjoying the ice cream provided after the group photo.

Hm. I'll sign up to throw a ball 4:40, 5:10 and 6:20 p.m.

"I'm not duowning!" says Duane Newhart, who couldn't appear happier to be the final dunkee of the evening.

Duane Newhart tries to fend off would-be dunkers at the 50th anniversary employee celebration.

Drug Sniffing Dogs is the evening's headliner.

It's nice to talk outside over drinks. From left: Leonard Ristori, Carlo Santini, Giorgio Ambrosio

Everyone's sporting cool specs, including Karie Badgley, left, and Leah Poffenberger.

Kirstyn Carlson, a summer co-op student with the Particle Physics Division Mechanical Department, is soldering RTDs on a thermal mockup of CMS 2S module. She is in the Lab C cleanroom at SiDet.

From left: Theorists Kiel Howe, Zhen Liu, Gordan Krnjaic and Patrick Fox raise their cups to the esteemed Chris Quigg, who, a good sport himself, wishes them no ill will though a dunking is imminent.

The cheering section for Nur Nuruzzaman witness a fantastic throw.

A balloon escaped during the after party.

Birthday festivities begin.

Josh Norris' bean bag is coming at you!

John Myer is at bat.

Kurt Krempetz is retired from Fermilab, but he came out for the barnstormer demo.

The Fermilab 50th celebration included some games. Here are some folks playing the bag toss game.

Jim Jenkins, 2017 artist-in-residence, gives a presentation to employees.

Anne Mary Teichert and Valerie Higgins give art gallery talk "A Lasting Mark" to employees.

Mercedes Scott, Andrew Federowicz, Gary Van Zandbergen and Rhonda Merchut of FESS Engineering.

The Fermilab 50th birthday group photo has been taken. Time to break it up.

A gathering of a small group of friends is just as cheering as that of a crowd of hundreds. From left: Franco di Ciocchis, Donato Passarelli, Silvia Zorzetti

People look at the Angela Gonzales artwork.

... horseshoes! So let's play!

The calm before the storm of the 50th anniversary employee celebration.

Hosted by MINERvA's own Minerba Betancourt! Featuring Steve Hahn and Debbie Harris!

Andrew Lathrop installed an inexpensive camera in a smaller nitrogen dewar to test the performance of a pump located inside the liquid-nitrogen Dewar. He can then monitor it on his laptop. Cool stuff!

Fermilab pool on a stormy afternoon

View from the parking lot at the end of the day ...

The blue of Fermilab's 50th Birthday banners complements the dark, natural brown of the building's historic walnut ceiling.

The Particle Physics Financial Group handle the everyday number crunching for the division and are very good at it. From left: Dale Knapp for Mu2e, Kimberly Veugeler for PPDO, Colleen Yoshikawa, Head, Jenny Teng for CMS, and Kate Rogers for PPD & Kronos. Not pictured are Corrine Vendetta, deputy head, and Kyoko Kunori for Japan.

Every year, the MINERvA neutrino experiment holds a three-day workshop for new students joining the experiment to learn about our physics goals, software framework and analysis techniques! We have a great group this year with lectures for both new and experienced students!

Summer interns attend the lecture by Harrison Prosper of Florida State in Ramsey Auditorium. This lecture was titled "Introduction to particle physics." From left: Keven Ewart, Makayla Trask, Elizabeth Ewart, Celeste Keith, Olivia Barron.

Good morning Maria Martinez!

Ms. Chelydra serpentina digs a hole in preparation for egg laying.

A beautiful warm day looking out from Wilson Hall.

There are spools of colorful wire for general electrical use in Lab D at SiDet. #MobileMonday

Turtle near Wilson Hall

What is missing from this image?

The sun sets over a pasture.

Spring planting

Mr. Freeze Jerry Zimmerman brandishes a zip-closure bag of liquid nitrogen on the stage of Ramsey Auditorium at DASTOW 2017.

Drug Sniffing Dogs roll out some '60s music!

A storm is headed for the muon campus.

Engineering Physicist Jerry Zimmerman from the Particle Physics Division, Detector Development & Operations Deptartment, AKA, Mr. Freeze, entertains and WOWs the audience with a cryogenic show at the DASTOW, or Daughters and Sons to Work Day.

Derek "DJ" Piec Jr., son of Derek Piec of the Fermialb Fire Department, participates in DASTOW activities.

The Mechanical Support Department set up a 3-D printer for DASTOW to print small trinkets for the children visiting the laboratory that day.

I've driven in the Wilson Road entrance every morning for most of my life, and this view never gets old, especially on a beautiful day like this.

Mandy Rominsky gives a talk titled "The physics of particle detectors" in Curia II. The audience is the summer interns at Fermilab.

Postdoc Si Xie from Caltech holds the LGAD silicon sensor that is used for the CMS precision timing detector, while Jing Zhang, a visitor from Caltech, looks over the photo she took.

The Proton Pagoda reflects a beautiful summer sky.

On my way to a meeting, I saw these geese marching on Booster Road between the Main Ring and the new Muon Campus.

Sponsored by the Department of Energy Office of Science, CCI provides 10-week summer technical training experiences for community college students. Students work with scientists or engineers on technologies or instrumentation projects related to Fermilab's research program. The six CCI participants for 2017 are Olivia Barron, Kevin Bardan, Will Brickner, David Shi, Derek Wenzel and Aly Kaplan.

Archivist Valerie Higgins stands next to the Enrico Fermi exhibit in Wilson Hall.

These two retired gentlemen, Robert Trendler, left, and Merle Haldeman, both formerly of the Particle Physics Division, enjoy the 50th Anniversary Symposium held today in the Ramsey Auditorium.

Twisted - Old - full of holes - but still standing ... Hey that sounds like me!

These are two of the pumps for the MS2 low-conductivity water system.

The initial session of the annual Undergraduate Lecture Series featured Associate Director Joe Lykken with a talk titled "Introduction to Fermilab." At the end of the talk, Lykken sat down at the edge of the stage of Ramsey Auditorium and talked with the students.

Designer Jim Schellpfeffer of the Particle Physics Division Detector Development and Operations Department works with the new CNC router, or computer numerical control router, that's located in the Meson Assembly building. This monster machine is used for making parts for many Fermilab experiments.

What a wonderful evening to honor the memory of Angela Gonzales, her artwork and the lasting mark she left at Fermilab.

MINERvA students' synchronized dress code for presentations. It was not planned. From left: Alex Ramirez, Maya Wospakrik and Roger Galindo. Christian Nguyen is photobombing.

Cory Rude (left) from the University of Iowa and Orgho Neogi, who attends Cornell College but works at the University of Iowa, are undergrads working at Fermilab with the DUNE Experiment.

Ghost of Wilson Hall on 13th floor

Shiny new electronics control a fast laser pulse used to punch a hole in the stream of Linac beam.

Spending Saturday night with the moon and Jupiter. Pictured: Jose Sepulveda, moon and Jupiter.

Wayne Shaddix catches a nice-sized large mouth bass in Swan Lake.

Denton Morris and Kyle Hazelwood test out Swan Lake in preparation for the Fishing Derby on Saturday, June 17.

The intense look of this beautiful bird

Fermilab docents keep cool in the shade while waiting for their students.

This nice looking Fermilab lpgo was constructed of scrap stainless steel and was designed by Cary Kendziora of the Particle Physics Division's Mechanical Department, built by Bill Miner of the Neutrino Division's Technical Support Department, and welded together by Dan Watkins of the Technical Division about 15 years ago. This logo can be found on the outside of the Proton Assembly Building, aka PAB.

Jamieson Olsen methodically tests the Pulsar IIa prototype boards located on the 14th floor in Wilson Hall.

Some photomultiplier tubes from past experiments.

Greg Saewert and Daniil Frolov work on the front end of the PIP-II accelerator, called PIP2IT.

At the Fermilab Garden, two rows of ground cherry.

Weekly art stakeholders meeting. Attendees are Adam Lyon, Paul Russo, Chris Green, Kyle Knopfel, Marc Paterno and Rob Kutschke standing.

Reflections of the roof garden and the Feynman Computing Center on the windows of the IARC Building in late afternoon sun.

Fermilab's fireman Greg Hansen poses in his big red truck!

Rosemary Halenza is an on-call technician who works for Ron Lipton in CMS, and she is feverishly getting her work done!

George Ginther, Dmitri Denisov, Pete Simon and Stefan Gruenendahl gather in the DZero History Room for a short meeting. They are standing in front of a DZero drift chamber.

Seen from Fermilab in eastern sky at 6:30 p.m. for only a few minutes. Did you know there are 12 different flavors of rainbows?

More rainbow days

Without fail, Julius Borchert, mail clerk at Fermilab, hand delivers my mail to SiDet.

Kingbird on fence

The roof of the Central Utility Building is just visible over a grassy berm.

Amber Scroggins was very excited to catch her very first fish in Kidney Pond!

Tradescantia ohiensis - Ohio spiderwort

Elliott McCrory and his wife successfully planted their tomatoes at the Fermilab Garden Club today. Now we wait for these seedlings to rise up.

The irises of Nina and Alexander Moibenko are in full bloom at the Fermilab Garden Club.

Clouds over berm

Heron in a tree

Controls hardware for the old Cockcroft-Walton-based preaccelerator system still sits in the preacc control area, lying cold and dormant.

Pine Street

Marc Weinberg, a postdoc with Carnegie Mellon University working on the CMS detector, uses a microscope to examine a carbon fiber cutout for the high-granularity calorimeter.Marc Weinberg, a postdoc with Carnegie Mellon University working on the CMS detector, uses a microscope to examine a carbon fiber cutout for the high-granularity calorimeter.

Bendavid gives a talk titled "Extending the physics reach of the HL-LHC with precision timing capabilities in CMS."

Beam gate valve and tuner mechanism mounted on an LCLS-II dressed cavity

View of Wilson Hall from the NML Skybox meeting room

This is the underside of the Geodesic Dome in Lab A at SiDet.

Heading to the new Short-Baseline Neutrino Far Detector building.

The muon detectors encasing the DZero detector.

With Maya!

Dee Hahn left, and Lucy Ontiveros are not deterred by the gloomy skies! Dee is all set to ride the Main Ring on her trusty bike, and Lucy, who works with Workforce Development and Resources Section in Benefits and Recreation, will give out t-shirts and snacks to the first 250 participants that either walk, run, bike or inline skate the Main Ring.

Fermilab Director Nigel Lockyer says that we need to get ready for winter.

Joe Curry is one of the few plant experts from Schaefer's Greenhouse that takes care of the the atrium plants and flowers. Here he is holding a beautiful orange kalanchoe.

Storm clouds on Wilson Road

Working late isn't so bad when you catch this sight on your way out.

Working late is worth it when you walk out to such a beautiful sight! A vibrant double rainbow arching over Wilson Hall.

The pond outside of Wilson Hall is a beautiful place to watch sunsets.

The bison are shedding their warm winter coats to get ready for the hot summer.

Purple salvia plants decorate the west side of the Wilson Hall building. #MobileMonday

Seeing purple flowers bathing in morning sunlight makes it just a little bit easier to come into work on a Sunday.

This stand is one of the many survey points around the lab. This particular one is in the Main Injector ring.

Saturday brought more heavy downpours to Fermilab.

This red-tailed hawk is looking for lunch in the bushes near the BEG building.

ASIC engineer Tom Zimmerman designs an integrated-circuit chip for the FLORA project in Wilson Hall.

Jaroslav Zalesak, a NOvA scientist from the Academy of Sciences in Prague, discusses physics with a colleague during a break of the DUNE collaboration meeting.

While visiting Fermilab, Teal Pershing, grad student from the University of California, Davis, does a little reading after attending the last day of a DUNE collaboration meeting.

Trivia Night at Frontier Pub

No doubt this hawk is looking for breakfast to appear.

No longer used infrastructure in the Main Ring.

Fermilab Fire Department

A bright, friendly smile from Security Guard Lisa Villagomez at the Wilson Street entrance

Folks enjoy a hot dog lunch after planting a tree for the Arbor Day Celebration 2017.

Coordination meeting on Wilson Hall 13th floor construction

A magnet at the NML building

A spirea bush in full bloom in front of a Village house with a beautiful spiral staircase.

This may look like a large wall painted red, but it's actually a wall-sized magnet used by the SeaQuest experiment. Warning signs and flashing red lights alert visitors of the danger of strong magnetic fields.

Quadrupole magnet at the NML building

Garden Club entrance

On right, Artur Apresyan, and Marc Osherson discuss the High Luminosity LHC upgrade.

Site 49, Particle Physics Division Large Barn / Small Barn

It is good to know where your shelter is located. #MobileMonday

Oh look. The moon is still there ...

About 15 members of the FISH collaboration gathered near the bridge on the path to the Lederman Science Center.

Gotta catch 'em all

Tree swallows protect their nest.

A hawk hangs out near the Kuhn Village Barn.

Male bison guarding the perimeter while the rest of the herd sleeps.

The 28 high school students completed the requirements of the spring session of Saturday Morning Physics. Fermilab Director Nigel Lockyer handed out the certificates and posed for each of these pictures.

I have lots of pictures of my favorite tree, but few with anything other than the tree. Traveling on my own, I used to take selfies before they were even a thing. I also enjoyed black and white infrared when I used to shoot film. It's still possible with digital and only slightly more involved, so this nice sunny Saturday afternoon seemed like the perfect opportunity to do a little of both.

Nigel Lockyer and Elliott McCrory attempt to answer questions from the parents of the Saturday Morning Physics students.

This mourning dove built the third nest in this spot at BEG this year. First it was a chickadee who realized there was not enough support for her nest, then a swallow who presumably got chased away by this successful mourning dove.

Fermilab Security & Fire

Wood betony and blue-eyed grass bloom along the Margaret Pearson Trail.

Whiteboard at IARC after a data science meeting.

Pagoda building on Road C

This little baby bison looks at me as if to say, "it's lunchtime, please leave me alone now".

Pioneer Cemetery on Wilson Street

The Main Injector sprayers cool and regulate the low-conductivity water system.

Dave Augustine has worked at Fermilab for 39 years. He celebrates his upcoming retirement with his colleagues.

Momma barn swallow is a little disappointed with dad's efforts to quickly build their nest.

Does your laptop need the OS updated, or do you need to add a Fermilab email account to your iPhone? What do you do? You can call ext. 2345, or you can go see one of the Computing Help Desk specialists. Meet Tyrone Killebrew. He is usually there to meet you with a smile and provide excellent service. Tell him Leticia sent you!

Goslings and their protective parents near Wilson Hall

Yellow signs clearly label a radiation area associated with the old NTF (now NIF) beamline.

David Butler, leader of the Particle Physics Division/Rapid Prototyping and Special Materials Department, creates this plaque from leftover acrylic materials.

Rose Moore is the president of NALWO.

Dave greets new employees.

This one is trying to find his mommy by smelling around. The adult bison in this picture is NOT it.

Pictured is half of the floor of the warm vessel being lowered to its final location. The steel structure has a footprint of about 85 feet by 25 feet and weighs about 35,000 pounds. Two cranes are simultaneously lowering the structure into place. A group made up of Fermilab and CERN personnel is assembling the warm vessel at the SBN Far Detector Building.

Fermilab isolators at the Master Substation

View from Blackwell Forest Preserve in Warrenville

A flurry of ideas cover a whiteboard in the Mechanical Engineering Department of the Particle Physics Division.

Roads and Grounds barn on Site 65

Bison calf with herd

Sunrise on Eola Raod

View from Road C East

Turtles sunbathe on fallen trees by Wilson Hall.

Accelerator Division High Level RF Group members meticulously wrap copper bus bars with Kapton insulating tape as they prepare for the installation of new Booster RF stations. From left: Matt Domeier, Rick Zifko, Daren Plant

Heavy rains and high winds toppled an old dead oak in the woods, taking out several live trees.

Front of Wilson Hall

Cinco de Mayo at Kuhn Barn: music, dancing, food, a piñata. Local middle school students also offered special performances to celebrate.

When the first CDF central tracking chamber, the COT, was replaced for Tevatron Run II, we did some work on it so people could see the wires inside it. It is quite a beautiful object. and we were thinking of putting it in the high-rise building, Wilson Hall. This frame is the size of the COT and was designed and built at the Proton Assembly Building to see how the COT would appear in the high-rise. I guess it was decided that it did not fit well.

Nap time for the youngsters

This is a two-piece photo. The top is a 20-inch, approximately 50-pound (if not more) lead-glass block that made up the E-760 electromagnetic calorimeter. The glass has a high lead content and is exceptionally transparent to allow the Cerenkov light produced by fast-moving electrons to reach the photomultiplier at the end, says Stephen Pordes. He also states that the shape is quite unusual. The 1,280 blocks together made up a hollow cylinder. The bottom of the photo is a refection when looking through the rectangular glass. Cool, huh!

Nice to see many of these at Fermilab.

An all-scientists retreat in the CDF Big Room.

Doodling a couple pictures I took of Wilson Hall.

If you get a ticket, this little birdy wrote you up.

Kanika Sachdev discusses some new posters to display during the Fermilab 50th celebration with Kurt Riesselmann.

Playgroup meets weekly, typically at the Kuhn Barn and surrounding area. Jessica Jensen organized a special visit to the bison barn with the opportunity for the excited children to ask questions to Cleo, the bison herdsman.

This school bus carried students to Fermilab for the My Brother's Keeper event.

Mustard plants along the bison fence.

A bad week of rain and storms, however they sure produce some neat looking cloud coverage.

Just a small break in the clouds to show us that, even with a dense cloud cover to start a day, the sun still shines above the clouds ...

Spring prairie after lots of rain.

A rare occurrence in Wilson Hall today: The fire door between the Wilson Hall atrium and Ramsey Auditorium is down. #MobileMonday

A crayfish enjoys time on the walking path on this rainy day.

Bison herd in the field relax in the rain. #MobileMonday

Proton Pagoda area

Flowering tree on the edge of Big Woods

"The best thing one can do when it's raining is to let it rain." — Henry Wadsworth Longfellow

Javier Duarte, left, quickly goes over some data with Caterina Vernieri. They were helping out today with the "Dare to Dream" Latina conference.

These are even fluffier!

A sudden ground fault indication in Main Injector prompted an evening access into the tunnel. Kyle Hazelwood uses an insulating hotstick to disconnect a Main Injector power supply from its bus to aid in the search for the fault.

The Village Bell Tower stands naked and alone, its bells removed long ago. The tower was conceived by Fermilab's first director, Robert Wilson, to call the scientists to meetings during the first years of the new National Accelerator Laboratory.

....these three guys looking at me! From Left: Israel Alatorre Hernandez from University of Guanajuato, Scientist Juan Estrada from the Particle Physics/Astrophysics Department, and Clecio De Bom from Centro Brasileiro Des Pesquisas Fisicas, discuss MKIDS microwave kinetic inductance detectors. This cleanroom is located at SiDet.

Seven goslings, two geese, one National Accelerator Laboratory. One of them might be named Ryan, I didn't check.

A look inside the new BnB building

Just couldn't resist when I saw how close to the fence they were.

Prominently displayed at the entrance to the Technical Division's Cryogenic Systems Department at MW9, this is the duplicate of the plaque presented by American Society of Mechanical Engineers to Fermilab in honor of the Tevatron's cryogenic achievement. Why the duplicate? There was a high-temperature typo!

These ladies did an exceptional job organizing the Administrative Professionals Day luncheon as they do every year. Thanks again ladies, I sure enjoyed myself and I think everyone else did too! From left: Marie Herman from the Technical Division, Odarka Jurkiw from the Facilities Engineering Services Section, Christine Johnson from Workforce Development and Resources Section, and Connie Lang from the Particle Physics Division.

Fermilab honored the administrative professionals today with a gala luncheon at Batavia's Riverside Banquets.

Baby geese take command of the ponds!

Kids and their parents share a potluck dinner prior to a craft game.

Happy Administrative Day for the Particle Physics Division admins! The PPD staff invited the Administrative Group to the department heads meeting, where Patricia McBride, PPD head, proceeded to give a lovely speech on how much the staff appreciates the hard work done by all in the PPD administrative team. Then we had an assortment of cheesecakes and fruits for dessert ... yum!

A bull enjoys alone time.

The Long-Baseline Project Controls Team shows their appreciation for their administrative support by taking them to lunch at City Gate Grill!

Dave Harding, center, and Elliott McCrory, left, talk about the physics of sports at the John C. Dunham STEM Partnership School at Aurora University. This photograph was taken by the math teacher of these fifth and sixth grade scientists at the school.

Donovan Tooke was getting ready to hand out Muon Campus access keys during yesterday's shutdown.

These lovely woodland phlox flowers are scattered through the woods between Wilson Hall and the Lederman Science Center.

As I drove into work, one of our pollinator friends got a hold of the window of my car.

Alan Prosser, on left, and Lorenzo Uplegger, both from the Scientific Computing Division, discuss the work being done on the CMS support frame and outer tracker module. This work is being done at SiDet in the Detector Test Area.

Wilson Hall as seen via a reflection in the windows of the MC-1 Building.

The cherry trees at the Fermilab Garden Club near the Village are in full bloom today. MobileMonday

Anne Heavey is the document writer for LBNF and DUNE. Notice the really big dictionary she has!

A steady supply of M&Ms keeps operators awake and happy on a long 12-hour owl shift.

Fermilab from 12,000 feet heading west.

Pond reflections on Ring Road

Karen Seifrid, Dave Pushka in the foreground and many non-Fermilab folks attend a country line dancing event at the grand old Kuhn barn. Janet Kruse is the instructor and leader for this group, which dances at Kuhn a couple times a year.

Eric Prebys lectures on accelerator physics to the Saturday Morning Physics students. Note the cheat sheet on the blackboard for the common variables used in this field.

Mama bison with day-old baby following her step-by-step.

The fan-like leaves on this blooming gingko tree will turn to a golden yellow in the fall. There are two of them in front of the SiDet building.

Happy birthday - Fermilab is 50 years old, but this new baby was standing on its own in 50 minutes. This little one was born on April 20, 2017.

14th floor coffee club. The sign reveals the secret to good coffee.

Heavy Assembly Building

Retired Fermilab scientist Bob Flora, on the right, explains the environmental benefits of owning two electric cars to Brian Chase, left, and Vladimir Shiltsev. Note Bob's Tesla hat. This discussion happened in the Wilson Hall Atrium during Fermilab's Earth Day celebrations.

Greg Derylo, of the Particle Physics Division Mechanical Department, prepares support frame for beam testing of a CMS phase II module.

This is a ground-view perspective of the AZero parking lot work.

Andrew Sonnenschein, of the Particle Physics Division Astrophysics Department, gives a thumbs-up on the working vacuum pump pictured there on the table.

Kathy Flores always delivers the mail with a smile and takes time to say hello.

On display in the Fermilab Art Gallery "50 years of Science and Art – the Employee Art Show"

South view of Wilson Hall

A simply gorgeous day to be riding a bike.

Chief Accelerator Officer Sergei Nagaitsev chats with Paul Czarapata just prior to the Accelerator Division All-Hands meeting in Ramsey Auditorium.

Bloodroot and spring beauty wildflowers in the Big Woods.

Ryan Campbell leads the wildflower walk through the Big Woods.

Education Center on first day of work

A Cross Gallery hallway display of the different types of cables that can be found throughout the laboratory.

Bees are active today, pollinating the apple blossoms at the Fermilab Garden Club area near the village. MobileMonday

They're here already. In the east reflecting pond.

First goslings I've seen, they are so adorable! #mobilemonday

What was once the old Wilson Street entrance on the east side.

Nicola McConkey of SBND plays for the Fermilab barn dance with her band, Minor Contravention. Band members are Charley Roberts on piano, Nicola McConkey on fiddle, and Ian Roberts on squeezebox.

A view of spring at Aspen East.

Looking across the farmer's field on the north side of Fermilab.

Tree swallows make a nest.

The Friday evening storm moves eastward over the MINOS building.

It was interesting to watch the bison teasingly play with one another.

At lovely lunchtime hour deserves some outside time, riding the Main Ring at Fermilab to catch the sights.

Birds circle above Wilson Hall on a cloudy morning.

A dramatic picture of Wilson Hall on what seems like a never-ending progression of stormy days.

A beautiful blue hyacinth blooms near Wilson Hall.

Wilson Hall welcoming committee

Thamnophis radix, or plains garter snake, near Master Substation

Old-school lawn mower

Brian Carew, on right, and Ryan Frantzen from Roads and Grounds get an early start maintaining the Fermilab roads by filling some potholes.

In the Main Control Room, operators were being trained.

Fermilab's firemen Richard Graff, left, and Dave Sabatino making their rounds to ensure our fire extinguishers are ready for action if needed. Thanks guys!

The spring wind reversed the flow for a short bit at one of the Main Ring cooling ponds.

A lovely rainbow appeared over the bison barn this afternoon.

PPD Admin group meets for discussions. Clockwise from left: Luz Jaquez, Support Services Department Head, Connie Lang, Leticia Shaddix, Patricia Guijarro, Olivia Vizcarra, Barbara Hehner, Carolyn Johnson, Terry Reid, Sonya Wright, Carrie Farver, Noel Weidman

Mike Campbell at Fermilab gave this visiting photographer a cook's tour of the remote handling robot for Mu2e. This is an amazing machine.

Javier Tiffenberg, left, of Particle Physics Division Astrophysics and visitor Miguel Sofo of Centro Atomico Bariloche in Argentina discuss the Sub-Electron-Noise Skipper CCD Experimental Instrument (SENSEI) project in Lab A at SiDet.

On display in the Fermilab Art Gallery "50 Years of Science and Art - the Employee Art Show"

Electrical towers, power lines and clouds.

Wind blows water from the Main Injector cooling pond jets.

Sunset at Casey's Pond

Enjoying the warm weather at Kuhn Village Barn. Warmup dance on the lawn before the Barn Dance inside. The dancers are Vijay Iyer (a researcher on SuperCDMS from National Institute of Science Education and Research) and his partner, Ashli Shea

Al Johnson works the mixing board for the Tom Skilling/WGN/Fermilab Tornado Seminar.

Several of the speakers backstage during the Fermilab/WGN Tornado and Severe Storm Seminar hosted by Tom Skilling.

Fermilab artwork.

Reflection

Marcia Teckenbrock chats with some colleagues during the weekly Wine and Cheese gathering.

Someone's helping the beavers! This was taken from the channel between Kidney Pond and Swan Lake.

The imposing structure of the old Haefely voltage multiplier puts the small, new, upgraded source and preaccelerator to shame.

Stairwell, Wilson Hall

Wilson Hall as seen from IARC

Lenny Spiegel analyzes his options as he and other members of the Fermilab Chess Club play in the Wilson Hall cafeteria on Wednesday evening, April 5.

Brendan Casey, left, and Spencer Pasero have a chance encounter at the water machine in the Wilson Hall cafeteria.

Every Tuesday like clockwork, for over 25 years, the shoe man has been parking his trailer behind the industrial complex to provide safety footwear to physicists, engineers, technicians, contractors, construction workers, anyone who needs this type of protection.

Matt Alvarez and Mike Pham discuss the design of the Mu2e electrostatic septa during a meeting.

Another wet and hazy day on the 'back forty' of the Fermilab site.

This bare tree and emergency siren are not too far from the fire station.

David Pushka begins Fermilab's first "Ask an Engineer" and gives a talk about how we built the NOvA experiment.

A brief break in the last week's perpetual rain allowed a touch of blue sky to peek out behind the clouds.

Scouts from St. Charles, Illinois, go on a "pack hike."

Completion of the of the MC-2 Building awaiting neutrino experiments for the future of Fermilab.

Indian Creek Stables: established in 1971, closed in 2016. The weathered Fermilab logo can be seen on the side of the barn.

Senior scientist Bob Bernstein engages with one of the many brilliant young minds at Saturday Morning Physics.

There's pasture that serves as a home;
where Fermilab's buffalo roam.

It's a frequent and popular place;
where visitors relax their pace.

They gaze at the magnificent beasts;
who graze on tall prairie feasts.

And the visitors can ponder the era;
when great herds spread fara and neara.

A regular stop on any tour is the CMS Remote Operations Center.

Low fly-by view of the Fermilab site model on the 15th floor of Wilson Hall

Officers of Fermilab Student and Postdoc Association FSPA in the Russell Senate Office Building. Left to right: Rui An, Jessica Esquivel, Wes Gohn, Mônica Nunes and Kanika Sachdev.

When the rain is hard enough, people use the utility tunnel to go between the Accelerator Division and Wilson Hall.

The people who represented us in Washington, DC, this week were: Front row: KellyStifter SLUO, Corrinne Mills USLUA, Samuel Meehan USLUA, Jane M. Nachtman USLUA, Zeynep Demiragli USLUA, Sowjanya Gollapinni UEC, Rachel Hyneman USLUA, Cindy Joe UEC, Louise Suter UEC, Chair of DC Trip, Kanika Sachdev FSPA, Georgia Karagiorgi UEC, Rui An FSPA, Sarah Lockwitz UEC, Jesus Orduna UEC. 2nd row: Verena Martinez Outschoorn USLUA, Yangyang Cheng USLUA, Ed Kearns UEC, Darin Acosta USLUA, Omar Moreno SLUO, Frank Chlebana UEC, Eli Rykoff SLUO, Joseph Zennamo UEC, Javier Duarte USLUA, Breese Quinn UEC, Justin Vasel UEC, Sarah Demers USLUA, Tammy Walton UEC, Mônica Nunes FSPA. 3rd row: Trey Holik USLUA, Emmanuele Ravaioli USLUA, Thomas Strauss UEC, Mark Kemp SLUO, Samuel Totorica SLUO, Sergei Gleyzer USLUA, Harvey Newman USLUA, Rob Fine UEC, Eric Prebys UEC, Mazin Khader USLUA, Ryan Linehan SLUO, Wes Gohn FSPA. Back row: Michael Baumer SLUO, Sebastian Aderhold FSPA, Brian Shuve USLUA, Andrea Albert SLUO, Jahred Adelman USLUA, William McCormack USLUA. Institutions: SLUO: SLAC Users Organization; USLUA: US LHC Users Association; UEC: Fermilab Users Executive Committee FSPA: Fermilab Student and Postdoc Association.

Today's colloquium featured Rocky Kolb, seated on stage on the left, and Michael Turner, Kavli Institute for Cosmological Physics, University of Chicago, with Joe Lykken, far right as emcee. The colloquium was titled, "How Fermilab Changed the Course of Cosmology."

50 years of science and art!

Al Johnson and Reidar Hahn prepare for a video shoot with Michael Turner and Rocky Kolb in the Creative Services studio.

Flower displays in Wilson Hall always brighten my day.

Fermilab's various experiments comprise thousands of collaborators from many countries. There is a set of flagpoles in front of Wilson Hall that flies the national flags of many collaborators. It is a steady reminder of how vital international relationships are in the age of modern particle physics as well as an expression of respect and gratitude to those countries.

David Huffman tests the Muon g-2 correction coil driver card.

Fermilab uses high-power radio-frequency (RF) accelerating cavities to accelerate particle beams. In much the same way as the body of an acoustic guitar allows a standing sound wave to resonate, RF cavities allow electromagnetic waves to resonate. The Marx modulator is part of this system. It turns on just prior to the arrival of the beam and powers an amplifier tube that amplifies a 201-MHz radio wave up to several megawatts of power. It turns off once the beam has gone past, and it does this 15 time per second! The Marx modulators are a replacement to the previous modulators, which have been in use since the earliest days of Fermilab.

This tree always makes me think it belongs in a Harry Potter movie.

Wilson Hall on a foggy wet spring day

Accelerator Division Main Control Room Crew Chief John Kuharik (not pictured) gave a shift briefing at the time of this photo, brought in several pies to weekend "owl" shift, and asked for input on which key lime recipe was better. White eventually won, but everyone agreed both were delicious.

Brian Nord answers a student's question in gravity in the #FermilabSMP #Cosmology lecture!

Reflections in the water on a gray, rainy Fermilab day. It must be spring!

Minerba Betancourt, left, carefully listens to Sowjanya Gollapinni of University of Tennessee, Knoxville, during an impromptu meeting in the Wilson Hall atrium.

Two ducks say hi!

At 6:40 a.m., looking towards the east, the pre-sunrise brings us lovely pinks and purples to enjoy.

Muon g-2 experimenters work on the electromagnet in MC-1 building. The plan is to start beam commissioning on April 3.

Elliott and Marty McCrory at a Fermilab Photography Club meeting.

Many people contribute to the Art Gallery at Fermilab. Here Michael has repaired the wall and now is painting. The Art Gallery Committee installed all 45 pieces of employee artwork! It is a wonderful exhibit.

Jose and Reyna Cardona get ready for another exciting and challenging day at Fermilab.

A flock of sandhill cranes greet the sunrise at a flooded field in the northeast Eola grasslands. They were spotted there on Monday afternoon and presumably stayed overnight. By noon Tuesday, they were gone.

Will Alvarez of the Fermilab Roads and Grounds crew supervises a prescribed burn at the Main Injector.

Dirk Hurd takes the "One Lab" motto seriously, and here he is walking his talk.

Looks like this blue heron is planning on a little fishing in this stream.

This photo was taken on March 20 of two offices on the 13th floor, which is under construction. Shortly after this photo was taken, both chalkboards were removed.

Chris Kemp packs artwork from artist-in-residence Ellen Sandor and artn exhibit "Neutrinos in a New Light" in the Fermilab Art Gallery.

A goose swims through a reflection of Wilson Hall.

This snake was found in the Cross Gallery hallway on the first day of spring. At the same time, Ruth Becker was walking by with some flowers, so we decided to merge the snake and flowers in one shot.

Underground and outside the NuMI Target Hall. These oversized tools are used primarily during Target Hall maintenance and repair periods.

First day of spring, signs of new growth in some wooded areas.

What a great way to spend a Sunday: by sketching at Fermilab.

Randy Hultgren right, Congressman for the 14th district of Illinois in the US House of Representatives, addresses the high school students in the Hultgren STEM Scholars program at the Lederman Science Center. Also visible, along the back, 143 Janet Chaterji, Nigel Lockyer, Swapan Chattopadhyay and Hema Ramamoorthi.

It may be gloomy outside as well as inside, but discussions continue with Rich Schmitt and Russ Rucinski of the Mechanical Engineering Department.

This photo illustrates a newly upgraded Linac solid-state modulator, seen in perfect focus through a blurry hole cut in the shape of the Fermilab logo. There's symbolism about Fermilab offering a glimpse into the future somewhere in there, I just know it.

A young white-tail deer buck forages grass along Eola Road.

"Physics" license plate spotted near the NML building. The Proton Pagoda is visible in the background on the left, and SiDet is visible on the right.

A couple of fellas from Westmont, Illinois, came specifically to Fermilab in hopes of catching sight of a coyote to photograph, which they read about in the Fermilab News. They told me they were amateur photographers ... then they saw the ponds and decided to fish instead. They both caught a couple of bass. They were very excited.

You can see these inside the Central Utility Building.

Physics Professor Kryemadhi and students from Messiah College stand around the Mini Electromagnetic Calorimeter experiment. The calorimeter is made of LYSO crystals, and silicon photomultipliers are used as photodetectors. The purpose of the experiment is to assess the dynamic range of the photodetectors and our ability to build compact detectors for space-borne applications in particle physics. Front left: Professor Kryemadhi. Clockwise: Jacob Mohler, Alex Roth, Lindsey Barner, Andrew Groves.

Meson area, MW7, MW8

In celebration of National Pi Day, let's eat pie!

Mr. Robin puffs up his feathers trying to stay warm.

John Kuharik measures components for radio-frequency accelerating cavities.

Holly Lett of Workforce Development and Training teaches at the Training Center on Time Management and Organization Skills: Working Smart.

Ettore Zaffaroni, a visitor from CERN in the test beam area, works to understand how our pocket dosimeters work during "Rad Worker Practical Factors Training."

Abri Credit Union celebrates Pi Day by giving away pie on 3.14.

We got a little snow at Fermilab. Folks east of us got hit a lot harder.

Orchids beautify an office while the Bubble Chamber beautifies the courtyard of SiDet.

Chandra Bhat and Salah Chaurize at the end of the day in the Main Control Room. #mobilemonday

In celebration of its 50th anniversary, Fermilab organized an Ask-a-Scientist outreach event, Pregúntale a un Científico, focusing on the Spanish-speaking community. From left, some of the helpers: José Becerra, Edgar Valencia, Gonzalo Díaz, Fernanda Psihas, Leonidas Aliaga, Erika Catano, José Sepúlveda and Diana Méndez.

A red-tailed hawk seems attentive as it suns its back on a 15th-floor ledge overlooking the Tevatron AZero parking lot. This was taken while giving a visitor tour.

Minerba Betancourt, scientist for the MINERvA collaboration, asked her son to hand out the neutrino balls to the audience during the "Pregúnte a un Científico" Ask-a-Scientist lecture.

Mehreen Sultana, a graduate student at Rochester University working on MINERvA, gives the Saturday Morning Physics lecture. She talks about the changes to physics around the turn of the 20th century with a talk titled "1905: A space-time odyssey."

The Fermilab dog walking area near the southeast corner of Batavia and Eola roads is a great place to bring your dog on the weekend.

Robert Barger has been at Fermilab since 1974. He's been in the Calibration Shop in the Proton Assembly Building at the lab since 2009. Here Bob is calibrating a transducer that will be used for the Mu2e compressor system.

Main Injector scientist Rob Ainsworth racks his brain to figure out measurement data from the Recycler Ring. #blackandwhite

Meeting for the Particle Physics Division Web Modernization project. Back right: Maura Barone, Luz Jaquez, Barb Kristen. Back left: Rodney Klein, Carolyn Johnson, Noel Wiedman.

This shows the transport of the prototype module for SLAC's LCLS-II. Pictured are Chris Exline, Ron Kellet, Kyle Kendziora, Elias Lopez and Jerry Leibfritz.

The Main Control Room is a notable stop on most tours of Fermilab. On any given day accelerator operators are observed by groups of school children, university students and members of the public with an interest in physics. Group sizes range from a couple to dozens, and if the machines are running well, operators will often stop outside to answer questions.

The Heavy Assembly Building is adjacent to the Illinois Accelerator Research Center.

Wednesday was a very windy day. Gusts reached 70 MPH around Chicagoland, and some trees at Fermilab did not survive the day. This tree went down along the road around the Main Injector. The Roads and Grounds crew were informed and later removed the tree.

The picture shows a very windy midday from the vantage of the Wilson Hall east parking lot looking to the ring.

The new tapestries in the ROC-East, CMS control room. This artwork represents five views of the science from CMS, by artist Xavier Cortada.

Focusing my camera through the screen of the Lynx Evo stereo microscope, which has a 360-degree rotating viewer. This image is of 1 pixel on a 270-pixel South Pole Telescope detector wafer.

Former director John Peoples entertained young and not-so-young alike with the history and lots of fun and interesting anecdotes from the early days of the laboratory, culminating in the successful completion of the Tevatron collider.

Members of the IARC Office and Accelerator Physics Center celebrate the International Women's Day - March 8. From left: Dawn Staszak, Tatiana Hamilton, Rosa Foote, Alexey Burov, Susan Winchester, Irina Novitski, Igor Tropin, Nikolai Mokhov, Igor Rakhno, Vladimir Shiltsev.

Looking across the Main Ring Pond towards the high-rise, seeing all the waves and white caps

As I drove around, I came across this marvelous view for a March morning.

Tom Kroc, Emergency Notification Drill

A coyote licks it lips as it prepares to eat a muskrat, not visible, that it caught near a cooling pond.

Chris Olsen fiddles with a finicky power supply that's holding off beam to one of the experiments. Nothing can stand between a determined operator and accelerating beam.

Engineer Trevor Butler contemplates the intricacies of replacing a klystron in the Fermilab Linac. Klystrons are used at Fermilab to provide high power radio waves to accelerate a beam of negative hydrogen ions in the Linear Accelerator. #mobilemonday

Tia Miceli gets in a little work before the 3:30 Director's Coffee Break.

Using my cell phone with a 15x macro lens to capture an extreme close up of tiny moss on Lab A's concrete building ... how fun!

Sunrise reflects in MC-1 window.

The Gallery Chamber Series takes place in the Fermilab Art Gallery on Sunday's at 2:30 p.m. during the winter months.

A warning sign stands on a completely dry floor at Fermilab.

Kurt Riesselmann and Kim Mazur discuss public outreach at the Wilson Hall reception desk.

Donna talks about the temperature measurements in the universe, and here she uses her cosmic microwave background (CMB) beach ball to explain it.

Wilson Hall on a cloudy day

This shot is taken in the FAST beam enclosure while looking downstream between the yellow cryostat and its radio-frequency power distribution frame of the famous record setting CM2 cryomodule. The cryostat is like a giant Thermos® bottle, insulating the eight 9-cell accelerating cavities that are sitting at near absolute zero. The superconducting radio-frequency (SRF) technology developed for CM2 also has applications for light source instruments such as LCLS-II at SLAC in the United States and DESY’s XFEL in Germany. SRF cavities appear to be the future of particle accelerators. This summer CM2 will accelerate beam for the first time.

Using what little snow fell overnight, someone created this miniature icon. It's sitting on the bridge railing of the Lederman Center footpath.

Just a tad of snow as we drive into work this morning.

Taken while riding up the 150ft elevator shaft at MI-65.

Site 29, parking lot

Proton Source personnel move linac power amplifiers down the linac gallery.

Gary, ever-vigilant in any weather, protecting the occupants of the Industrial Center from geese.

View from front entrance of Wilson Hall during a rainy morning.

Soil experts now think earthworms surface during rain storms for migration purposes. "It gives them an opportunity to move greater distances across the soil surface than they could do through soil," said Dr. Chris Lowe, Lecturer in Waste and Environmental Management, University of Central Lancashire in Preston, UK, "They cannot do this when it is dry because of their moisture requirements."

Alyssa Miller works as an operator in the Accelerator Operations department. In this image she is at her Main Control Room accelerator controls console.

Cathy Barker of FESS Fermilab Transporation Services gets us to where we need to be...Thanks Cathy!

Often, it is all in your perspective as this photo of Wilson Hall shows.

Maurice Ball at a Main Control Room Console. Maurice is a mechanical engineer in the Accelerator Division Mechanical Support Department. #MobileMonday

Please capture my good side!

Wilson Hall rises above the A0 service building as the sun rises.

Late on a Sunday evening, while the Oscars are being broadcast, no one can be seen in Wilson Hall.

Matt Zhang UIUC and Dylan Frizzell University of Oklahoma enjoy taking data for Atlas Pixel group at Fermilab Test Beam Facility FTBF using the MTest beam line.

The MINOS building on a grey Saturday.

From the back - Jennifer Nahn, Kim Mazur, Bonnie Alcorn, John Urish, Dave Dykstra, Hans Jostlein, program Director Janet Mackay-Galbraith, Sue Campbell, Georgia Schwender, Trish MacLachlan

Brian Nord, left, uses Adele to make a point in his presentation about cosmology to the high school students in Saturday Morning Physics.

Tamara Hawke is in the Micro bonding room in Lab D at Sidet preparing to micro bond a module for Duke University.

Fermilab's first director, Robert Wilson, and current director, Nigel Lockyer, depicted in another of Julie Vander Meulen's lunchtime chalkboard scenes.

Commissioning of the ventilation system at new building SBN-Near detector.

Scott Doerr has been retired from Fermilab for a couple of years now and enjoys bringing his dogs to the Fermilab Dog Training area.

New plant growth shows up as green stubble on the meson berm, one week after a prescribed burn. This shows the view after sunrise, looking west from MW9.

Road and Grounds are removing dead and dying pine trees across the lab in preparation for the 50th anniversary open house. Used for this effort is a front end loader with a grapple attachment for moving branches and logs, normally this machine would have a bucket for moving bulk materials such as dirt, stone or road salt. This removal effort has been ongoing over the last decade here at Fermilab.

I am very proud to work at Fermilab.

Looking north from the 15th floor of the high-rise to see what I can't see.

Panorama overlooking the Muon g-2 building and the Muon Campus

Sunset an a beautiful February evening.

Eduardo Mejia fills up with liquid nitrogen from chiller to cool down CCDs for the DESI experiment.

A serene moment on Wilson Hall's 15th floor south crossover, looking out at the Booster and the Muon Campus. #MobileMonday

Jim Wish, of the Particle Physics Division Scintillation Detector Development Group at Lab 6, works on the ProtoDUNE Light Bar Dipping Station for DUNE.

Utilities under Wilson Hall

These signs outside the MINOS Service Building show how scientific advancement really is an international effort.

During the art/science tour of "Neutrinos in a New Light" by artist-in-residence Ellen Sandor and art^n, this image was created by the virtual reality tour of MicroBooNE.

Obligatory sunset picture of the "Broken Symmetry" sculpture. In the springtime this is what I typically see on my evening commute as I walk home.

Fava of the Neutrino Division lectures on "Particle Detectors" at Saturday Morning Physics. Here she is showing the high school scientists what a phototube and a plastic scintillator look like.

Wilson Hall Stairs

The bright blue "overload" button from Linac's drift tube RF station #2. This is a feature exclusive to the drift tube Linac stations that lights up when an error has caused a component of this RF delivery system to malfunction. Beam is inhibited until an operator or expert is able to reset and restore power to the station, or the station resets itself, depending on the severity of the station's trip status.

A fish-eye view of Wilson Hall, the display of international flags, some geese and the moon.

Bison enjoy their lunch on this beautiful 58-degree February day.

Members of the Roads and Grounds crew start the back burn prior to setting Meson Hill on fire. Smoke from the fire drifted over Casey's Pond to the north of Meson Hill.

Lee Hammond performs a punchlist walkthrough of the ventilation system in the new Short-Baseline Neutrino Near Detector building.

Cons is one of the many people vital to keeping the accelerators running in top form. Once per year the Accelerator Division turns off its machines for a few months to implement upgrades, complete maintenance and bring new equipment on line. These jobs require coordination across multiple AD departments and laboratory divisions. At the end of the day, Cons is the person who ensures all the jobs are completed safely and on time. Additionally, he's the installation coordinator of the Muon Campus beamlines.

"I fell into a burnin' ring of fire. I went down, down, down, And the flames went higher. And it burns, burns, burns, The ring of fire, the ring of fire." —Johnny Cash

Thick chunky exposed concrete structural elements are characteristic of Brutalist architecture. This imposing fortress-like or bunker-like postmodernist architectural style was popular with public building projects from the 1950s through the 1970s.

Andrew Lathrop and Marco Bonati look over the MKIDS helium refrigerator located in the Lab C North cleanroom.

The sun sets behind the new transformer station.

Chipmunks making special measurements along the MI-8 line from Booster to the Main Injector.

Sheryl Westwood and Martin Valenzuela from the Roads and Grounds Department inspect the pruning recently done to the hedges at SiDet.

Trees reflect in the Proton Pagoda.

Prescribed burns are a vital part of land management at Fermilab. Wednesday's land management units scheduled to have a prescribed burn were the Main Injector Stockpile, Prairie 24 and the Wetland Mitigation. These burns may be interesting, but remember to always keep a safe distance from the burn area and the professionals managing the burn.

This is the view looking straight up the 330-foot 100-meter MINOS shaft. Underground at MINOS one can find the NOvA and MINERvA near detectors. MINOS is an acronym for Main Injector Neutrino Oscillation Search.

These guys regularly exercise in the Fermilab gym. They joke around and make things fun but work hard when moving iron. From left: Sathapat Sukkert, Stanley Kramer, Al Elste, Jim Nichols

Lovin' the dessert at The Frontier Pub!!

Annual chili cook-off at the Fermilab Test Beam Facility (FTBF). People at the feast include members of the sPHENIX group T1044, including Balazs Ujvari, Ron Belmont, Kurt Hill, Craig Woody, John Haggerty and Jin Huang. Past and present staff of FTBF include Erik Ramberg, Aria Soha, "JJ" Schmidt, Mandy Rominsky, Todd Nebel, Ewa Skup, Jerry Zimmerman. and Ray Safarik; Particle Physics and Accelerator Divisions support including Steve Huey, Adam Watts, Mike Backfish and Wanda Newby. Chili pots by Nebel, Skup, Huey, and Haggerty.

Sunset at the Meson Lab after a day at the Test Beam

Members of the Fermilab Roads and Grounds group conduct a prairie burn inside the Tevatron Ring. Over the course of two days the most of the Ring's interior was systematically burned. Burning prairie serves to fend off invasive species of plants while perpetuating the growth cycle of native prairie flora. The portion of the ring being burned here is a restored oak savanna. Oak savannas are among the rarest plant communities on earth and regular prairie burning helps to keep them vital.

Amanda Early, Katie Yurkewicz, Andrea Heeg and Valerie Higgins in a 50th Anniversary Coordination Committee meeting looking at the DIFF website

Fermi prairie burns will encourage new growth of native species.

Fermilab Chief Engineer Chris Mossey makes opening comments to lab engineers at the annual Engineers Retreat in the CDF Big Room.

Alex Walsh, undergrad working with CMS, tests noise on detector with different temperatures in the Detector Test Area at Lab C-D, Sidet.

Smoke obscures the sun from a mid-February prairie burn.

Smoke from the prairie burn in the Robert Betz Prairie

Mobile Monday - Wilson Hall is obscured by smoke from the prairie burn in the Main Ring.

A new flag has been added to those hanging in the Wilson Hall atrium.

#MobileMonday - I drove by this little stream of water which led my eye to the Proton Pagoda and that huge tree.

The Fermilab Roads and Grounds crew performs prescribed burns in prairies, woodlands and wetlands across site. This is a required land management tool to keep habitat biodiversity healthy. Here, a drip torch waits to be used.

This shows a controlled prairie burn east of Feldott Road.

Site 38 Pond, Windmill and Rope Building

Taking a break for the weekend. Around 8:00 in the morning, there was no one around except me.

Elena Gramellini explains the virtual reality of the MicroBooNE particle detector.

Hawk on a lamppost near Wilson Hall

The ghosts of Tevatron past

They didn't look both ways before they crossed, but they did obey the speed limit.

Long-forgotten gas storage tank behind one of the service buildings down the proton beamline along C-Road East.

Micky, as he introduced himself all day, has had an interest in particle physics since childhood. In fact, he filmed part of the construction of the Main Ring back in 1970 and exchanged that film for this tour. Left to right: Ting Li, Douglas Tucker, Sahar Allam in front, Harry Ferguson in back, Micky Dolenz, Tom Kobilarcik, Paul Derwent and Steve Hahn.

Young scientists are eager to start work in the newly inaugurated Materials Science Lab in Technical Division.

A full moon rises over the northeast portion of Fermilab, West Chicago and Wheaton. The moon was rising in the midst of a penumbral lunar eclipse and through a veil of high clouds. This is a composite of nine images taken with a 200mm lens on a 35mm digital body; the exposures were captured at an interval of 2.5 minutes.

Central Utility Building lights at night across the Booster pond.

The Fermilab Photography Club took a lunchtime photo-walk through the Tevatron tunnel on Thursday. I snapped this picture looking toward the DZero detector hall with my iPhone prior to exiting.

You remember that old song, "Stairway to..."? Now I remember, "A Stairway to the Pagoda ..."

Fermilab logomark in stainless steel

The beam switch sum box receives signals from various components of the accelerator complex in order to permit beam. However, even if all permits are made up, beam will not accelerate to destinations beyond the Linac without the HEP High Energy Physics enable key.

The tree line leading to the high rise silhouetted against the pre-dawn light.

Wilson Hall at sunset

A muskrat swims through the partially frozen pond near the F1 service building.

A set of BNC connectors and cables for carrying analog readbacks from the modulator belonging to Booster's RF station #15.

Workers on the 12th floor burns the five o'clock oil.

Main Control Room's relatively newly acquired chairs are moved from the carpet to the linoleum floors in order for the cleaning crew to vacuum — one of the highlights of an operator's evening shift rotation.

Feeling quiet and mysterious to me.

Irwin Gaines contemplates something during a break in the All-Scientists Retreat in the CDF Big Room.

The low-conductivity water headers have just been installed in the Mu2e M4 beamline enclosure. Eventually, magnets, stands, vacuum, cables and other components will be installed.

Muon g-2, pronounced "g minus 2," is one of two experiments under development at Fermilab's Muon Campus. The plan is to begin commissioning the beamlines to Muon g-2 later this spring

Colorful cables neatly connect some of the Feynman Computing Center computing that serves Fermilab.

A stack of used titanium ion pump anode cells near the Preaccelerator observation window in Linac Upper Gallery. Cathode plates and magnets are paired with a set of anode cells, and, with the help of high voltage, air particles present in a volume of beam pipe are ionized. These air particles are captured in the titanium, lowering the pressure and increasing the quality of vacuum.

George, a safety mascot, is the officemate of an engineer in the Accelerator Division.

The dry weeds in the prairie along Pine Street stand out in front of Wilson Hall.

Patrons crowd around two members of the group The Three Celli.

Gallery Chamber Series - The Three Celli - a concert in the Art Gallery.

Subliminal message for lunch.

While the people are away the animals come out to play. Notice the hawk in the tree watching the sunrise?

Approximately 100 children in 1st-3rd grade came to Fermilab to show off their robotic creations. The students all did research on a topic related to this year's theme, "Creature Craze," and built a project to illustrate what they learned.

Saturday Morning Physics continues in One West every Saturday. An attentive and smart group of high school students listens.

Anderson Barn around sunrise

The monthly meeting of Fermilab's Ecological Land Management Committee, led by Ryan Campbell, in Wilson Hall room One East. The ELM Committee recommends "management practices based on sound ecological principles that enhance the natural resources of the laboratory."

This picture shows the Muon Campus Delivery Ring, bottom right, and the M4 extraction beamline, top right. The Delivery Ring will serve the lab's two flagship muon experiments - Muon g-2 (read "'G' minus two") and Mu2e (read "mu to e"). Like many things here at Fermilab, the Delivery Ring is a repurposed machine. It originally served as part of Fermilab's Antiproton Source, which made antiprotons for the Tevatron collider experiments. The Muon Campus is currently under construction, with mechanical technicians installing magnets, beam pipe, and making water connections. Instrumentation technicians are installing beam diagnostics. Electronics technicians are connecting magnets to power supplies in the service buildings above. The plan is to commission beam to the Muon Campus later this spring, so there is much to do!

This resistor was very recently removed from its home in the modulator cabinet for Main Injector's RF station #7. It is one of three that failed on the previous night's shift, bringing the high energy physics program to a momentary halt. Carbon ash is all that is left of the other two.

The sun sets over Wilson Hall

On the way home, I look back at Wilson Hall.

Sunset through the trees along B Road

SiDet is a facility for building scientific detectors at Fermilab. The building topped by a geodesic dome originally served as the assembly building for the 15-foot hydrogen bubble chamber.

This is one of 12 power supplies used to provide electric current to the Main Injector bend magnets. As protons accelerate in the Main Injector, their energy changes from 8 GeV to 120 GeV in less than one second. 1 GeV equals 1 billion electronvolts. The bend magnet current needs to increase in order to make a magnetic field strong enough to keep the beam circulating in a controlled manner. The electric current in the magnet ramps from a few hundred amperes to more than 7,000 amperes as a function of increasing beam energy.

Experts worked tirelessly from early morning to afternoon swapping parts and checking readings to fix Linac's drift tube RF station no. 2 in the Linac Upper Gallery. Bill Pellico breathed a sigh of relief when they finally got the signal they were looking for, which was followed by much rejoicing from experimenters.

Who's sporting that bristly smile?

The east facing windows of the prairie-style Cryomodule Test Facility reflect the sunrise on a rare cloudless January morning.