Wednesday, April 16, 2014

Have a safe day!

Wednesday, April 16

3:30 p.m.


5-7 p.m.
Artist reception - WH2XO
Artist: Edward Tufte
Exhibit: The Cognitive Art of Feynman Diagrams

Thursday, April 17

11 a.m.
Intensity Frontier Seminar Series - WH8XO
Speaker: Hogan Nguyen, Fermilab
Title: The Muon g-2 Experiment

3:30 p.m.

4 p.m.
Accelerator Physics and Technology Seminar - One West
Speaker: Tom Kobilarcik, Fermilab
Title: The Booster Neutrino Beamline

4 p.m.
LHC Physics Center Topic of the Week Seminar (NOTE DATE) - WH11NE
Speaker: Greg Landsberg, Brown University
Title: New Developments in Dark Matter Searches at Colliders

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a weekly calendar with links to additional information.

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Wilson Hall Cafe

Wednesday, April 16

- Breakfast: breakfast casserole
- Breakfast: ham, egg and cheese English muffin
- Italian sausage combo sandwich
- Smart cuisine: herbed pot roast
- Roasted turkey with dressing
- Turkey bacon panino
- Mongolian beef stir fry
- Chunky broccoli cheese soup
- Texas-style chili
- Assorted calzones

Wilson Hall Cafe menu

Chez Leon

Wednesday, April 16
- Pork satay with peanut sauce
- Jasmine rice
- Peapods
- Pineapple upside-down cake

Friday, April 18

Chez Leon menu
Call x3524 to make your reservation.


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From symmetry

Ten things you might not know about particle accelerators

From accelerators unexpectedly beneath your feet to a ferret that once cleaned accelerator components, symmetry shares some lesser-known facts about particle accelerators. Image: Sandbox Studio

The Large Hadron Collider at CERN laboratory has made its way into popular culture: Comedian John Stewart jokes about it on "The Daily Show," character Sheldon Cooper dreams about it on "The Big Bang Theory" and fictional villains steal fictional antimatter from it in Angels & Demons.

Despite their uptick in popularity, particle accelerators still have secrets to share. With input from scientists at laboratories and institutions worldwide, symmetry has compiled a list of 10 things you might not know about particle accelerators.

There are more than 30,000 accelerators in operation around the world.
Accelerators are all over the place, doing a variety of jobs. They may be best known for their role in particle physics research, but their other talents include: creating tumor-destroying beams to fight cancer; killing bacteria to prevent food-borne illnesses; developing better materials to produce more effective diapers and shrink wrap; and helping scientists improve fuel injection to make more efficient vehicles.

One of the longest modern buildings in the world was built for a particle accelerator.
Linear accelerators, or linacs for short, are designed to hurl a beam of particles in a straight line. In general, the longer the linac, the more powerful the particle punch. The linear accelerator at SLAC National Accelerator Laboratory, near San Francisco, is the largest on the planet.

SLAC's klystron gallery, a building that houses components that power the accelerator, sits atop the accelerator. It's one of the world's longest modern buildings. Overall, it's a little less than 2 miles long, a feature that prompts laboratory employees to hold an annual footrace around its perimeter.

Particle accelerators are the closest things we have to time machines, according to Stephen Hawking.
In 2010, physicist Stephen Hawking wrote an article for the UK paper the Daily Mail explaining how it might be possible to travel through time. We would just need a particle accelerator large enough to accelerate humans the way we accelerate particles, he said.

A person-accelerator with the capabilities of the Large Hadron Collider would move its passengers at close to the speed of light. Because of the effects of special relativity, a period of time that would appear to someone outside the machine to last several years would seem to the accelerating passengers to last only a few days. By the time they stepped off the LHC ride, they would be younger than the rest of us.

Hawking wasn't actually proposing we try to build such a machine. But he was pointing out a way that time travel already happens today. For example, particles called pi mesons are normally short-lived; they disintegrate after mere millionths of a second. But when they are accelerated to nearly the speed of light, their lifetimes expand dramatically. It seems that these particles are traveling in time, or at least experiencing time more slowly relative to other particles.

Read more

Sarah Witman

In the News

Dark matter may be destroying itself in Milky Way's core

From Scientific American, April 8, 2014

SAVANNAH, Ga. — Gamma rays shining from the center of the Milky Way could be the result of dark matter particles colliding, scientists say. If so, the signal, gleaned from NASA's Fermi space telescope, would mark the first-ever indirect detection of the particles that make dark matter, the stealthy and elusive substance that contributes most of the matter in the universe.

In theory, the amount of unseen dark matter far exceeds the regular matter in stars, galaxies and us, but it has been impossible to measure directly. Researchers have seen hints of a dark matter signal from Fermi before, but the new analysis provides the strongest case to date for a pattern that cannot be easily explained by other galactic activity. The signal, if it is from dark matter, would indicate a new type of subatomic particle, and possibly even a new force in the universe. "I would consider it currently the most exciting signal that we have that could actually be due to dark matter," physicist Rafael Lang of Purdue University, who was not involved in the study, said Saturday at the American Physical Society April meeting here.

Read more

From ESH&Q

Fermilab celebrates Arbor Day and Earth Day next week

Martha Michels

Martha Michels, head of the ESH&Q Section, wrote this column.

What does it really mean to be a good steward of the Earth? How about doing something as simple as planting a native tree or shrub?

Get involved this Arbor Day, Tuesday, April 22, with Fermilab Roads and Grounds and the Fermilab Natural Areas team to help enrich Mother Earth. Tree planting takes place from 11:30 a.m. to 1 p.m.

You can also get more great, green ideas at the labwide, ESH&Q Section-sponsored Earth Day Fair on Thursday, April 24, from 11:30 a.m. to 1 p.m. in the Wilson Hall atrium. Come celebrate with your co-workers, and perhaps win an ecological prize as you enjoy a snack or two.

Earth Day and Arbor Day both aim to create awareness and appreciation for the environment. They also encourage us to learn something new and to practice Earth-friendly habits at work and at home. Perhaps most importantly, they remind us to have fun and that it really is easy being green.

The following are a few of the Earth-friendly activities and laboratory organizations at this year's Earth Day Fair:

  • Visit the Fermilab Natural Areas table for information and brochures on taking care of the laboratory's natural beauty.
  • Take Five with the Traffic Safety Subcommittee, have a look at the new Take Five Poster, and learn about the benefits of carpooling and registering with GreenRide.
  • Learn about the green practices used by Clorica Management Corporation, which provides janitorial services at Fermilab.
  • Take home a CowPot and browse catalogs from the Fermilab Garden Club.
  • Learn about the environmentally friendly choices you can make when requesting products from the Fermilab Stockroom.

You can be sure to find something inspiring and helpful for you and the environment at the fair, organized by Anna Campbell. We hope it will encourage you to practice good stewardship of the Earth, which we all share.

Taxi service frequency will be increased during fair hours. Arrange taxis by calling x4225.

Photo of the Day

The darkness (re)lit

Pictured above are many types of galaxies captured by the Dark Energy Camera. At least five are easy to spot: the edge-on spiral on the right side, the pair of colliding spirals at the bottom center, a big spiral in the top-left and an elliptical on the far left. Read more in Dark Energy Detectives. Photo: Dark Energy Survey
Safety Update

ESH&Q weekly report, April 15

This week's safety report, compiled by the Fermilab ESH&Q Section, contains one incident.

An employee experienced low-back pain after placing a 55-pound vacuum pump into a box for shipping. He received first-aid treatment.

Find the full report here.


Today's New Announcements

Cross-step waltz workshop with dance historian in Kuhn Barn - April 19

Zumba Toning registration due April 22

Pre-retirement planning Lunch and Learn - April 23 and May 7

Fermilab Time and Labor (FTL) URLs changing

Edward Tufte artist reception - today

Service Desk Web interface upgrade - April 17

Earth Week Fair - April 24

On sale now: Fermilab Natural Areas hats and shirts

A Smart Cuisine purchase earns you 10 bonus points

2014 Fermilab Golf League season is upon us

Wednesday Walkers

Scottish country dancing meets Tuesday evenings at Kuhn Barn

International folk dancing meets Thursday evenings at Kuhn Barn

Indoor soccer