Monday, June 18, 2012

Have a safe day!

Monday, June 18
3:30 p.m.



Tuesday, June 19
Undergraduate Lecture Series - One West
Speaker: André de Gouvêa, Fermilab
Tilte: The Intensity Frontier
3:30 p.m.
4 p.m.
Accelerator Physics and Technology Seminar (NOTE LOCATION) - Curia II
Speaker: Sampriti Bhattacharyya, Ohio State University
Title: Reliability and Controls for Project X and Applications to Accelerator-Driven Systems

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Wilson Hall Cafe

Monday, June 18

- Breakfast: Croissant sandwich
- Italian minestrone soup
- Patty melt
- Chicken cordon bleu
- Smart cuisine: herbed pot roast
- Garden roast beef wrap
- Assorted sliced pizza
- Smart cuisine: Szechuan green beans w/ chicken

Wilson Hall Cafe Menu

Chez Leon

Wednesday, June 20
- Pork satay w/ peanut sauce
- Asian noodles
- Sautéed pea pods
- Rice pudding

Friday, June 22

Chez Leon Menu
Call x3524 to make your reservation.


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In Brief

DASTOW starts 8:30 a.m., Wednesday, June 20, features helicopter airlift

A helicopter brings excitement to DASTOW 2010. Photo: Reidar Hahn

If you see a helicopter hovering over the Fermilab Fire Department Wednesday morning, don't fret. It's all according to plan.

The helicopter is part of a fire rescue demonstration, a highlight of Fermilab's Daughters and Sons to Work Day, which takes place this Wednesday, June 20.

The DASTOW group photo will be taken promptly at 8:30 a.m. After a morning safety message and Mr. Freeze's Cryogenics Show in Ramsey Auditorium, kids will board buses to watch the fire rescue demonstration, which starts at 10:45 a.m. The demo involves a simulated car accident in which a passenger is trapped and requires a medical airlift. Kids will be able to take a close look at the helicopter and a fire engine afterward.

After lunch in the Wilson Hall Atrium, kids will watch the FUNdamentals of Physics Show in Ramsey Auditorium, visit the bison, and finally return to Wilson Hall at 2:45 p.m.

More information is available at the DASTOW website.


NOvA target arrives from Rutherford Appleton Laboratory

Rutherford Appleton Laboratory engineer Michael Fitton looks through the chamber housing the NOvA target, which comprises 48 small, upright graphite fins lined up in a row. Photo: Stephen Kill

Engineers at Rutherford Appleton Laboratory in the UK recently completed the manufacture of the target for Fermilab's future NOvA experiment. The target, which arrived at Fermilab last month, is the outcome of 18 months of collaboration between the two laboratories and UK industry.

It's also designed to be one of the world's toughest production targets for a neutrino experiment.

"It's the highest pulsed-power-density neutrino target that will see action in the world to date," said Fermilab's Patrick Hurh, who coordinated the accord for the NOvA target.

The target is designed to take on a 700-kilowatt beam of protons, roughly 10 times more power than was used for the Tevatron's antiproton source target. When protons strike the NOvA target, they'll generate particles that decay into neutrinos, which will then fly straight through the earth to a detector 500 miles away in Ash River, Minn.

Researchers constructed the target from graphite, a material strong enough at high temperatures to withstand the stress of the high proton-beam power.

Though Fermilab had previously established most of the specifications for the target design, they turned to RAL to fill in the details. Having designed and manufactured a similar target for the T2K experiment in Japan, RAL was the only laboratory in the world to have built a neutrino target to withstand an amount of beam power similar to that needed for NOvA.

"After working with Patrick and colleagues over recent years on design studies for LBNE and Mu2e, it was rewarding for Rutherford Appleton to be able to deliver a piece of real hardware to Fermilab," said Chris Densham, who leads the High-Power Targets Group at RAL. "The NOvA target requirements were demanding, but with some development work we made one that performed well inside the specification."

The Fermilab team is now testing alignment, meticulously recreating the mechanics of every part involved in the positioning and stability of the beam and target. As Target Lead Engineer Mike McGee notes, once the target and its associated structures are underground, there's no going back in.

"Imagine the moment that we close off this target," he said. "We'll never have a line of sight to the target again."

The experiment will begin producing neutrino beams in 2013, and researchers have RAL to thank for the element that helps make them.

"They're like an extension of my group here at the lab. I can call them up and get answers," Hurh said. "I'm proud of the work they did, and I know they're proud of it."

—Leah Hesla

In the News

Why won't the supernova explode?

From Science@NASA, June 15, 2012

Somewhere in the Milky Way, a massive old star is about to die a spectacular death. As its nuclear fuel runs out, the star begins to collapse under its own tremendous weight. Crushing pressure triggers new nuclear reactions, setting the stage for a terrifying blast. And then... nothing happens.

At least that's what supercomputers have been telling astrophysicists for decades. Many of the best computer models of supernovas fail to produce an explosion. At the end of the simulation, gravity wins the day and the star simply collapses.

Clearly, physicists are missing something.

Read more

Tip of the Week:

Use your head: Take care of your hard hat

ES&H Section Head Nancy Grossman sets an example by wearing a hard hat that meets standards.

Is it time for a new hard hat? There is a common misconception that hard hats last forever. OSHA does not specify the service life of a hard hat, nor is there any standard expiration time frame for hard hats. The hard hat life span varies depending on its use and the conditions under which it's worn.

As a general guideline, most hard hat manufacturers recommend replacing them every five years regardless of outside appearance. If you work under extreme conditions such as exposure to high temperatures, chemicals or long periods in sunlight, hard hats should be replaced after two years of use. In addition, some manufacturers even recommend replacing the suspension in your hard hat every 12 months. Since the main purpose of a hard hat is to protect your head, it's important for you to inspect and replace hard hats on a regular basis. Here are some tips when it comes to wearing hard hats:

  • Wear it – Hard hats can't do their job if they are not worn.
  • Inspect it – Inspect your hard hat before you wear it. Make sure there are no cracks, dents or tears.
  • Maintain it – Clean the hat and suspension with soap and water. Store your hard hat in a cool place away from direct sunlight.
  • Replace it - Hard hats are designed to protect you only once. If your hard hat has been damaged, replace it.
  • Recycle it - Hard hats can be recycled in the recycling bins around the lab.

All hard hats should be ANSI-Z89.1-approved, which means that they meet or exceed either Type I or Type II impact requirements. Any stickers placed on hard hats should follow OSHA recommendations, which state that they should be positioned three-quarters of an inch from the edge and should be small enough that they do not hide damage to the hat. For more information on hard hats, see FESHM Chapter 5101 Appendix F or talk to your supervisor or senior safety officer.

Hard hats are a stock item here at Fermilab. To order, log on to the Employee Self Service page using your services username and password, click on Stock Catalog in the left sidebar and enter the stock number. The stock number for white hats is 2650 150100. The stock number for yellow hats is 2650 150200.

—J.B. Dawson

Photos of the Day

The moths of Ash River, Minn.

Colorful moths rest on ledges and gratings in Ash River, Minn., home of the NOvA far detector. From top: cecropia silkmoth, luna moths and rosy maple moth. Photos: Richard Tesarek, PPD

Heartland Blood Drive - today

Budker Seminar - today

Scottish country dancing moves to Auditorium - June 19

Video series on six different world religions - starts June 19

DreamWeaver CS5: Intro class - June 19-20

DASTOW - June 20

Intermediate/advanced Python programming class - June 20-22

NALWO luncheon/tour at Cantigny - June 21

Fermilab prairie quadrat study - begins June 26

After-hours shuttle trial extended through June

Project Management Introduction class - July 23-27

Fermilab Management Practices Seminar - begins Oct. 4

Interpersonal communication skills training - Nov. 14

Outdoor soccer - Tuesdays and Thursdays at 6 p.m.

Pool memberships available

10,000 Steps-A-Day weekly participant winner

Employee discount for Father's Day at

Six Flags Great America discounts

Employee offer at Pockets

Dragon II restaurant employee discount

Changarro restaurant offers 15 percent discount to employees

Atrium construction updates