Fermilab Today Tuesday, August 30, 2005  
Tuesday, August 30
3:30 p.m. Director's Coffee Break -
2nd Flr X-Over
Note: There will be no Accelerator Physics and Technology Seminar today

Wednesday, August 31
11:00 a.m. Fermilab ILC R&D Meeting -
1 West
Speaker: S. Mishra, Fermilab
Title: Summary of the Snowmass Accelerator Workshop
3:30 p.m. Director's Coffee Break -
2nd Flr X-Over
4:00 p.m. Fermilab Colloquium -
1 West
Speaker: S. Long, University of Illinois, Urbana-Champaign
Title: The Direct Effects of Atmospheric Change on Vegetation - From Gene Expression to Crop Production in the Field

WeatherPartly Cloudy  81º/60º

Extended Forecast

Weather at Fermilab


Secon Level 3

Tuesday, August 30
- Chicken & Rice Soup
- Mushroom Swiss Burger
- Baked Meatloaf with a Roasted Tomato Demi-Glace
- Parmesan Baked Fish
- Peppered Beef
- Ham & Pastrami Calzones
- South of the Border Burritos with Chips & Queso

The Wilson Hall Cafe now accepts Visa, Master Card, Discover and American Express at Cash Register #1.

Wilson Hall Cafe Menu

Wednesday, August 31
Grilled Duck Salad with Green Beans
Pear Almond Strudel

Thursday, September 1
Grilled Scampi
Orzo with Arugula and Parmesan

Chez Leon Menu
Call x4512 to make your reservation.

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Water from Village Lakes Keeps Tevatron Running
Deborah Koolbeck
The summer drought has dried up Fermilab's A.E. Sea (Click on image for larger version.)
Most people familiar with the engineering of the Tevatron know that water cools the accelerator, but few know just how much. According to Steve Krstulovich, an engineer with FESS services, more than 40 million gallons evaporate from the Main Injector and Tevatron's ring waterways and other cooling ponds each month due to the accelerator's heat and the sun's rays. That's the equivalent of 60 Olympic-sized swimming pools!

The ring ponds are a vital part of the Main Injector and Tevatron, dispersing heat into the air as water evaporates. But if these ponds become shallow their temperature creeps upward, stressing equipment and causing the accelerator to run less efficiently. "In turn, the accelerator requires more power and gives off more heat, increasing evaporation and making the water level drop even further," said Krstulovich.

Keeping enough water in the Main Injector/Tevatron ring waterways has been especially difficult this summer because of the drought conditions. Precipitation is the main water source for the ponds, and with normal rainfall, FESS can usually keep the waterways full with some additional water pumped from the nearby Fox River and from NuMI's underground experimental hall sump discharge. But because this year's drought has been so extreme, Fermilab hasn't been able to recharge its ponds with rain, and pumping from the Fox has been severely limited by low river flow. This has left the site with a water deficit it must manage through spring of 2006.
Read More

A Successful Workshop - Snowmass Organizers Express Appreciation
Secretariat and Computer staff
Snowmass secretariat and computing support. (Click on image for larger version.)
Now that the two-week Snowmass Workshop is over, the organizers, Ed Berger, of Argonne National Laboratory, Uriel Nauenberg, of the University of Colorado at Boulder, Jim Brau of the University of Oregon, and Mark Oreglia of the University of Chicago, are breathing a sigh of relief. From getting funding to reserving conference rooms to writing letters of invitation for foreign participants in the middle of the night, the organizers made every effort for a successful outcome. "The workshop was scientifically very productive," said Berger. "The attitudes of all the participants and conveners were great. Everyone came committed to getting the job done."
Read More

In the News
From Interactions.org, August 29, 2005
Finding a Way to Test for Dark Energy

Theorists show how satellite searches can distinguish among dark energy scenarios.

What is the mysterious dark energy that's causing the expansion of the universe to accelerate? Is it some form of Einstein's famous cosmological constant, or is it an exotic repulsive force, dubbed "quintessence," that could make up as much as three-quarters of the cosmos? Scientists from Lawrence Berkeley National Laboratory (Berkeley Lab) and Dartmouth College believe there is a way to find out.
Read More

Director's Corner
Après Snowmass
Pier Oddone
Pier Oddone
At the end of the Snowmass proceedings on the International Linear Collider, we all shared the sense that the workshop had produced results beyond expectations. Many of the working groups reached consensus on their recommendations for the ILC baseline configuration.

Because we will be building this machine several years after the initial baseline configuration, a mechanism to allow evolution is absolutely necessary if the machine is to be "modern" when we finally build it. So in areas where we expect improvements, the working groups made recommendations for alternate configurations. While these alternate choices promise either technical improvements or cost savings, they also require additional R&D before they can replace the choices made for the initial baseline configuration.

By the end of this year the Global Design Effort under Barry Barish's direction will place the baseline design under a "change control" mechanism to allow for disciplined changes of the design. This will be a novel application of "change control" since it will be done so early in the design phase of the project.

Of course much work remains. Recommendations for some of the very difficult technical choices, such as one tunnel vs. two tunnels, or the choice of the damping ring design, remain to be made even after a huge amount of discussion. But recommendations on many other difficult choices, including the accelerating gradient, the luminosity parameters, the method for producing positrons and the IR configuration, have now been given to the GDE.

The achievements at Snowmass bode well both for reaching an agreement on the baseline configuration by the end of this year and a reference design and cost estimate by the end of 2006. The 80 participants from Fermilab made significant contributions to the results of the workshop across a broad front that included accelerators, detectors, theory, communication and public outreach. I offer my personal thanks to each of them for their efforts.

There was a mistake in yesterday's story about West Nile virus. It states: "Recently, we recorded the first instance of a mosquito testing positive for the virus at Fermilab." Actually, we had 2 positive test results from mosquito samples last year.
Open Enrollment for the
Life Insurance Plan

The open enrollment period ends on Monday, September 12, 2005. The open enrollment form must be in by 5:00 P.M on September 12, 2005. You can access further information on the Web.

Power Outage
The power will be cut to Labs A, B, C, D, E, and F from 8:30 AM - 4:30 PM on Saturday, September 3, 2005.

Fermilab Health Fair
The Fermilab Health Fair, complete with demonstrations, screenings, and health information, will take place on Thursday, September 8 from 11:00 p.m. until 2:00 p.m.

Upcoming classes
September 12 & 13: Word Intro & PowerPoint Intro
September 27: Excel Intermediate
September 28: Word Intermediate
October 11: Excel Advanced
October 12: Word Advanced
October 11 & 26: Interpersonal Communication Skills
More Information

Scottish Country Dancing
Scottish Country Dancing will meet Tuesday, Aug. 30, in Ramsey Auditorium in Wilson Hall. Instruction begins at 7:30 p.m. and newcomers are always welcome. Most dances are fully taught and walked through, and you do not need to come with a partner. You can also see this group and try out the dancing at the Fox Valley Folk Festival, on Monday, Sept. 5, at Island Park in Geneva. Tuesday evening dancing will continue in the Auditorium until Sept. 13, when it will return to Kuhn Barn. Info at 630-840-8194 or 630-584-0825 or folkdance@fnal.gov.

International Folk Dancing
International Folk Dancing will meet Thursday, Sept. 1, in Ramsey Auditorium in Wilson Hall. Dancing begins at 7:30 p.m. with teaching earlier in the evening and request dancing later on. Newcomers are welcome and you do not need to come with a partner. There will be international folk dancing taught to live music at the Fox Valley Folk Festival on Sunday, Sept. 4, at Island Park in Geneva. Thursday evening dancing dancing will continue in the Auditorium next week, and return to Kuhn Barn Sept. 15. Info at 630-584-0825 or 630-840-8194 or folkdance@fnal.gov.

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