Fermilab TodayMonday, December 15, 2003  
Monday, December 15
2:30 p.m Theoretical Astrophysics Seminar - Curia II
Speaker: Z. Zheng, Ohio State University
Title: Constraining Galaxy Bias and Cosmology Using Galaxy Clustering Data
3:30 p.m DIRECTOR'S COFFEE BREAK 2nd Flr X-Over
4:00 p.m. All Experimenters' Meeting - Curia II
Special Topic: Auger

Tuesday, December 16
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Accelerator Physics and Technology Seminar - 1 West
Speaker: L. Wang, Brookhaven National Laboratory
Title: Mechanism of Electron Multipacting and Trapping

Monday, December 15
Triple mushroom beef stroganoff over egg noodles $3.50
Baked lemon pepper cod fillets with choice of 2 sides $4.75
Homemade tuna salad with roma tomato bacon and wild greens $4.75
Grilled chicken breast sandwich with portobella mushrooms and melted provolone cheese $4.75

Eurest Dining Center Weekly Menu
Chez Leon
Weather Cloudy 41º/38º

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Recycler Report from Sergei Nagaitsev and Cons Gattuso
A view of Fermilab's Recycler
The Recycler has completed several milestones since the end of the shutdown. Antiprotons were transferred from the Main Injector to the Recycler Ring with an efficiency of greater than 90%. The overall efficiency from the Accumulator to the Recycler has reached the 70% level. The emittance growth rate, which is how fast the size of the beam grows, has been measured to be 1.5 - 2 pi mm mr/hr. The cooling systems have been optimized and the beam lifetime has been measured to be greater than 400 hours, which is in line with design parameters. Prior to the latest shutdown, the best lifetime seen with cooled antiprotons was approximately 100 hours. The Recycler and Main Injector specialists were also able to extract cooled antiprotons back to the Main Injector with an efficiency of 95-100% level. Last night, another milestone was achieved by breaking the intensity record for stored antiprotons in the Recycler. The old record was 7.2 E11, and the new record is 12.2 E11.

This level of performance could not have been achieved without the hard work of individuals from all the divisions. Our gratitude goes out to everyone involved in this past shutdown.

DZero's Alan Stone Wraps His Office Up for the Holidays
Alan Stone's office
Alan Stone's decorated office
From the wrapping paper on the door to the dangling lights on the pipes, DZero's Alan Stone decorated his office from floor to ceiling - literally. Outside his office, a floormat wishes you "Seasons Greetings," and nutcrackers line the shelves. "I've seen many of my colleagues do a double-take as they walk by," Stone said.
Seasons Greetings
The floormat outside Alan Stone's office

Local Eagle Scout Gives Interpretive Trail Signs a Fresh Look
New Interpretive Trail sign
Eagle Scout Luke Finfrock in front of the freshly painted Interpretive Trail sign
Thanks to Eagle Scout Luke Finfrock of Troop 106 in Naperville, the Interpretive Trail signs have a fresh new look. Finfrock gave the aging signs a fresh coat of paint and hand-painted all of the white lettering on the signs. He also replaced the posts. Roads & Grounds appreciates his hard work and hopes that everyone will enjoy the new signs.

Accelerator Update
December 10 - December 12
- Tevatron conning towers replaced
- Studies and maintenance work during the Tevatron conning tower replacement continued

View the current accelerator update
View the Tevatron Luminosity Charts

In the News
From The University of Chicago Chronicle , December 11, 2003
Chicago instrument will advance study of high-energy cosmic rays
By Steve Koppes
Chicago scientists plan to launch an unmanned balloon into the highest reaches of the atmosphere over Antarctica this month to hunt for tiny particles from interstellar space called high-energy cosmic rays.
read more
NALWO Annual Winter Tea Today
NALWO's Annual Winter Tea is today from 10:00 a.m. to noon at Beth Witherell's house, site 29. For more information, contact Sue Mendelsohn at x5059 or Rose Moore at 208-9309.

Register for Cruisin' the Lab on 12/16
The next Cruisin' the Lab will be on Tuesday, December 16 featuring a tour of DZero. The tours are for employees, and they will be offered at 11:30 a.m., noon, 12:30 p.m. and 1:00 p.m. Groups are limited to 20 people. Transportation will be provided from Wilson Hall, but you may also drive yourself. Contact Nancy Lanning today to register.

Budker Seminar Tomorrow
The next Budker Seminar is December 16 in the Users' Center Music Room. Sergei Seletskiy will present his talk, "Electron Cooler at Fermilab." Pizza and drinks will be served at 6:00 p.m.

Fermi Singers Debut Off Site
Mark your calendars for the Fermi Singers debut off site! The singers will perform on Sunday, December 21, 2003 from 8:15 p.m. to 8:45 p.m. at the Naper Settlement. If you are interested in singing at the concert, please contact Anne Heavey

Scottish Country Dancing
Scottish Country Dancing will be held at 7:30 p.m., Tuesday, December 16, at the Geneva American Legion Post. Newcomers are always welcome. Call 630-584-0825 or 630-840-8194 for more information.

Fermilab Today