Fermilab TodayTuesday, December 9, 2003  
Tuesday, December 9
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Accelerator Physics and Technology Seminar - 1 West
Speaker: N. Eddy, University of Illinois
Title: Track Triggers in Run II CDF Trigger System

Wednesday, December 10
3:30 p.m. DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
4:00 p.m. Fermilab Colloquium - 1 West
Speaker: J. Campbell, University of Canterbury
Title: Rutherford, Maestro of the Atom

Tuesday, December 9
Potato Cheese soup
Homemade shepherds pie $3.50
Create your own stir fry! Choice of meats and or vegetables w/one of our stir fry sauces served on a bed of steamed jasmine rice $4.75
Oven roasted roma tomato w/fresh mozzarella, basil and balsamic vinaigarette on tomato herb foccaccia $4.75
Seared pork carnitas w/carmelized onion and cheese on a grilled sourdough baguette $4.75

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Chez Leon
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Beams Division Renamed
Roger Dixon
Roger Dixon
In response to a request by Roger Dixon, Head of the Beams Division, Director Mike Witherell has changed the name of the Beams Division to the Accelerator Division. "I agree that the new name conveys the nature of the organization more effectively, especially to the outside world," said Witherell. The new name is already in effect.

News from the Users Executive Committee
Sharon Hagopian
Sharon Hagopion,
UEC Chair
The Fermilab Users Executive Committee met on November 22. Director Mike Witherell talked to the UEC about the status of the laboratory. The UEC learned that approximately 250 people worked in the tunnels during the shutdown. The biggest success so far was the reduction in the emittance in the recycler. Witherell also mentioned recent reviews of the accelerator, BTeV and NuMI/MINOS and discussed the DOE 20 year Science Facilities Plan.

A number of other people also presented at the UEC meeting. Leslie Groer, of DZero and a UEC member, reported on a meeting at BNL on Visa Issues. Elliot McCrory, of the Beams Division, presented a phenomenological model of Tevatron Operations. Jean Slaughter, of the Beams Division, talked to us about how experimenters can help improve accelerator performance. Judy Jackson, of Public Affairs, talked about Fermilab publications and Interactions.org, a new international web site for HEP communications. The full minutes of the meeting are available online.

In the News
From the Interactions News Wire, December 8, 2003
LC Steering Committee Issues Charge to Technology Recommendation Panel
The International Linear Collider Steering Committee has published the charge to the International Technology Recommendation Panel appointed by the International Committee for Future Accelerators. The Panel, whose 12 members were announced on November 20, is charged with recommending which of two leading accelerating technologies will form the best choice for a future international linear collider. A technology decision is required in order to commence an international design for the future accelerator.
read more

From Physics News Update, December 3, 2003
The Top Physics Stories of 2003
The first three on our list concern the sharpening of our understanding of the big bang era, evidence for new quark groupings, and progress in manipulating quantum gases. At the largest size scale, new observations from the Wilkinson Microwave Anisotropy Probe (WMAP), the Sloan Digital Survey and other telescopes have reduced the uncertainties in the values of such cosmic parameters as the Hubble constant, the age of the universe, and the fractions of total energy vested in the form of dark and luminous matter (PNU #624; 659).
read more

Director's Corner
Good Morning!
Mike Witherell
The startup of Tevatron operations, which got off to a very good start, suffered its first major unscheduled shutdown last week. As you can read in the Accelerator Update, a large quench damaged a cryogenic element in the Tevatron that will require a warm-up of the sector to repair, an operation that will take a week to ten days.

What happens after such an event? A large number of people from around the Accelerator Division (formerly known as the Beams Division) devise a plan to accomplish the repair quickly and carefully and to make best use of the unscheduled shutdown. Accelerator experts conduct an investigation into the series of events to understand how to prevent this particular incident but also to see whether one can abort the beam in a more controlled way when something like this occurs. All of the AD departments and the running experiments turn in work lists for maintenance and repair jobs that require beam to be off. The operations department decides which work to do this week to take best advantage of the unscheduled shutdown. Later in the week, accelerator studies will be done in the unaffected tunnels, getting work done that would otherwise require a pause in accelerator operations later.

Meanwhile, progress continues in other parts of the accelerator complex. Experts tuning the Booster were able to improve the proton intensities for collider operation and for MiniBoone to the levels achieved before the major changes made during the annual shutdown. Tuning of the Antiproton Source restored a good rate for collecting antiprotons. Some of those antiprotons were successfully transferred to the Recycler and stored there with excellent lifetime, confirming the good news about the results of the massive amount of work done on the Recycler during the ten-week shutdown.

We are losing a week of operations this week, something that happens a few times per year. The accelerator experts will be improving performance in the weeks to come as they convert their improved understanding of the accelerators into higher luminosity and steadier operation.

Accelerator Update
December 5 - December 8
- Switchyard received permission to receive beam.
- The Tevatron suffered a sixteen-house quench.
- Related cryogenic problems shuts down the Tevatron for a week to ten days.

View the current accelerator update
View the Tevatron Luminosity Charts

Form W-4
Have you purchased, sold or refinanced your home, married, divorced, or had a new addition to the family? These are just some of the reasons why you may wish to provide payroll with a new W-4 exemptions form for 2004. These forms are available in the Payroll Department, or at the IRS web site; or go to the Business Services - Accounting Web page and use the Federal Forms Link.

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