 | Monday, December 15, 2003 |
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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 |
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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 |
 Cloudy 41º/38º
Extended Forecast |
Secon Level 3 |
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Recycler Report from Sergei Nagaitsev and
Cons Gattuso | ||
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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.
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DZero's Alan Stone Wraps His Office Up for the Holidays | ||
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| 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. | ||
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Local Eagle Scout Gives Interpretive Trail Signs a Fresh Look | ||
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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.
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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 |
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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 |
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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
Budker Seminar Tomorrow
Fermi Singers Debut Off Site
Scottish Country Dancing |
