Have a safe day!
Friday, July 29
DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
Joint Experimental-Theoretical Physics Seminar - One West
Speakers: Andrew Askew, Florida State University
Title: Recent Results on BSM Searches at CMS
Monday, August 1
PARTICLE ASTROPHYSICS SEMINARS WILL RESUME IN THE FALL
DIRECTOR'S COFFEE BREAK - 2nd Flr X-Over
All Experimenters' Meeting - Curia II
Budker Seminar - Users' Center Music Room
Speakers: Cole Cook, Andrew Davies, Keren Li, Sarah Pfluger, Hexuan ‘April’ Wang, Fermilab
Title: Lee Teng Internship Projects
Click here for NALCAL,
a weekly calendar with links to additional information.
Friday, July 22
- Breakfast: Chorizo burrito
- New England clam chowder
- Carolina burger
- Tuna casserole
- Smart cuisine: Dijon meatballs over noodles
- Bistro chicken & provolone panini
- Assorted sliced pizza
- *Carved top round of beef
Wilson Hall Cafe Menu
Friday, July 29
Guest Chef Mike Syphers
- Italian grill night
- Lobster avocado salad w/ garlic pretzel knots
- Grilled, brined pork chops stuffed w/ prosciutto & fontina
- Mushroom risotto
- Grilled asparagus w/ shaved parmigiano-reggiano cheese
- White chocolate toasted almond cheesecake w/ fresh raspberry coulis
Wednesday, August 3
- Smoky bacon, blue cheese & chicken-stuffed pitas
- Apple walnut salad
- Lemon blueberry pound cake
Chez Leon Menu
Call x3524 to make your reservation.
Fermilab's SiDet Facility aides PHENIX detector upgrade
One of the hundreds of forward silicon vertex tracker (FVTX) components assembled at Fermilab's Silicon Detector Facility. Photo: Vassili Papavassiliou, New Mexico State University
PHENIX, one of two major experiments located at the Relativistic Heavy Ion Collider (RHIC) based at Brookhaven National Laboratory, is upgrading again with help from Fermilab's Slicon Detector Facility (SiDet). Fermilab technicians finished assembling hundreds of forward silicon vertex tracker (FVTX) detector components in early July.
The wedge-shaped components will be installed in PHENIX to help scientists study the properties of quark gluon plasma (QGP), which theorists believe made up the universe moments after the Big Bang.
Eric Mannel, a physicist from Columbia University and one of about 450 PHENIX contributors, worked as an electronics project engineer overseeing the final stages of assembly at Fermilab.
“We want to understand how the universe evolved the way it did from the very beginning,” Mannel said. “The FVTX detector will provide a higher resolution for tracking of particles which will allow us to study the properties of QGP.”
QGP is a near-perfect liquid composed of disassociated quarks and gluons suspended in plasma. It is said to be nearly perfect because it contains almost no internal friction—if you were to stir the plasma, it would continue to swirl forever. Physicists create QGP by smashing heavy ions and protons together. SiDet personnel provided a technical capabilities unique to Fermilab, to construct detectors that will allow physicists to study those collisions in more detail than ever before.
“We anticipate that we’ll be able to reconstruct secondary vertices from the decay of charm and beauty quarks with a resolution of 70 microns. The typical decay lengths for those particles are several hundred microns in heavy-ion collisions at RHIC,” Mannel said. The average human hair is about 100 microns thick.
AAron Veicht, a Ph.D. student at Columbia University, spent nearly 10 months working with the technicians at SiDet and will be part of the team installing the detector in PHENIX this fall.
“I’ll get to see the project from the very early stages all the way through to analyzing the data, so it’s very exciting,” Veicht said.
- Ashley WennersHerron
Siren maintenance - Aug. 1
The Fermilab sirens will undergo annual maintenance on Monday, Aug. 1. Testing will begin around 9 a.m. Sirens will be serviced one at a time, and the process will take about one hour to complete. Each service will conclude with a brief sounding of the siren. However, if there is the potential for severe weather later in the day, the sirens will not sound during the maintenance service. Please be aware that the normal monthly siren test will still take place on Tuesday, Aug. 2.
New Fermilab email project to reduce spam
As part of the email modernization project, the laboratory will switch to a new anti-virus and anti-spam filtering system on Tuesday, Aug. 2.
The new service will dramatically increase the accuracy of identifying and eliminating spam email and significantly decrease the false-positive (valid email identified as spam) rate. The service promises a capture rate of over 99 percent for spam and no more than 0.0003 percent false-positives.
The Computing Sector expects that email users will no longer receive messages that are identified as spam or that contain a virus. However, we encourage you to continue to use caution. Do not open attachments unless you are sure they are safe, and do not automatically assume that an email is from who it appears to be from. In the rare event that either spam is sent to your inbox or that you believe valid email has been identified as spam, you can fill out a form on the spam and anti-virus page linked below that will generate a Service Desk ticket. Email identified as spam will be quarantined and retained for 14 days before it is permanently removed.
Due to the increased accuracy we expect from our anti-virus/anti-spam filtering service, we recommend that you do not use your email client's built-in "This is spam/junk" function to tag or filter email. In the very rare case that you do receive spam, please use the form at the link below to report it, thereby helping improve the filters for everyone.
See the spam and anti-virus page for more information.
—Marcia Teckenbrock, computing outreach and communication
Pushing the limits with high-voltage electron guns
From ILC NewsLine July 21, 2011
Jefferson Lab’s electron gun group explores new designs for spin-polarised photoelectron guns.
Opposites attract and like charges repel. This simple phenomenon explains why electron beams spread out over space and time, much to the dismay of physicists who need tight particle beams for collision experiments.
To counter this phenomenon, known as space charge-induced emittance growth, the electron gun group at Jefferson Lab in the US is pushing the limits of high-voltage electron guns with new and improved designs.
This work is motivated and funded by the International Linear Collider R&D programme, the goal of which is to develop a 140-kilovolt (kV) electron gun to produce spin-polarised electron beams.
“The more energy you give the electron beam from the start, the stiffer the beam becomes,” said Matt Poelker, leader of Jefferson Lab’s Electron Gun Group. “The space charge forces that frustrate us get smaller and the beam is much more manageable.”
IB3 addition plaque ceremony
On July 27, representatives from Fermilab's Directorate, the DOE Fermi Site Office, FESS, TD and contractor A.J. Maggio Co. celebrated the completion of the IB3 addition with the dedication of a plaque. The IB3 addition, which will house Fermilab's new materials laboratory, was a project completed with funding from the American Recovery and Reinvestment Act. Photo: Cindy Arnold
August wellness offerings, pool information, fitness classes and discounts
This month, the Wellness Office will sponsor the following free events:
- Lunch & Learn: Migraines and Cluster Headaches on Wednesday, Aug. 24, in WH2W, Curia II from noon to 1 p.m.
- Qigong, Mindfulness & Tai Chi Easy® for Stress Reduction classes from 7 to 8 a.m. on Wednesdays in Ramsey Auditorium; and from noon to 12:45 p.m. on Fridays in Ramsey Auditorium
Information about the Fermilab swimming pool:
- Daily entry fee: $7 per person; $5 per person after 5 p.m.
- Pool hours: Tuesday through Friday from noon to 7 p.m.; Saturday and Sunday from 1 to 6 p.m.; closed Mondays. Pool will be open through Sunday, Aug. 21.
The Wellness Office will sponsor the following fitness classes:
- Kyuki-Do martial arts: 5 to 6 p.m. on Mondays and Wednesdays, Aug. 15 through Sep. 21 at the gym. Fee: $55 per person.
- Yoga: 12 to 1 p.m. on Tuesdays, Aug. 23 through Oct. 11 in Ramsey Auditorium. Fee: $85 per person.
- Open basketball: 11:30 a.m. to 1 p.m. on Mondays, Tuesdays and Thursdays and from 6 to 8 p.m. on Thursday evenings at the gym. Membership to the gym is required.
- Ultimate frisbee: 5 p.m. on Mondays and Wednesdays at the Village soccer field. For more information contact Joe Haley at firstname.lastname@example.org
- Open badminton:11a.m.to 1 p.m. on Wednesdays and 4 to 6 p.m. on Fridays at the gym. Membership to the gym is required. For more information contact Aaron Chou at email@example.com
- Open volleyball: 6 to 8 p.m. on Thursdays, from 11 a.m. to 1 p.m. on Fridays and from 10 a.m. to 1 p.m. on Saturdays at the gym. Membership to the gym is required.
- Chicago Fire, Six Flags Great America, Raging Waves, GiftTree.com, Jazzercise, AMC/Regal/Goodrich movie tickets, Great Wolf Lodge and Rosati’s of Batavia.
- More information can be found online.
Exterior and interior window washing - Aug. 1 to Aug. 19
Employees should take care when walking outside of Wilson Hall starting Monday, Aug. 1 through Friday, Aug. 5. Workers will wash the exterior windows during those workdays. Starting on Monday, Aug. 8, employees should remove any signs or decorations on the glass surfaces in their offices. Workers will clean interior glass, including windows and dividers, between Aug. 8 and Aug. 17. They will clean atrium glass on Aug. 18 and 19. Please be aware that you may be asked to briefly leave your desk during the cleaning process.