Jefferson Lab Weekly Briefs November 20, 2013
Jefferson Lab Weekly Briefs
November 20, 2013
Extra Hands Needed For Tunnel Housekeeping
Anyone that can spare this block of time for one morning or more is asked to contact Harry Fanning, x7619. If you aren't Radiation Worker and Oxygen Deficiency Hazard trained, you can still sign up and be escorted. Everyone participating in this effort must wear flat- or low-heeled, closed-toe shoes, long pants and a short- or long-sleeved shirt (wear comfortable clothing as it can get warm in the tunnel). Volunteers with Radiation Worker and ODH training must wear their personal dosimeters. For staff members that don't normally get into the tunnel, this is a great way to meet Jefferson Lab colleagues from outside your work area and to learn more about CEBAF. Pizza lunches will be available for volunteers at the end of the cleanup activities each day.
Jefferson Lab Published Articles, Nov. 4-8
Remember to submit your papers for approval to the Jefferson Lab Publications database. The next Publications Refresher Course will take place Monday, Dec. 9 at 9 a.m. in CEBAF Center room F226. To attend, R.S.V.P. to Kim Kindrew.
Center for Theoretical and Computational Physics
The possibility of measuring the parity-violating asymmetry in Møller scattering at Jefferson Lab with sufficient accuracy to determine the weak mixing angle to 0.1 percent offers a complementary path to the discovery of new physics to that followed at high energy colliders. A new calculation has just been performed of the γZ box contribution to parity-violating electron-proton scattering, which constitutes an important uncertainty in computing the background to this process. It shows that while the γZ correction grows rapidly with energy, it can be relatively well constrained by data from parity-violating inelastic scattering and parton distribution functions.
Mechanical engineering reports that the 12 GeV CEBAF Songsheets have been reviewed and updated to match what has been installed in the tunnel, as well as matching what is in the CEBAF Element Database. The songsheets are now in the approval process and will be released into the Document Repository. Engineering staff will communicate the updated method for retrieving the PDF versions of the songsheets once all the links are established.
JLab Calendar of Events
Nov. 20-23: CLAS Collaboration Meeting
Environment, Safety, Health and Quality
Safety Showers and Eyewash Stations
ESH&Q is often asked where and how far apart the eyewashes stations/showers should be located. There are various ANSI standards and federal regulations that detail the location (i.e. no more than 10 seconds or no more than 100 feet with an unobstructed walkway) from the hazard. Also, the prescribed volume of water and flow patterns must be checked, as well as the water temperature and cleanliness. Weekly checks are required, so thanks to the Safety Wardens who conduct these tests!
Eyewash stations and safety showers are designed to be easy to use - either push a flat panel for an eyewash or pull on a handle for a shower. Some locations are electronically monitored so that when activated, it notifies the guards and other responders. If you are ever splashed with a chemical, never hesitate to use an eyewash or shower; the difference may be saving your sight or your life.
JAG Dog Club Collects Food Donations through Friday, Nov. 22
Thanksgiving Warm-Up Buffet in the Quark Cafe
Order Thanksgiving Desserts from Quark Cafe by Nov. 22
Colloquium and Public Lecture Scheduled for Nov. 26
JAG Holiday Party for Jefferson Lab Children and the Young at Heart
Volunteers Needed to Help With the Holiday Party
Toys for Tots Toy Drive
Ready, Set, Hang Those Decorations
Tracking Thomas at Jefferson Lab
Richard Owen and Silvia Noccolai correctly guessed the location for Nov. 13. Honorable mentions go to Ron Bartek, Doug Higinbotham and Marcy Stutzman. Check out Tracking Thomas on flickr for a better view of his last location and this week's new mystery photo.
|JLab Weekly Briefs is an ongoing publication providing information on the status of safety, accelerator operations, experiments, free-electron laser, reviews, upcoming activities and special events. Deadline for submission is every Tuesday by 10 a.m. Submit new items to: Public Affairs or contact Kandice Carter at x7263.|