Jefferson Lab Weekly Briefs
September 24, 2014
12 GeV Upgrade
The voltage-tracking regulators for the extraction YA’s are operational, and control screens have been implemented. This completes the scope for the 12 GeV Project power systems. The scope for the 12 GeV Project safety systems has also been completed. The magnets for the fast-feedback system for the Hall D beamline have been installed, and the first of the nano-Amp beam position monitors for the Hall D beamline has been installed.
Jefferson Lab Published Journal Articles, September 15-19
Remember to submit your papers for approval to the Jefferson Lab Publications database.
Publications Refresher Course Offered Oct. 1
AIP Seeks Applicants for State Department Fellowship
The American Institute of Physics (AIP) is now seeking applicants for its 2015-2016 State Department Science Fellowship. The application deadline is Nov. 3. Issues involving S&T are an important part of America’s diplomatic portfolio, making it essential for the U.S. Department of State to have knowledgeable scientific input. Through its State Department Science Fellowship program, AIP offers an opportunity for scientists to make a unique and substantial contribution to the foreign policy process. Qualified scientists at any stage of their career are encouraged to apply. Applicants must be U.S. citizens, have a Ph.D. in physics or a closely related field, be members of one or more of AIP’s Member Societies and be eligible to receive an appropriate security clearance. For information on AIP’s Fellowship program qualifications and application instructions, visit the website.
Center for Theoretical and Computational Physics
A new lattice QCD analysis calculates the masses of baryons containing one, two or three heavy quarks. All possible combinations of charm and bottom quarks are considered, and a total of 36 different states with JP = 1/2+ and JP = 3/2+ are included. The analysis includes results from two different lattice spacings and seven different pion masses, which allows one to control the extrapolations to both the continuum and chiral limits.
The Machine Shop is presently manufacturing or continuing to manufacture:
Additionally, various small machining jobs were undertaken for many lab customers.
Jefferson Lab Calendar of Events
Environment, Safety, Health and Quality
Some feedback from workers indicate that there is a sign or information overload, as well as the mental condition of "I've been through here hundreds of times, I know what is there." With the accelerator and the experimental halls coming back into operation and other work spaces changing to support the accelerator or experiments, it is again good practice to take the extra few seconds to re-read the signs wherever you are entering. Radiation levels may have increased, Oxygen Deficiency Hazard environments may have been created, or maybe that door no longer leads to the outside.
When you go home tonight, just count all the signs you pass; you'll be amazed at the total. And then tomorrow, stop and read all the signs in your travels around Jefferson Lab. What have you been missing?
Hall D and Accelerator Service Buildings Radiological Status Changes
Please note that the radiological status of Hall D has changed. The hall is now posted as a Radiologically Controlled Area (RCA) and Radioactive Materials Area (RMA). For unescorted access to the area, personnel must have Radiation Worker training, must have read and signed the General Access RWP, and must be wearing their dosimeter.
JAG Dog Training Club Canine Acting Class
Register for Jefferson Lab Fall Golf Outing
Halls A, B and C Counting House Option for Storing Your Dosimeter
|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.|