Jefferson Lab Weekly Briefs April 19, 2017
Jefferson Lab Weekly Briefs
April 19, 2017
Advocacy Participation Reminder for Employees
Lab Leadership would like to remind JSA employees who choose to participate in advocacy activities, such as the upcoming March for Science, that they do so in their capacity as private citizens and not as representatives of JSA, Jefferson Lab, or the U.S. Department of Energy; this includes the display of branded materials and attire. In keeping with JSA policy, employees must refer all media inquiries to the Jefferson Lab Communications Office. If you have any questions, please contact the Communications Manager, Lauren Hansen, at email@example.com or x7689.
12 GeV Upgrade
Work to recover the suspension link failure for the Hall B Solenoid magnet is nearly complete. All eight of the "pockets" that carry the suspension system that supports the cold mass were removed from the central cryostat shell and re-worked. The central cryostat shell has since been put in place again over the magnet’s cold mass. After the pockets were checked for vacuum tightness, the load transfer of the cold mass weight from the current temporary support structure to the cryostat proper was successfully completed, thus retiring a technical risk for the project. Work on attaching the remaining sections (ends and bore tube) of the magnet radiation shield and the closure of the cryostat is starting. Hall B technicians and engineering staff continue to complete as much as possible of the remaining work at Jefferson Lab to expedite final installation upon arrival of the magnet.
Jefferson Lab Published Journal Articles, April 9-15
Remember to submit your papers for approval to the Jefferson Lab Publications database.
JSA Young Scientist Program Now Accepting Applications
DOE Office of Science Graduate Student Research Program Is Accepting Applications
Entry periods will be as follows:
Winners will be announced in the subsequent JLab Weekly Briefs. Prize can be picked up from the library. If you have any questions about the trivia challenge, contact Kim Edwards at firstname.lastname@example.org.
Center for Theoretical and Computational Physics
In a new paper, the nucleon isovector axial charge gA was computed within lattice QCD. Careful study of all systematic errors was performed and statistical errors were reduced through a combination of a novel construction of the correlation functions and a high-statistics calculation. The final result, gA = 1.278(21)(26), agrees well with the experimental value, where the first uncertainty comes from the statistical and systematic uncertainties from fitting, and the second is a systematic error due to the model used for the extrapolations to the chiral and continuum limits.
Environment, Safety, Health and Quality
New Jefferson Lab Safety Culture Survey Questions
However, after 11 cycles of the same questions, the responses have plateaued. To keep improving, the division has developed a new survey. The significantly changed questions now focus more on characteristics critical to a positive and improving safety culture, such as the quality of incident investigations, management interactions, and the actions and effects of individuals. Plus, the new survey is shorter!
On April 13, all JSA staff received an email request to take the new survey. The survey is your chance to provide your thoughtful insight and enable further improvement. If you haven't done so already, you're encouraged to take the survey at your earliest convenience using the link in the notification email. A reminder email will be sent out to anyone who has not completed the survey on Thursday, April 20.
Power Outage May Affect Your Afternoon Commute
Reminder: April 26 All-Hands Meeting
Quark Cafe Update: Elite Offers New Items
Jefferson Lab Travelers and Travel Coordinators: New System Debuts May 1
Vendor Fair Set for April 20
Jefferson Lab Calendar of Events
April 20: JSA's 2017 Small Business Outreach Fair
|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: the Communications Office or contact Kandice Carter at x7263.|