Jefferson Lab Weekly Briefs November 22, 2017

Jefferson Lab Weekly Briefs
November 22, 2017

Physics

Jefferson Lab Published Journal Articles, Nov. 12-18

  • M. Hattawy et al. (CLAS Collaboration), "First Exclusive Measurement of Deeply Virtual Compton Scattering off 4He: Toward the 3D Tomography of Nuclei." Phys. Rev. Lett. 119, 202004 (2017).
Remember to submit your papers for approval to the Jefferson Lab Publications database.

Archives Photo of the Week
This week's photo shows Virginia Secretary of Commerce and Trade Robert Skunda with Nathan Isgur and Hermann Grunder during a 1994 visit.

Publications Refresher Course Offered on Dec. 11
Authors who need to brush up on their knowledge of the Jefferson Lab Publications System or who want to know more about DOE's PAGES will want to come to the next Publications Training and Refresher course on Monday, Dec. 11, at 11 a.m. in CEBAF Center room F228. Sessions typically last 30-45 minutes. To attend, send in your advance R.S.V.P. to Kim Edwards at kindrew@jlab.org.

Center for Theoretical and Computational Physics

There are a number of accelerator neutrino experiments, currently running or in the planning phase, aimed at measuring fundamental properties of these particles. The analysis and interpretation of these experiments require a quantitative understanding of neutrino-nucleus scattering. A new paper reports the first ab initio calculation of neutrino inclusive quasielastic scattering from 12C (one of the targets used in the experiments) by neutral current interactions. It finds that the strength and energy dependence of two-nucleon processes induced by correlation effects and interaction currents are crucial in providing the most accurate description of neutrino-nucleus scattering in this kinematical regime.

Jefferson Lab Calendar of Events

Nov. 23-24: Thanksgiving holiday, Jefferson Lab closed
Dec. 9: JAG Children's Holiday Party
Dec. 25-Jan. 1: Holiday Shutdown, Jefferson Lab closed
Jan. 19: Mobile Mammography Unit On-site
Jan. 22-23: Hall C Collaboration Meeting
Jan. 24-25: Hall A Collaboration Meeting

Environment, Safety, Health and Quality

Notable Event Report Complete: Central Helium Liquefier Electrical Conduit
On Oct. 4, a conduit with a 480-volt conductor was pierced during re-roofing of the Central Helium Liquefier 1 (CHL1), causing the power to be interrupted to the CHL1 cold box controls and tripping the refrigerator off. The conduit location on the roof had been marked by the contractor; however, due to multiple communication and process issues, the markings were thought to be incorrect. Further, the electrical line had not been de-energized by the lab prior to the work. Corrective actions include development of a standard procedure for electrical outages, consideration of possible impacts when scheduling activities near operational equipment, and subject matter expert review and approval prior to start of work. The complete Notable Event report can be reviewed online.

Announcements

Hari Areti Receives Francis Slack Award
Hari Areti has received the Francis G. Slack Award from the Southeastern Section of the American Physical Society. The award was established to honor excellence in service to Physics in the Southeastern U.S. Read more here.

SOTR Training Offered Nov. 29 and Dec. 8
Jefferson Lab training sessions for any new Subcontracting Officer Technical Representatives (GEN020) or anyone who wants a refresher class are now being offered. The GEN020 class is now open for registration for Nov. 29 or Dec. 8. Both sessions will take place 8 a.m.-12:30 p.m. in room 53 of the Support Service Center, Bldg. 28. Advance registration is required, and you may see availability for both classes via this direct link to the Learning Management System. For class details, see the full memo for the Dec. 8 class.

JAG Announces 2017 Holiday Activities: Toy Drive, Children’s Holiday Party and Decorating Contest
The Jefferson Lab Activities Group has posted the details for its next three events. The Toys for Tots Toy Drive is now underway; unwrapped toy donations for children 1-12 years of age may be placed in collection boxes through Dec. 8. The Children’s Holiday Party is set for Dec. 9, and volunteers are asked to sign up early for the event. Finally, entries for the Office Door/Cubicle Decorating Contest should be submitted by Friday, Dec. 15. For all of the details and links, see the full memo.

RadWorker I Training Offered
A Radiation Worker I qualification class will be held 9 a.m.- 5 p.m. on Wednesday, Dec. 6, in the large conference room in Bldg. 52 (ESH&Q Bldg.). If you wish to attend this class, contact Maya Keller as soon as possible at mkeller@jlab.org or x6021.

Mobile Mammography Unit Onsite Jan. 19, 2018
The Chesapeake Regional Mobile Mammography Unit will be stationed in the ARC parking lot on Jan. 19, 2018. Appointments will be available during the hours of 9 a.m.-3 p.m. Mammography detects breast cancer, and The American Cancer Society recommends scheduling your first or baseline mammogram by age 40. This service is open to everyone, as personal health insurances will be billed. To make an appointment, call (757) 312-6400 or visit the website at www.chesapeakemammo.com.
JLab Weekly Briefs is an ongoing publication providing information on the status of safety, accelerator operations, experiments, 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.