Jefferson Lab Weekly Briefs May 31, 2017

Jefferson Lab Weekly Briefs
May 31, 2017


Jefferson Lab Published Journal Articles, May 19-29

  • E. Moffat, W. Melnitchouk, T. C. Rogers and N. Sato. "What are the low-Q and large-x boundaries of collinear QCD factorization theorems?" Phys. Rev. D 95, 096008.
  • C.-Y. Tsai, Ya. S. Derbenev, D. Douglas, R. Li and C. Tennant. "Vlasov analysis of microbunching instability for magnetized beams." Phys. Rev. Accel. Beams 20, 054401.

Remember to submit your papers for approval to the Jefferson Lab Publications database.

Publications Refresher Course Set for June 21
The next Publications Refresher Course is set for June 21, 2-3 p.m. in CEBAF Center room F226. Familiarize yourself with the publications submission and approval system, DOE's Public Access program and Jefferson Lab activities to support public access. Sessions last about 45 minutes and include a live demonstration of all aspects of the publications system. If you plan to attend, R.S.V.P. to no later than June 20.

History Archives Photo of the Week
This week's photo of the week features Dana Hamel (CEBAF/SURA), James W. Dyke, Jr. (Virginia Secretary of Education), Karen Peterson (Virginia Department of Education), and Lab Director Hermann Grunder touring the Cryomodule Test Cave in 1990.

Jefferson Lab Calendar of Events

June 13-16: CLAS Collaboration Meeting
June 19-21: Users Group Annual Meeting
June 22-23: Joint Hall A & C Summer Collaboration Meeting
June 29-30: SoLID Collaboration Meeting

Environment, Safety, Health and Quality

Jefferson Lab Prepares for 2017 Hurricane Season: June 1-Nov. 30
The National Weather Service has determined “Hurricane Season” to be June 1 through Nov. 30. The forecast for the 2017 Atlantic Basin Hurricane Season predicts 11 named storms and four hurricanes. Jefferson Lab participates in observing this season by elevating its preparedness level to Hurricane Preparedness Condition 1 (HPC-1) on June 1. The Emergency Management Team will inform the laboratory community if there is any reason to elevate the lab's preparedness level. This is the time to make sure the lab is ready to deal with hurricane weather. See the full memo for more information.

Extech Recalls Digital Clamp Meters Due to Electrocution Hazard
Extech is recalling digital clamp meters model numbers EX650, EX655, MA160, MA61, and MA63. These models are all AC/DC clamp meters, which are electrical testing devices that measure AC/DC voltage, resistance, capacitance, frequency, temperature, continuity, and diode. Serial numbers in the following format are included in the recall:  R15XXXXXXX to R17XXXXXXX. Only serial numbers in this range are included in the recall. The “EXTECH” logo and the model number are printed on the front of the unit and the serial number on the back. The digital clamp meters are green and orange.
Consumers should immediately stop using the recalled digital clamp meters and contact Extech for a free replacement meter. Extech has received two reports of clamp meters displaying an incorrect voltage reading. No injuries have been reported. These meters were sold at Grainger, Platt Electric Supply stores and industrial and electrical distributors and wholesalers nationwide and online at and other websites from January 2016 through April 2017. They were manufactured in China. For the full CPSC report and details for return and replacement, visit the link.


Today! Free Health Screenings Offered by Optima Health
Optima Health is offering free and confidential health screenings at Jefferson Lab today until 1 p.m. Walk-ins are welcome! The 10-minute screenings will take place in CEBAF Center room F113. At this screening, you will learn more about blood pressure, cholesterol, diabetes risk, Body Mass Index, tobacco cessation, and the benefits of regular physical activity. This free service is open to Jefferson Lab employees as well as Users and subcontractors.

Jefferson Lab to Test Tornado Warning Siren at 10:30 a.m. on Friday, June 2
Jefferson Lab's tornado warning siren will undergo its monthly operational test at 10:30 a.m. on Friday, June 2. Don't respond to the siren; this is a test of the siren system and not a personnel response exercise. Individuals planning to be in the Central Materials Storage Area (where the siren is located) while the test is taking place must have with them and wear two layers of hearing protection.

2017 Outstanding Nuclear Physicist Prize Winners Announced
JSA Named Charles Perdrisat and Charles Sinclair as Co-Recipients of the 2017 Outstanding Nuclear Physicist Prize. The prize went to Charles Perdrisat for his pioneering implementation of the polarization transfer technique to determine proton elastic form factors and to Charles Sinclair for his crucial development of polarized electron beam technology, which made such measurements, and many others, possible. You can read more here.

Run-A-Round Results and T-shirt Distribution and Ordering
Jefferson Lab’s 32nd annual Run-A-Round on May 17 featured nearly 550 registrants with 400 finishing the run/walk. See the full memo for a link to the run/walk results, award information, free T-shirt distribution and options for ordering merchandise featuring the 2017 winning design (orders due by June 2).

Last Day: JSA Minority/Female Undergraduate Research Assistantship Taking Nominations
Jefferson Lab is seeking nominations of minority or female undergraduate physics students from accredited universities for a research assistantship for the 2017-2018 academic year. The assistantship provides students an opportunity to work on science and engineering projects related to the lab's research. Students must be nominated by a faculty member. The nomination deadline is Wednesday, May 31. This project is supported by the JSA Initiatives Fund program. For eligibility and nomination requirements, see the full posting.

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.