Jefferson Lab Weekly Briefs March 18, 2015

Jefferson Lab Weekly Briefs
March 18, 2015

12 GeV Upgrade

The second superconducting magnet for the new Hall C Super High Momentum Spectrometer (SHMS) was delivered on March 6. The HB (Horizontal-Bend) magnet is the end product of a program that started in 2006 as an R&D collaboration between Jefferson Lab and Michigan State University. Construction began in 2010 and has involved staff of the National Superconducting Cyclotron Laboratory and the Facility for Rare Isotope Beams, as well as MSU. The HB Magnet must be compact but provide a high magnetic field, so that particles scattered at very small angles from the electron beam may be captured and analyzed by the SHMS. It uses saddle-shaped coils wound using reshaped SSC superconducting cable. The coils are tightly enclosed within a thick, heavily-welded stainless-steel H-shaped box. It must resist the 180-ton force that the coils will exert on it when they are fully energized. The HB Magnet is currently passing a series of incoming inspections on the floor of Hall C. It will be put in place on the SHMS carriage in the coming weeks.

At the request of DOE's Office of Nuclear Physics, Stephen Meador, Director of the Office of Project Assessment in DOE's Office of Science, convened a team of seven experts and five observers in an Independent Project Review of the 12 GeV CEBAF Upgrade Project held at Jefferson Lab on March 12. This review was to follow up on remaining questions from the November 2014 review. In the closeout, the committee found that the team had appropriately addressed recommendations from previous reviews. Further, while the superconducting magnets present challenges – with continued emphasis on process control, QA and vendor oversight – the project is positioned to be completed within the established cost and schedule performance baseline.


Jefferson Lab Published Journal Articles March 9-13

  • David J. Wilson, Jozef J. Dudek, Robert G. Edwards and Christopher E. Thomas (for the Hadron Spectrum Collaboration). "Resonances in coupled pi K, eta K scattering from lattice QCD." Phys. Rev. D 91 054008 (2015).
  • C. C. Hall, S. G. Biedron, A. L. Edelen, S. V. Milton, S. Benson, D. Douglas, R. Li, C. D. Tennant and B. E. Carlsten. "Measurement and simulation of the impact of coherent synchrotron radiation on the Jefferson Laboratory energy recovery linac electron beam." Phys. Rev. ST Accel. Beams 18 030706 (2015).

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

JSA Minority/Female Undergraduate Research Assistantship
Jefferson Lab is seeking candidates for a Research Assistantship. JSA will provide funds to support a junior or senior level student at the university during the 2015-2016 academic year. In recent years, students have used the funds to aid the exploration of 3D printed scintillator detectors for the study of field emission in accelerating cavities, as well as a presentation at the SESAPS conference on work done on the PrimEx-II Collaboration. Nominations will be accepted through April 17. For more information, visit the website.

HUGS Is Accepting Applications
Applications are now being accepted for the Hampton University Graduate Studies Program to be held at Jefferson Lab June 1-19. The HUGS program is supported by the U.S. Department of Energy and Jefferson Science Associates, LLC. It is a summer school designed for experimental and theoretical nuclear and particle physics graduate students who have finished their coursework and have at least one year of research experience in these fields. Students who are well into a research project are also encouraged to apply. The program is simultaneously intensive, friendly and casual. All lecturers are internationally renowned and leaders in their fields. Visit the website for more information and application requirements. The application deadline is April 2.


New evidence for the interesting charmonium-like state X(3872) has been found from first principles using lattice QCD. The quark-antiquark and DD* Fock components are found to be more important for this state than the diquark-antidiquark ones. The charged partner of the X(3872) is not found in this simulation, in agreement with the absence of such a state in experiment. The yet unconfirmed state Y(4140) is searched for by simulating the 1++ channel with hidden strangeness, but no candidate for this state is found.

Jefferson Lab Calendar of Events

March 23: Annual T-Shirt Contest entry deadline
March 26: E-Commerce Vendor Fair
March 30-31: MEIC Collaboration Meeting
April 1: Teacher Night at Jefferson Lab
April 11-14: APS April Meeting
April 19-20: A' Experiment (APEX) 2015 Collaboration Meeting
May 3-8: International Particle Accelerator Conference (IPAC15)

Environment, Safety, Health & Quality

Making Configuration Changes Safely
At a sugar production facility in February 2013, one employee noted that another employee was missing. Looking at the hopper where the missing employee had been working with a shovel, the first worker noted only a shovel handle sticking up. The shovel worker had become engulfed by the sugar and died. Federal investigators discovered that just 13 days prior, a safety device that would have prevented this tragedy had been removed by the manager on the grounds that it "was slowing down production."

Jefferson Lab's Configuration Management (CM) Program is in place to help prevent such unsafe changes. It is derived from DOE-STD-1073: Configuration Management, which states that the objectives of CM are to establish consistency among design requirements, physical configuration and documentation (including analysis, drawings, and procedures), and to maintain this consistency throughout the life of the facility or activity, particularly as changes are being made. Configuration Management is accomplished through the key elements of:

  • Design Requirements;
  • Document Control;
  • Change Control;
  • Work Control; and
  • Assessments.

At Jefferson Lab, the governing procedure for the entire lab is QA44: Configuration Management Governance Procedure. This procedure references document ENG-AD-01-001, currently revision A, The Conduct of Engineering Manual. Chapter 5 defines Configuration Management.


New Jefferson Lab Policy Posted: Assessing and Approving Outside Work
Opportunities at the lab routinely arise to engage with other institutions, sponsors or agencies to conduct research and development that is consistent with our mission and that can have benefit to the lab. On March 2, a new lab-wide policy and supporting instructions titled "Assessing and Approving Outside Work at Jefferson Lab" were posted by the Office of the Chief Financial Officer. This document provides a decision-making process that examines outside work (such as Work for Others, IAA, CRADAs, CRADAs in support of SBIR/STTR, IWOs, etc.) requiring the commitment of resources. To access the document, click here. To access where it is archived, log into INSIGHT, click on the Policies and Procedures tab, click on the CFO folder, then click on the Outside Work Policy.pdf.

Weight Loss Support Group Planning Meeting
Losing weight, eating well and getting exercise can be difficult. If you're looking to shed a few pounds, a weight loss support group can be an invaluable resource. The Jefferson Lab Activities Group is sponsoring a weight loss support group. Once a week, the group will hold a lunchtime meeting with a weight loss expert, who will cover topics such as healthy eating habits, portion control and recipes. If you’d like to learn more about the group and sign up, an information meeting will be held Thursday, March 19, noon-12:45 p.m. in ARC Bldg. room 231-233. You may also contact Barbara Rice at x7238 for more details.

Last Chance to Enter 2015 Annual T-Shirt Design Contest
Entries for Jefferson Lab's Annual T-shirt Design Contest are due before close of business on Monday, March 23. The JAG webpage provides more information and a complete list of rules and submission requirements. Anyone planning to make a last-minute submission on Monday, March 23, is asked to email Mary Jo Bailey this week. The lab community will vote on designs March 30-April 10.

New JLab SOTRs Can Get Required Training on March 24
Jefferson Lab will hold Subcontracting Officer Technical Representative (SOTR) training (GEN020) on Tuesday, March 24, 8:15 a.m.-12 noon in the Support Service Center (SSC), Bldg. 28, Room 53. If you have questions or plan to attend, register by 5 p.m. Friday, March 20, through the Learning Management System, or contact Kathleen Jones, x5139. If you have already attended and would like a refresher, you may also register for this class.

2015 E-Commerce Vendor Fair
All members of the Jefferson Lab community are invited to the annual JSA E-Commerce Vendor Fair scheduled for 9 a.m.–1 p.m. on Thursday, March 26. The theme is safety, so come ready to ask vendors about their safety information, supplies and equipment. Vendor displays and tables will be set up in the CEBAF Center atrium and room F113. Refreshments will be available throughout the day. If you have any questions or concerns about this event, contact Renee Carter, x7954.

Student Projects, Volunteer Mentors Needed for High School Interns
Eight outstanding high school students have been selected to participate in the lab's High School Summer Honors Program, which will be held June 22 – July 31. Critical to the success of their internship experience are projects for the students with mentors who can oversee one or more students as they carry out their work. The students are currently in the 11th and 12th grades and have expressed interest in pursuing scientific and technical careers. Lab scientists, engineers and other technical managers who are interested in serving as a mentor to high-achieving high school students and have a project, or any number of small projects that can be accomplished over the summer, are asked to contact Brita Hampton with a description of the work to be assigned by May 1. If you have questions, email or call her at x7633.



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.