Jefferson Lab Weekly Briefs
December 5, 2012

12 GeV Upgrade

Assembly of the ninth C100 cryomodule is nearing completion. Assembly of the tenth and final C100 cryomodule is well underway. Work on the new radiofrequency zones is going well: testing into shorts has started for the fifth new zone and installation of the sixth and seventh zones is underway. The cryogenics systems for Hall D solenoid is nearing completion and is on track for the start of solenoid cooldown in mid-December. Re-installation of the east recombiner is nearly complete. Fifty-nine of the  65 one-meter spreader/recombiner dipole magnets have been re-worked. All magnets continue to meet specifications. Field mapping of the first three-meter long ZA septum is underway; the second ZA magnet has been received. All Instrumentation & Controls/Safety Systems will be ready on schedule for Hall D solenoid cooldown and linac cooldown.

Physics

In Hall C, Short Orbit Spectrometer deconstruction has continued with the removal of the large shield house doors. The paper "Observation of the Helium 7 Lambda hypernucleus by the (e,e'K+) reaction," based on experiment E01-011, has been accepted for publication by Physical Review Letters. The paper, "A detailed study of the nuclear dependence of the EMC effect and short-range correlations," based on Hall C and other data, has been accepted for publication in Physical Review C.

2013 Postdoctoral Research Prize Deadline Nears
The basis for picking the top candidate includes a record of accomplishment in physics, a planned high-impact Jefferson Lab physics program, proposed use of the research grant, and promise of further accomplishments in the Jefferson Lab research fields in the future. All nominees must be within five years of graduation and in a postdoc or equivalent position at the time of nomination. You do not have to be an experimental postdoc working at a university to apply, and JLab and theory postdocs are also eligible to apply. Previous winners are not eligible. Entries should include a research statement (five-page limit) and CV by the nominee, along with three letters of reference. The research statement should describe past work and future plans and should include a preliminary budget. All materials may be emailed in separately. All entries must be emailed to Lorelei Chopard by Jan. 4.

2012 Thesis Prize Program Open for Submissions
Theses completed during the calendar year 2012 are eligible, as well as theses completed during the last quarter of 2011 (if they haven't been submitted before). A complete package requires a nomination letter by a senior scientist giving the name and institution of the person being nominated and the names of three people who will send letters of recommendation, along with a copy of the thesis. All materials, including the three letters of recommendation, must be submitted electronically before the deadline. Criteria for evaluation are: quality of written thesis (40 percent), contribution of student to work (30 percent), impact of work (15 percent), service to JLab physics (15 percent). All materials must be sent by email to Lorelei Chopard by the Feb. 1 deadline. The best JLab-related thesis will be recognized at the summer Users Group meeting on May 29-31. For more information, contact the chair of UGBoD or visit the Users Group wiki.

JSA Awards $412K for FY13 Initiatives Fund Program
JSA, LLC has announced the award of $412,000 to support projects related to education, outreach and career development to staff and users at JLab. The Initiatives Fund supports programs, initiatives and activities that further the scientific outreach, and promote the science, education and technology missions of JLab in ways that complement its basic and applied research focus.

Free-Electron Laser

FEL staffers are commissioning the gun in preparation for a start of operations next month and are using a combination of krypton and vacuum processing. The team achieved 400 kilovolts with krypton and 359 kV, on the way to the goal of 370 kV under vacuum.

Center for Theoretical and Computational Physics

The light-cone momentum distributions of pions in the nucleon have been computed in chiral effective theory using both pseudovector and pseudoscalar pion-nucleon couplings. For the pseudovector coupling, the analysis identified δ-function contributions associated with end-point singularities arising from the pion-nucleon rainbow diagrams, as well as from pion tadpole diagrams which are not present in the pseudoscalar model. The results pave the way for phenomenological applications of pion cloud models that are manifestly consistent with the chiral symmetry properties of QCD.

JLab Calendar of Events

Dec. 8: JAG Children's Holiday Party
Dec. 10: Sentara Mobile Mammography unit onsite
Dec. 17: Safety Shoe vendor onsite
Dec. 20: Quark Cafe's Holiday Bake Sale
Dec. 24-Jan. 1: Winter Holidays and Shutdown Days, JLab closed

Environment, Safety, Health and Quality

Holiday Decoration Fire Safety
Many of the upcoming winter holidays are celebrations that center on fire and lights, whether it's Christmas, Hanukkah, Kwanzaa or another celebration. If you plan to show some holiday spirit at JLab, it's important to abide by the same safety guidelines that we follow every day. Here at JLab, there are limits on the types and amounts of holiday decorations that are allowed in any one area. Never block doorways or even 'camouflage' them with decorations, as you could delay the exit of co-workers during an evacuation. In addition, decorating materials should always be fire resistant, and only UL-approved lighting/electronics may be used. If you plan to use plugs and/or extension cords, remember to follow all JLab guidelines that apply to those devices.

If you are unsure about the use of a decoration, call Dave Kausch, x7674, or Tim Minga, x7310, for advice.

Announcements

JLab to Test Tornado Warning Siren Friday at 10:30 a.m.
JLab's tornado warning siren will undergo its monthly operational test at 10:30 a.m. on Friday, Dec. 7. Depending on weather conditions at the time of the test, the siren may be heard by anyone outdoors within a 1.5-mile radius of the lab. More information about the siren is in this March 2012 On Target newsletter article.

Personal Dosimeter Change Out Set for Dec. 17
JLab's semi-annual personal dosimeter change out will take place mid-afternoon on Monday, Dec. 17. This includes the dosimeters of all JLab staff, users and subcontractors. If you need to use your dosimeter during the change out period on Dec. 17, you may exchange it that morning in the Radiation Control Dosimetry Office in Bldg. 52B, Room 4, 8 a.m.-1 p.m.  If you have questions, please contact Becky Mosbrucker, x7236.

Additional Date Offered for Onsite TIAA-CREF Counseling
TIAA-CREF will offer individual counseling sessions onsite in the Support Service Center (formerly VARC) room 53A on Dec. 13. In these sessions, employees can discuss their personal financial situation with a TIAA-CREF consultant on a confidential basis. To discuss your plan and options for managing your retirement savings or to schedule an appointment with a TIAA-CREF individual consultant, call TIAA-CREF at (800) 732-8353, Monday-Friday, 9 a.m.-8 p.m.

Toys For Tots Toy Drive Underway
JLab is participating in the U.S. Marine Corps' annual Toys For Tots toy drive. Bring in your donation of new, unopened toys for children ages 1-12 and deposit them in the marked collection boxes near the main entrances of CEBAF Center, Bldg.89, SSC, ARC and TED Buildings through Friday, Dec. 7.

Children’s Holiday Party Set for Dec. 8
The Jefferson Lab Activities Group is hosting the Children’s Holiday Party on Saturday, Dec. 8, 10 a.m.-1 p.m. in the CEBAF Center lobby. All children of JLab employees, contractors and users are invited. Each family is asked to bring a new, unopened toy donation for Toys For Tots. Santa Claus plans to drop by with JAG Dog Training Club member, Dan Young, Physics Division, and his two Samoyeds, Nikko and Tally (aka JLab's Santa dogs), for photographs and messages from the children. Games, craft activities, light snacks and drinks will be provided. All children must be accompanied by an adult.

Volunteers Needed to Help With Children’s Party
Individuals are needed to fill 27, one-hour volunteer spots to help with the children's holiday party, mostly as crafts-table and game helpers to assist younger children with basic cutting, gluing or tying. Volunteers are also needed for the snack area and as Santa's Helpers. Adults and older children planning to attend the party are asked to consider signing up to help. Sign up now online.

Annual Open Enrollment for TIAA-CREF 401(k) GSRA Ends Friday, Dec. 14
The 2012 TIAA-CREF 401(k) GSRA Annual Enrollment will allow you to increase, decrease or opt out of the 401(k) GSRA plan. Employees who do not enter the system by 5 p.m. tomorrow will be automatically enrolled in the default employee five percent contribution plan that is based on your current salary. If you have any questions, contact Treva Ferguson, x7291, or Doug Roeder, x7576.

Ready, Set, Hang Those Decorations
JAG is sponsoring a Holiday Office Door/Cubicle Decorating Contest. Prizes will be awarded for the Best Decorated, Most Original Decoration, and the Silliest. All employees, users and contractors with an office or cubicle at JLab may enter the contest (individuals and groups). To enter, email JAG Chair Bridget Paul at bpaul@jlab.org no later than 5 p.m., Dec. 14. Include your name(s), building number and office/cube location. Judging will take place Dec. 17-18. Winning entries will be announced Wednesday, Dec. 19. For more information and rules, visit the JAG web page.

Tracking Thomas at JLab
Little Thomas is visiting all corners of the JLab campus. If you can identify his location this week, email Kandice Carter with your guess. Guesses are accepted through Friday.

Congratulations this week go to Samika Hawkins, Maurizio Ungaro and Annie Tran, who were the first to correctly identify the location for Nov. 21. Honorable mentions go to Debra Brand, Jason Willoughby, Elaine Zuchowicz, Debbie Campbell, Chase Dubbe, Michael Haddox-Schatz, Christopher Wicker, Michelle Shinn, Ryan Bodenstein, Gwyn Williams, Casey Heck, Andrea Celentano, Silvia Niccolai and Harry Fanning. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.