Jefferson Lab Weekly Briefs
February 27, 2013

12 GeV Upgrade

Assembly of the tenth (of 10) C100 cryomodule continues. Acceptance testing of the sixth C100 was completed in the Test Lab, and it has been moved to the tunnel. Work on the new radiofrequency zones continues. Connections of the power supplies to the quadrupole and corrector dipole magnets is ongoing in the east arc beamlines, west recombiner and east spreader regions. Installation of girders and dipole magnets for the west recombiner continues, along with stands for the transport channel recombiner. Magnet cable pulls are complete in the east arcs and nearly complete in the west arcs. Preparation continues for the commissioning of the 4.5 Kelvin coldbox for the Central Helium Liquefier-2 (CHL2) next month. All five of the new warm compressors for CHL2 have been operated successfully. The Hall D refrigerator has been cooled to 4 K. Assembly continues of the cryogenics transfer line that will connect CHL2 to the linacs. Installation of the pedestals for the beamline to Hall D has started. Removal of the beamlines to Halls A, B and C is underway. A final functional review of the new beam position monitor (BPM) electronics was held.

Physics

In Hall C, the demolition of the Short Orbit Spectrometer shield house in Hall C was completed. In addition, the SOS frame was disconnected from the target pivot and the wheels were removed. The remaining 100-ton base frame was removed from the hall this week, readying Hall C for construction of the Super High Momentum Spectrometer support structure. Installation of the rail for the SHMS has been completed.

Save the Date for the 2013 Users Group Annual Meeting
Mark your calendars and plan to attend the 2013 JLab Users Group Annual Meeting on May 29-31 at JLab. Topics will include physics in all of the experimental areas at JLab, including the halls, accelerator and Free-Electron Laser, special presentations by prize winners and recent APS fellows, invited talks on neutrinos, RHIC spin physics and hadronic physics in Europe and Japan, and reports from lab management and from the funding agencies. As always, there will be a business meeting, graduate student poster competition, special lunch discussions for the graduate students and a reception. Further information and a registration page will be posted soon.

Reserve Your Space in the ARC Library
Users coming to JLab for a stay of short or intermediate duration now have an attractive option for work space: The newly refurbished user space in the ARC building library. This space features 36 work stations with L-shaped tables and comfortable chairs, Ethernet ports and WiFi access. Several work stations have been equipped with Linux computers (providing access to the lab's internal network) and telephones. Lockers are available to securely store personal items and equipment. A virtual tour of this space is available. Reserve a space online before your next visit with your JLab username/password. For help with reservations, contact Lorelei Chopard.

Free Electron Laser

Most staffers have been transferred to non-FEL jobs until funding from the Office of Naval Research resumes. A small amount of work is being done on remaining Department of Defense Joint Technology Office funds for optics development and simulations. The FEL team is ready to assemble the ring resonator when funding resumes.

Center for Theoretical and Computational Physics

Lattice QCD has proven itself capable of precision calculations for the quark masses, the strong coupling constant and a growing list of hadronic masses and matrix elements. There is a substantial effort to bring this level of precision to bear on nucleon matrix elements. Recent work in the Theory Center has developed an improved method that reduces the computational cost of the calculations of the nucleon matrix elements needed for the determinations of nucleon form factors, parton distributions and generalized parton distributions.

JLab Calendar of Events

March 2: Virginia Regional Middle School Science Bowl
March 5: Science Series: Guesstimating
March 6: Seminar: America Invents Act & Bright Ideas Recognition
March 6: Colloquium and Public Lecture
March 11: Safety Shoe Vendor onsite
March 13: Colloquium and Public Lecture
March 17-19: C-REX Workshop
March 25: Safety Shoe Vendor onsiteSafety Shoe vendor onsite
March 2: Virginia Regional Middle School Science Bowl
March 5: Science Series: Guesstimating
March 6: Colloquium and Public Lecture
March 13: Colloquium and Public Lecture
March 17-19: C-REX Workshop

Environment, Safety, Health and Quality

Prepare for Emergencies with the Ready Virginia Mobile App
The free Ready Virginia mobile app, developed by the Virginia Department of Emergency Management for iPhone® and Android™, gives Virginians a new way to prepare for disasters and also to stay informed during emergencies with the latest information and emergency planning and preparedness guidance. The app includes these and other important features:

  • Location- specific weather watches and warnings as well as flood information issued by the National Weather Service;
  • Disaster news from VDEM;
  • Maps with open American Red Cross shelters, hurricane evacuation routes, hurricane storm surge zones and stream gauges;
  • A template for creating a customized family emergency plan that can be easily shared;
  • Local emergency manager contact information; and
  • Links to register for local emergency alerts.

Visit the VDEM webpage for more information and to download the app.

Computing and Networking Infrastructure

Internet Outage Scheduled for Monday, March 4
The CNI group is planning an internet outage for 5:30-6 p.m. on Monday, March 4. Internal network access will continue to work during the outage. Access to external networks will be restored no later than 6 p.m. If you have any questions or concerns, contact the IT Division Helpdesk, x7155.

Announcements

Science Series: Guesstimating the Environment
You may ask: Paper or plastic? Gasoline or electric cars? Ethanol or gasoline? Local or imported food? We are constantly bombarded by environmental questions and by contradictory answers from "experts." Join Larry Weinstein, of Old Dominion University, will cover the principles of estimating, introduce the "Goldilocks" categories of answers, and then look at some of the big (and small) environmental questions of our time in a Science Series talk set for Tuesday, March 5, at 7 p.m. in the CEBAF Center auditorium. Visit the web link for directions and more info.

Come Learn About U.S. Patent System Changes and Celebrate JLab's Bright Ideas
When the America Invents Act goes into effect on March 16, it will introduce fundamental changes to the U.S. patent system. Michael Badagliacca, DOE Patent Office, will discuss how these changes will impact inventors at JLab in a seminar scheduled for March 6 at 11 a.m. in CEBAF Center room F113. He will discuss the America Invents Act, specifically address how the conversion from a "first to invent" to a "first to file" system will affect future patents, and answer questions on the new act. All members of the JLab community interested in learning more about the America Invents Act and its new provisions are invited to attend. Just before the seminar, JLab management and Technology Review Committee members will take a few minutes to give "Bright Ideas" recognition to lab staff that made patent disclosures of new Intellectual Property in 2012.

Colloquium and Public Lecture: Applications of Electron Linacs to Isotope Production
The application of accelerators, primarily with positive ion accelerators, to isotope production has a long history of success. Electron linacs, in contrast, have played a very limited role in isotope production. D.P. Wells, South Dakota School of Mines & Technology, will discuss electron linac-based photo-nuclear isotope production research, with an emphasis on several isotopes of interest for research and medicine. The colloquium is offered in the CEBAF Center auditorium at 4 p.m. on March 6.

Brown Bag Lunch Workshops with MIS
Have you ever wondered how to send a letter of increase for a requisition? Want to know how to purchase something from the stockroom? Did you miss the E-Commerce training sessions in January? Management and Information Systems staff will host its first monthly brown bag lunch workshop on Thursday, March 7, noon-1 p.m. Each month, 30 minutes of informal training for a small subset of MIS applications will cover topics from simple "how to" examples to less frequently used features of the software. After the first half hour, staffers will open the floor for questions about any MIS application. A few developers will be in attendance, as will a few application owners, so there will be a wealth of knowledge in the room. The first workshop will cover the purchasing applications used at JLab: Requisitions, E-Commerce, Stockroom and Credit Card Log. Bring your lunch and questions and join us! A few light refreshments will be provided. For more information, contact Kari Heffner.

C100 Cryomodule Naming Event
JLab staff and users are invited to celebrate the completion of the 10 cryomodules designed and built for CEBAF’s 12 GeV Upgrade in a cryomodule naming event in the Test Lab Addition High Bay at 11:30 a.m. on Tuesday, March 12. Lab Director Hugh Montgomery and Associate Director of the Accelerator Division Andrew Hutton will recognize the SRF working groups’ contributions to the project and announce the cryomodule-naming contest winners. The SRF working groups and cryomodule-naming contest winners will receive a special commemorative C100 T-shirt. For more information, contact Michelle Lechman.

2013 Benefits Open Enrollment Ends Friday
The 2013 Annual Benefits Open Enrollment Period for JLab regular and term employees will be offered through March 1. Employees may review and, if necessary, modify benefits options via the Employee Self Service System (ESS). As in the past, if you are not changing benefits, selecting a medical option outside of the default health plan and do not enroll in a Flexible Spending Account (FSA), you do not need to re-enroll. Your current benefit elections will remain on file and be effective for the new benefit year. The Human Resources Benefits page contains valuable information. Training on the ESS System and an overview of sponsored lab benefits will also be offered; see the full announcement for training times and important information about benefits changes.

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.

Chase Dubbe correctly guessed the location for Feb. 20. Honorable mentions go to Michelle Shinn, Michael McCaughan, Harry Fanning, Anna Shabalina, Anthony DiPette and Mark W. Weihl. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.

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.