Jefferson Lab Weekly Briefs September 19, 2012

Jefferson Lab Weekly Briefs
September 19, 2012

12 GeV Upgrade

The 12 GeV long-term installation activities are coordinated through monthly progressing and weekly planning meetings of the Long Shutdown team. Integration of the 12 GeV Hall B and Hall C installation schedules is planned for the upcoming months. Monthly meetings with Facilities Management & Logistics continue to ensure coordination and support for 12 GeV facility-supported activities. Installation activities at Hall D continue to increase and are coordinated through the Hall D work coordinator.


Act Fast to Get "Adopted" for High School Physics Outreach
Adopt-a-Physicist connects high school physics students to real physics graduates who are eager to share their stories through online discussion forums that are active Oct. 2-22. Each physicist can only be adopted by up to three classes, making lively, in-depth discussions possible. Led by Sigma Pi Sigma and sponsored by the American Physical Society, the Society of Physics Students and the American Association of Physics Teachers, Adopt-a-Physicist aims to engage high school physics students and teachers in exploring the benefits of studying physics; encourage physics graduates to give back by sharing their experiences with students; and advance the dialogue between the physics and the high school education communities. Physicist registration closes today, Sept. 19, so sign up now.

W&M Colloquium to Discuss CDF at the Tevatron
Kevin Pitts, a professor at the University of Illinois at Urbana-Champaign, will present "Three Decades of the CDF Experiment, Many Decades of Sensitivity" in a colloquium at the College of William & Mary. The CDF Collaboration formed in the late 1970's as an effort to develop a colliding beam experiment at the Fermilab Tevatron high energy proton-antiproton collider. Pitts will talk about the science, technology and history of the CDF experiment, highlighting some of the most interesting and exciting results, including a summary of the Tevatron Higgs boson search. The event will take place in Small Hall, room 111 at 4 p.m. on Sept. 21.

Free-Electron Laser

The FEL Personnel Safety System certification was completed in preparation for gun high-voltage processing. Steve Benson attended the 8th Annual DOE Laser Safety Officer Workshop at SLAC; Gwyn Williams gave a colloquium at George Washington University; and George Neil attended meetings at Shanghai Institute of Applied Physics.


The Safety Systems group continues 12 GeV Upgrade work on the North Linac and Hall D safety systems. Installation of the Hall D oxygen monitoring and alarm systems has started, along with work on the Tagger/Hall D access room interlocks. Design modifications for the superconducting radiofrequency Vertical Test Area PSS are underway. Changes will add new dewar shielding controls and a touch-panel interface.

The DC Power group continues with 12 GeV Upgrade cable installation, procurement tasks for new power supplies, and equipment upgrades to the trim and shunt system. The RF group has resumed preparations for installation and commissioning of the six remaining 12 GeV RF systems. Fabrication shop personnel continue assembly of 12 GeV subsystem elements. Meanwhile, the support group's electricians have been busy installing tray and box duct in Hall D enclosures, completing the final AC electrical configuration for the low-conductivity water systems in the accelerator, and hooking up power to new 12 GeV equipment.

The Instrumentation and Controls group has concentrated its efforts on 12 GeV beam position monitor fabrication, testing and installation. Completed equipment includes 30 strip line BPM cans, with 10 units with fully characterized field maps. Other activities in progress are: first article testing of the BPM receiver electronics, assembly of first article IF modules, Arc 10 BPM cable terminations and the completion of Arc 10 super multiplexers.

Finally, 10 members of Electrical Engineering Support are currently assigned to other groups. They are working to assist in equipment tear out and installation in the accelerator tunnel and in Hall B for the CLAS decommissioning and cable removal tasks.

Environment, Safety, Health and Quality

Changing light
With fall at hand, the sun rises and sets earlier, impacting our ability to see well. In particular, driving toward the sun as it is lower on the horizon may adversely affect a driver's ability to see objects or people due to direct brightness or glare.

Here are some safe driving tips for spring and fall:

  • make sure your vehicle lights are on, increasing your chance of being seen,
  • make sure your windshield is clean and clear of dew or frost,
  • only wear sunglasses when appropriate, and
  • watch out for people who may not see you as they step off the sidewalk or in a crosswalk.

You can find additional seasonal safe driving tips in this article in the Sacramento Bee.


Flu Shots Now Available
Occupational Medicine is now scheduling appointments to administer Influenza vaccinations to JLab staff. If you would like to be vaccinated, contact Occupational Medicine at x7539 to schedule an appointment. Keep in mind when you schedule your appointment that for 15 minutes after vaccination, you should remain at JLab in the presence of other people and avoid safety-sensitive activities, including driving.

Onsite Blood Drive Set for Tuesday, Oct. 23
The next American Red Cross Blood Drive is scheduled for Tuesday, Oct. 23, 10 a.m.-4 p.m. in CEBAF Center Room F113. New and repeat donors are encouraged to attend. Appointments and walk-ins are welcome. To schedule an appointment, contact Johnie Banks, x7539.

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 Brita Hampton, Samika Hawkins and Ryan Bodenstein, who were the first to correctly identify the location for Sept. 12. Honorable mentions go to Michael Haddox-Schatz, Doug Higinbotham and Harry Fanning. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.

JLab Calendar of Events

Sept. 24: Safety Shoe Vendor onsite
Oct. 4-5: GlueX Collaboration Meeting
Oct. 10-13: CLAS Collaboration Meeting
Oct. 15: Safety Shoe Vendor onsite
Oct. 17: Colloquium and Public Lecture
Oct. 23: American Red Cross Blood Drive
Oct. 24: JAG Oktoberfest