Jefferson Lab Weekly Briefs - June 29, 2016
Jefferson Lab Weekly Briefs
June 29, 2016
12 GeV Upgrade
The Hall B CLAS12 Torus magnet has been made leak tight and has been pumping down the past few weeks. Progress is slow but steady as the trapped gas inside the magnet’s vacuum space is removed. The gas being removed is about 80 percent water vapor, which is known to be slow to evolve from the multi-layer insulation in the vacuum space. The second review for the Torus cooldown was held on June 27. The in-situ checkout is ongoing for the control logic and instrument readouts for the magnet. Various display, control and alarm screens for operators are being tried out.
The copper cooling strips needed to connect the epoxied surfaces of the two inner coils of the CLAS12 Solenoid have been attached to the helium-filled channel at the center of their winding bobbin. The temperature and strain gauges are being added to the coils. The fifth, or “Shield”, coil has completed its epoxy-impregnation step and has subsequently had its full outer layer of copper cooling strips added. The two conical parts of the end sections of the cryostat have been formed and welded, and the inner bore tube for the cryostat is being prepared.
Jefferson Lab Published Journal Articles, June 20-24
Remember to submit your papers for approval to the Jefferson Lab Publications database.
Publications Training and Refresher Course
Jefferson Lab Calendar of Events
July 4: Independence Day holiday, Jefferson Lab closed
2016 Summer Physics, Science Education, Enrichment Programs at JLab
Environment, Health, Safety and Quality
Jefferson Lab Lessons Learned from the Feb. 24 Tornado Weather Event
There are several good tips that the Jefferson Lab community can take away from the event. See the full list of lessons learned in the all-staff memo.
DOE Best Practices Document Posted
Personal Dosimeter Change Out Set for Friday, July 1
Tornado Warning Siren Test Set for 10:30 a.m. on Friday, July 1
Radiation Worker II Class Offered July 12
Inspector General’s Office to Give Fraud Awareness Briefing July 27
|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.|