Jefferson Lab Weekly Briefs February 25, 2015
Jefferson Lab Weekly Briefs
February 25, 2015
12 GeV Upgrade
The first 12 GeV Hall C magnet, Q1, which arrived in January, has been installed on the Super High Momentum Spectrometer (SHMS) carriage and connected to its cryogenic, power, and control systems. Following a checkout of those services, this superconducting magnet is now being cooled-down in preparation for its final acceptance tests. Close on its heels is the Horizontal Bend (HB) magnet, which is in its final week of construction at Michigan State University. The remaining three SHMS magnets are making steady progress, with the two coils for the dipole having been bonded together, and the final two (of eight) Q2 and Q3 coils now on the winding machines. On the SHMS, the calorimeters have been installed, and now the stands and frames for the remaining detectors have been trial-fitted in the shield house to assure that detector installations may proceed smoothly. Cables for the detectors are being installed now, as are the floor scales that provide experimenters with a precise measurement of the spectrometer angle.
Jefferson Lab Published Journal Articles Feb. 16-21
Remember to submit your papers for approval to the Jefferson Lab Publications database.
JSA Minority/Female Undergraduate Research Assistantship
2014 JSA Thesis Prize Nominations Accepted
JSA Accepting Applications for 2015-16 Sabbatical Leave Support Program
Center for Theoretical and Computational Physics
A new paper presents a method to study 0-to-2 and 1-to-2 transition amplitudes directly from lattice QCD. This method will allow for future studies of meson photoproduction, heavy meson and resonance decays, and deuteron photo-disintegration, among other phenomenologically important processes. The paper discusses an example of relevance to Jefferson Lab, N+γ → (N+π, N+η, N+η', Σ+K, Λ+K), where two-body, coupled channels are accommodated.
The Alignment group has been busy finishing up the work in all the halls and CEBAF Accelerator to get ready for lock-up and running. Some of the activities in the past five weeks were:
Additionally, multiple surveys were carried out in Hall B's Torus factory for CCM003, CCM004 and CCM005 vacuum jackets coil case assemblies.
Environment, Safety, Health & Quality
Proper Use of Home Pesticides
Jefferson Lab employees have had training about reading and understanding a chemical hazard and properties. Never buy a product to use around your family and pets when there are no warning or instructions on the label, and always follow the label directions to use safely.
Computing and Networking Infrastructure
Annual Computer User Account Audit Continues
Jefferson Lab Benefits Open Enrollment Ends Monday
2015 Annual T-Shirt Design Contest Is Underway
Your Role as a Jefferson Lab Fleet Vehicle Driver
Jefferson Lab Calendar of Events
Feb. 18-March 2: Benefits Open Enrollment
|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.|