Aug 18, 2021 - Group Meeting

Meeting Info

• Weekly group meetings Wednesdays at 10 am in TL-1227.
• Bluejeans available if we need it: https://bluejeans.com/7572697097

General Info

• JSA Initiatives program deadline Aug 27 http://www.jsallc.org/CP22.html
• Free lunch at the cafeteria this week!

CEBAF

• Start-up delayed until Aug 27
• On-call, Shukui laser training?
• Unresolved - HV readback correlated with power meter in/out - https://logbooks.jlab.org/entry/3886655

UITF

• UITF schedule meeting just after 1:30 today...Shukui, Carlos, Max, Marcy, Phil
• Source HCO
  • Tue ~ Carlos would like to wrap up HV tests with a GaAs puck in the gun
  • Wed ~ lock out gun HVPS, reconnect gun valve, charge NF3, degas heater/puck, get UITF laser on,
  • Thu ~ Joe/Max make a photocathode
  • Fri ~ Shukui re-align laser to photocathode, using retro and QE
• Table of settings 200 kV vs. 180 kV; Scott, Max
• Continue building 3rd Wien filter; electrodes, pins, which gap size?

GTS

• Status?
• Is software a Must or Should for HV control?

EIC

Conferences & Workshops

• International Beam Instrumentation Conference, Sep 13--17, 2021
• Mini-Symposium Advancements and Opportunities of Polarized Targets and Beams APS DNP Meeting, Boston Oct 11-14, 2021
• IEEE Conference on Electrical Insulation and Dielectric Phenomena, Vancouver, BC, Canada October 17-20, 2021
  • Carlos, maybe Gabriel
• 24th International Symposium on Spin Physics (SPIN2021) October 18-22, 2021, Matsue, Japan
  • Riad
• AVS Symposium, Charlotte NC, October 24-29 (Marcy)
• Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, Riad, Mamun)

Paper writing updates...

• Riad, Vasily, Slava - Spin transparent rings for EDM, BSM physics (submitted PRL 7/20)
• Shukui - Green fiber laser
• Josh, Joe- Biased anode study
• Sajini, Riad - GTS magnetized beam paper
• Sajini, Carlos - GTS gun re-design paper