June 29, 2021 - Group Meeting

Group business

• Starting on Friday, virtual foreign conferences w/ fees requires DOE approval, takes 18 days, go through usual TA process
• I submitted my request to hire an SE1/2, now begins the long process of getting approval from Stuart
• I'm on vacation starting tomorrow, back Jul 12. Riad is acting dept head while I'm gone.

Around the table status updates

• CEBAF
  • Unofficially, start-up looks to be delayed ~2 weeks
  • A~40uA (polarized for ~one week), C~70uA
  • Diamond Mott ladder

a) clean and assemble ladder parts (tee, feedthrough, TC, Cu rods, Al ladder, thermcouples)

b) attach upper (parts) and lower (spool) to mcallister

c) work with S&A group to set upper mcallister CF "flat", find X/Z micrometers to center target, and motor to calibrate Y position relative to a home

d) S&A group measuring as-founds of existing ladder in tunnel today

e) Danny working on (2) storage tubes and (1) mcallister support

• Mode-locked laser test

• Upgrade
  • Can someone figure out absolute positions of 2I BPM's by learning SOFF and GOFF (work with Gould & Musson)?
  • Use Mott to calibrate Wien filters E/B fields
  • Continue to characterize the Wien filter
  • Continue to learn how to use the Wien quads
• UITF
• GTS

Status on partner projects

• EIC - Group scope areas
• ILC - Status on the ILC

Upcoming meetings

• 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
• Carlos - IEEE Conference on Electrical Insulation and Dielectric Phenomena, Vancouver, BC, Canada October 17-20, 2021
• Photocathode Physics for Photoinjectors, SLAC, November 10-12, 2021 (Marcy, Carlos, ...)

Paper writing updates...

• Joe - Biased anode study
• Riad - GTS magnetized beam paper due
• Shukui - Green fiber laser