Apr 4, 2023 - CIS Group Meeting

Stream of consciousness agenda...

• Property validations are now due April 30th
• Safety - everyone's doing pretty good, thanks - keep it up
• Spring/summer vacations on the horizon

• Division is asking us to finalize all work travel requests through Sep 30...
  • May - IPAC'23 (Greg/Aziz/Joe) and LCWS (Andriy/Carlos)
  • Jun - Quantum Meeting (Riad)
  • Jul - ?
  • Aug - ?
  • Sep - ?

• Papers and proceedings...

(Gabriel) PSTP Penning cell Wien filter

(Josh) Charge lifetime improvement of biased CEBAF photogun

(Greg) A Compton polarimeter for SRF photoinjectors

(Max) Upgraded Injector Test Facility

(Joe) Positron white paper

• Proposal status...

(pending) - SLAC/KEK/JLAB HEP - Supports ILC PES and e+ target (Carlos, Andriy)

(pending) - DOE ECA - PES with 1000x better vacuum (Mamun)

(due 6/23) - LDRD PEPPo-II (Max)

Jun'23 - CBE (Marcy)

Sep'23 - Comtra (Riad)

Sep'23 - HVINS (Carlos)

Sep'23 - Robust (Joe)

• CEBAF PES jobs...
  • 200 kV gun - bake out, laser alignment, HV conditioning, gun kick/spot move, picks bias voltage
  • 200 kV Wien - 20 Amp PS, E/B spin calibration, benchmark model
  • Viewer/Harp/Kicker - fix short, add chopper valve/bake region, add new kicker magnet
  • Hall A laser jobs - remove ML, install repaired 250/499 board
  • KL jobs - install new amplifier for KL, test 499/32 setup, measure D pulse length, and laser size
  • Moller jobs - install IA in Hall D path, measure IA rise time, review RTP setup with I&C

• GTS
  • High voltage insulator/plug tests ongoing
  • TE011 cavity...?
  • Eventually GTS could go to LERF

• UITF rest of this year...
  • Now operates like GTS with an OSP, Jessica safety warden and Joe POC
  • Focus will shift to using UITF to test photocathode lifetime/polarization (Greg, Aziz)

• Students (Sami, Sunil, Aziz, Greg, Kawser, Sohaib)