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 - please share to my Calendar (as free)

• Division is asking us to finalize all work travel requests through Sep 30...
  • May - IPAC'23 (Greg/Aziz/Joe) and LCWS (Andriy/Carlos)
  • Jun 5-9 - APS DAMOP Meeting 2023 (Riad/Matt Grau)
  • Jul - ?
  • Aug - ?
  • Sep - ?

• Papers and proceedings...

• (Joe) Polarized Beam Dynamics and Instrumentation in Particle Accelerators (USPAS Summer 2021 Spin Class Lectures)
• (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
• (Riad) Electron EDM
• (Riad) Quantum computing

• CIS/IPAC'24 suggestions for invited orals...

• Particle Accelerator Spin-Transparent Storage Rings for Beyond State of the Art Science
• Making Extreme High Vacuum (XHV) commonplace in accelerators
• A new polarized electron injector at CEBAF for parity violation
• PEPPo II : a GeV positron beam experiment at CEBAF

• 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)

• GTS

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

• 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 and laser table electrical isolation with I&C

• 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)

• Student updates
  • Sohaib/REU - spin tracking for CEBAF/Ce+BAF
  • Sami - returned to France, writing his thesis
  • Sunil - wants 15 Mhz bunches this summer to test his model of KL
  • Aziz
  • Greg
  • Kawser