Jan 4, 2024 - CIS Group Meeting

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General updates

1. Appraisals and 2024 expectations

2. The lab transitions to using ePAS on Monday Jan 8.

  • Who has issued an ePAS already? ...who thinks they'll need to issue one?

3. Start wearing your security badges, above waist and photo side out.

  • Exception is when it creates a hazardous situation, working with equipment or machinery.

4. Upcoming meetings

  • JLAAC (Jan 16-18) - Riad/Moller, Carlos/e-mA, Andriy e+/target
  • USPAS (Jan 22..Feb 2) - Gabriel
    • JLab Tour Sat 27th, MCC-HallD-TestLab-UITF (Matt, Yan, Joe, volunteer?)
  • 11th International Workshop on Mechanisms for Vacuum Arcs (Mar 3-7) (Carlos, Gabriel)
  • IPAC24 (May 19-24) - Attendees TBD (Aziz, Kawser, Riad, Andriy, Joe)

5. Paul is asking for Program Deputies for 2024 - CIS should volunteer 1 or 2

  • Who has been PD already?

6. Publication status -

  • Riad et al., "High precision fundamental physics experiments using compact spin-transparent storage rings of low energy polarized electron beams", Physics Letters B, Volume 843, 2023, 138058, ISSN 0370-2693, https://doi.org/10.1016/j.physletb.2023.138058
  • Matt et al., "High figure of merit spin polarized electron sources grown via MOCVD," Appl. Phys. Lett. 123, 222102 (2023), https://doi.org/10.1063/5.0170106
  • Greg et al., "A Compton transmission polarimeter for DC and SRF electron photo-injectors", submitted to NIM-A
  • Josh et al., "Charge Lifetime Improvement of the CEBAF Spin-Polarized Photogun Using a Biased Anode" ~80% done
  • Max et al., "UITF Booster paper" ~50%?

7. CST license renewal, group pool with SRF (contact Shaoheng)

8. UITF R&D program (approximate sequence)

  • Jan ~ Restore
  • Jan ~ Gun focal length assessment with 12.8 mm active area
  • Feb-Mar ~ ODU and UCSB photocathode studies
  • Mar-Apr ~ Sb lifetime enhancement
  • TBD ~ Nanostructured photocathode studies
  • TBD ~ Brock Polarimeter
  • TBD ~ GEM studies for Hall A/C

9. SAD jobs

  • Musts - FX repair, 18" gun install, Laser room code update, Degrader installation
  • Shoulds - RTP HV driver installation, seed laser chassis upgrade,
  • Likes - Move HV isolation location

10. Go around the room...

  • Status, concerns, beam studies, proposals, etc.
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