Wednesday, March 20, 2019, 11:00 am EST

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1. Dial Toll-Free Number: 1-888-240-2560 (U.S. & Canada)
2. International participants dial:
Toll Number: 1-408-740-7256
3. Enter meeting ID:140287970

Desktop sharing:
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Agenda

Meeting room= F227 in Cebaf Center

General

• Discussion of test
• Chicane survey results

Laser

• Laser update
  • Plans during installation period
  •  !0 W fiber amp available April 8
  • additional 10 fiber amp in procurement
  • Seed laser setup
  • Polarization scan tests?

Photon Detector

• GSO detector status
  • Intend to take the GSO back to CMU so it can be prepared for PREX (presently has CREX tube+base)
  • Triggered sums + snapshots were repeatedly lost during today's test (likely due to excessively large rates) --> will investigate this week
  • Collimator during PREXII (i.e. can we modify/remove it?)
  • Need to find solution for horizontal finger scintillator
    • Maybe just passing it through an amplifier is enough, or maybe just needs a different PMT
  • DAQ missing "Beam Modulation" signal (Will get from Victoria whenever they have it available)
• Online analysis
  • Is the Compton edge larger than expected? [1]
  • Accumulator 0 asymmetries [2]

Electron detector

• Update on test plans
  • Signal amplification
  • Diamond
  • HVMAPS