PQB Meeting October 8, 2015

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We will meet in TL 2236 Thursday October 8 at 1:00 pm EST.

For those calling in we'll use the Blue Jeans [1] audio conference system.

Phone number: 1-888-240-2560
Meeting ID: 3528502673#
Meeting URL: http://bluejeans.com/3528502673


  1. Ed Folts: Hall A beamline progress report
    1. Work update (September 21, 2015): media:Parity_beam_line_work_9-21_update.pdf media:Parity_beam_line_work_9-21_update.docx
  2. Kent Paschke: Hall A Fall Beam Tests: media:NovemberPQBStudies.pdf

Notes from this meeting:

  • The earliest for beam in Hall A is November 16 and the goal is 11 GeV and 85 µA.
  • Bob Michaels et al.: very good progress with Hall parity DAQ and analysis and start working on Injector parity DAQ.
  • Helicity board can go up to 2.5 kHz reversal. No heating problem for the Pockels Cell HV optical switch.
  • Hall A Progress Report:
  1. Hall C double raster installed in Hall A
  2. Cables for cavities all run from rack to Counting House
  3. Still waiting on cavity receivers from John Musson
  4. Signal cables from halo monitors ready and available in Counting House and HV cables connected to supply
  5. Waiting on halo detectors and target (fork) to arrive from Virginia Tech
  6. Plan to install halo target before Harp work
  7. Halo signals are readout in scalers and should be written to EPICS channels for MCC to use
  8. Reinstate the EPICS readout of halo rates
  9. Halo detectors may not have shielding this fall
  10. For lumi, there maybe a need for a thick carbon solid target