MPS Minutes 20210527

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Present: MA, RC, AD, HH, KL, RN, AL (recorder)

Second stage trip

HV BLM issue (iseg)

E-hall work

  • AL, MA connected all detectors in e-hall on Tuesday and tested all PMTs with LEDs except EHAT:PMT4, which had an SHV connector on LED cable in the hall instead of BNC. But label was correct. HH to replace connector after meeting.
  • Also tested all LICs by ramping up voltage and checking response.
  • AL changed all high energy labels on the roof and reconnected things.
  • MA reconnected all Ar lines. Now have sufficient flow rate. But turned off Ar for now until we expect beam.
  • Helmholz coil was installed this morning. AL, MA to install low energy detectors today. And install spare detector for diagnostics as requested by Brandon.
  • After low energy detectors are installed, work in e-hall should be finished for the moment.

Fibre

  • No update
  • MA to test PMT
  • Might use empty channel on module 1

AOB

  • HH replaced broken HV connector on roof for ELBT:PMT1C.
  • AD to correct LED label in epics on driver from EHBT:PMT4 to EHAT:PMT4.
  • MA: Wiki now accessible without vpn connection. Should be ok, as documents are only linked and not uploaded. To access those one still has to use vpn.
  • AL still needs to write up doc for LED calibration. For LICs, we'll probably just use regular spills (in between targets for instance) to test LIC response in the future.
  • MA, AL to do Post-Mortem tests.
  • AD approved Martin's document in docushare.