June 29th 2014¶

Goal : To do an activation run at 4V beam loss double rate
To do a TOF calibration
To do a CKOV HV scan and threshold scan

Issues encountered in setup and hall closure¶

• Initial difficulty putting Q1 and Q2 into remote mode due to the operators not resetting the interlocks properly
  - Problem was corrected before search of the hall was completed
  - Magnet operators will need to be reminded periodically of magnet power on procedures.
• The high voltage crates were not communicating with the high voltage control
  - Was traced to a flakey serial port connection. A more robust solution will have to be found.
• TOF2 ADCs and KL TDCs were not available for run.
  - Was the result of partial progress in the reorganization the DAQ trigger.
  - Will be corrected with the completion of the work on the DAQ trigger.

Issues encountered during the run¶

• Neutron monitor readout broken
  • webcam also pointing in the wrong direction (i.e. no backup in place for EPICS readout)
  • webcam fixed during a Controlled Entry
• Confusion over shifter rostering
  • 1 left early
  • other missed lunch
• Confusion regarding ISIS and MICE operations
  • ISIS rep rate and unexpected losses in SP 1 & 2
  • ISIS BLM app still unavailable via C&M menu
• Run control not available
  - In progress upgrades to the MLCR computing systems had not filtered into run control.
  - Run control was not tested with DAQ because of Ckov HV problems (above).
  - Explicit instructions for bringing the run control up from an "off" or "fail" state not available.
• DAQ produced fatal trigger mismatches on almost all runs.
  - Yordan suggested to cycle the power in the affected TDC crate and to remove and reinsert the affected Flash ADC card
  - Resulted in a long (5-10 minutes) turn around between runs because the procedure would not work every time.
  - Problem is believed to be hardware related; possibly in the TDC crate power supply. Component will need to be identified and fixed.
• Q123 control crate wrongly turned off at end of run (significant chance of damaging power supply)
  - Instructions in MLCR. Shifters should consult documentation if in doubt.
• Poor and confused preparation
  • MOM did not start Hall preparation work sufficiently in advance (~6 weeks)
  • Interim workarounds still not documented on Web_Whiteboard even since last October