HallC BCMs

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Hall C BCMS

Experts:  Dave Mack, Steve Wood

BCM calibration procedure

  • This is driven by MCC, but the shift crew must follow along and ensure that the DAQs are running and that the procedure is followed correctly.
  • PDF version is duplicated here: Media:BCMCalibrationv9.pdf (Updated Feb 1, 2020)
NOTE: The most current version is on the DocDB here: https://hallcweb.jlab.org/doc-private/ShowDocument?docid=957

BCM Calibrations and EPICS information

BCM calibration/analysis from Feb 20, 2020 [1]

Coefficients as of Sep 28, 2018 [2]

  • ibcm1
    • field(INPA, "253061.1") # Was 253035
    • field(INPB, "0.0001753829") # Was 0.00016329
  • ibcm2
    • field(INPA, "250361.6") # Was 250360
    • field(INPB, "0.0001811995") # Was 0.00017064
  • iunser
    • field(INPA, "327953") # Was 348695
    • field(INPB, "0.000250")
  • ibcm3H04B
    • Was called ibcm17 - "Hall C BCM 17" (before 9/28/2018)
    • field(INPA, "2096.3")
    • field(INPB, "0.0004832374")
  • ibcm3H04A
    • Was called ibcm4a - "Hall C BCM 4A" (before 9/28/2018)
    • field(INPA, "8660.4")
    • field(INPB, "0.000109376")
  • ibcm3H04C
    • Was called ibcm4b - "Hall C BCM 4B" (before 9/28/2018)
    • field(INPA, "4313.13")
    • field(INPB, "0.0001593386")