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  • Detector mounted to motorized stage, powered up nominally at 0845.  Allow 15 min to stabilize.
  • Failed 'epix10k_pedestals' script.  Detector looks good in AMI (considering no peds).
  • ~0930 Q1 tripped....reset with wider env limits.
  • Silke thinks pedestal script is fixed...'epix10_pedestals', then 'makepeds' to load.  Seems good.  Check timing first.
  • Move integration window via acqToasicRDDelay (1 unit = 10ns).  Started ~78032, verified off at 68032, so good @78k.
  • Ag behenate, all five gain settings.  No attenuation.  Hi/Lo gain autorange is no good.  Quad 1 is way off.
  • Set fixed high, make new pedestal, record ring shape for geometry.
  • While checking motion limits to adjust ring coverage, we handed off the beam to AD and they were unable to return it for a couple of hours....
  • Record MPOD voltage/currents:

     

     

    ChannelLineVI
    o
    0HV0200.000V0.000A
    1HV1200.0000.000
    2HV2200.0040.000
    3HV3200.0010.000
    100AVDD06.0064.314
    101DVDD06.0011.484
    102AVDD16.0024.278
    103DVDD16.0001.488
    104AVDD26.0044.276
    105DVDD26.0001.506
    106AVDD36.0024.276
    107DVDD36.0001.541
  • General:  Lack of usable pedestal is causing some trouble, but the loss of beam has made it difficult.  Somewhat mitigated by the fact that this detector has already been extensively run by TVD, and we have other data giving ring/geometry info as well as gain info under flux.  We do have some full-beam rings to study that should include some gain-switching for comparison with previous data.