11.31 DAQ continues OK

      ASIC settings 2019May19-17.54.03
      slow comparator 0xa

      BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

      all system wide checks OK *except* nnaida7 fails ADC calibration

      detector biases & leakage currents OK - see attachments 1 & 2

      FEE64 temperatures OK - see attachment 3
      good event statistics OK - see attachments 4
      12x < 20k, 21x < 50k, 24x < 100k - cf. yesterday 10x < 20k, 21x < 50k

      1.8.L spectra - see attachments 5 & 6
      nnaida1 74 ch FWHM, nnaida3 78 ch FWHM - same as yesterday
      p+n FEE64s 1.8.W spectra 20us FSR - attachment 7
      n+n FEE64s 1.8.W spectra 20us FSR - attachment 8
      no indication of light ions with beam to ZDS & F11

      FEE64 Rate spectra - attachment 9

      Check ASIC Control *all* FEE64s & ASICs
      zero all spectra

17.21 detector biases & leakage currents OK - see attachments 10 & 11

      FEE64 temperatures OK - see attachment 12
      good event statistics OK - see attachments 13
      11x < 20k, 19x < 50k, 21x < 100k - cf. 11.30 today 12x < 20k, 21x < 50k, 24x <100k
      increased rates observed for nnaida17, 20 & 23 - all DSSSD#1 - nnaida22 ~15k -> ~30k

      Check ASIC Control *all* FEE64s & ASICs
      zero all spectra

      cycled DSSSD#1 bias - no change
      
      nnaida2 - no good events
      unable to DAQ stop nnaida20 & nnaida23
      unable to DAQ reset nnaida20 & nnaida23
      obtain timeout errors from nnaida20 and DAQ error status for nnaida20 & nnaida23
      reboot nnaida20 & nnaida23
      DAQ reset
      DAQ setup

      ASIC settings 2019May19-17.54.03
      slow comparator 0x64 -> 0xa

      Check ASIC Control *all* FEE64s & ASICs
      zero all spectra

      still observe increased rates for nnaida17, 20 & 23 - all DSSSD#1 - nnaida22 ~32k

18.05 DAQ statistics return to ~normal - attachment 14
      10x < 20k, 21x < 50k, 24x < 100k
              11.31 17.21 18.05
      nnaida17  13k  100k  43k
      nnaida20  59k  136k  70k
      nnaida22  16k   32k  26k
      nnaida23  46k  111k  53k