21:10 After all of the works in S4 today the noise in the system was considerably worse
      It was decided that before starting a new alpha run a powercycle would be performed.
      The powercycle has had no effect on the rates. They are still terrible.

      The difference between yesterday and today is:
      - Adaptor cards for FEE9 and 13 were re-aligned as they were previously misaligned
      - bPlast has been plugged in and biased

      All system wide checks ok
      Statistics threshold at 0xa - attachment 1
      Rate spectra (FEE5 does have events in all channels just noise is dominated by a few) - attachment 2
      Waveforms - attachments 3 and 4

      Pulser turned off and threshold raised to 0x64
      Statistics - attachment 5

21:19 Alpha run started to May21/R4*


08:51 DAQ continues OK - file May21/R4_23

      FEE64 temps OK - attachment 8
      ADC data items OK - attachment 9 
      1.8.W spectra - attachments 6 & 7
       no change cf. yesterday pm
      Grafana - most recent 12h DSSSD bias & leakage current - attachment 10
      DSSSD biases & leakage currents - attachment 11
      Tape Server/Merger - attachment 12

 09:44 R4 stopped