09.30 Systems check

      CAEN N1419ET only channel #0 ON, all other channels off
      DSSSD bias -120V leakage current -5.500uA - attachment 1
      Leakage current of 5.5uA corresponds to c. 3nA/cm2/100um indicating high quality device ( assuming ambient temperature c. 21 deg C )

      FEE64 temperatures OK *except* aida02 ASIC temperature - attachment 2
      N.B. aida02 ASIC temperature sensor faulty - reading > 500 deg C - probably poor connection FEE64-ASIC mezzanine

      All system wide checks OK *except*
       aida04 WR decoder status 0x10 - attachment 3

      WR timestamps OK - attachment 4

09.42 NH reports "195au implanting in aida, Ca 100 per spill"

      ASIC settings
       LEC/MEC slow comparator 0x64, LEC/MEC fast comparator 0xff, HEC comarator 0x2
       aida02 and aida04 negative input polarity ( n+n Ohmic strips ), all other FEE64s positive input polarity

09.46 all histograms and stats zero'd

      ADC, DISC, PAUSE, RESUME & Correlation Scaler data items stats - attachments 5-9

      per FEE64 1.8.W spectra - 20us FSR - attachments 10-11
       aida08 noise significantly lower than all other FEE64s

      per FEE64 1.8.H spectra - attachments 12-13
       data suggests 195Au ions are focussed on central Si wafer, ion energies to c. 5GeV, no evidence lower A/Z ( fission ) ions with lower energy loss

      per FEE64 1.8.L spectra - attachments 14-15

      per FEE64 Rate  Stat spectra - attachments 16-19

      Merger, TapeServer - attachments 20-21
       Merger idle !?
       Tape Server no storage mode but forwarding data at c. 1Mb/s
       data file R31

13.30 NH reports "beam over"

      DSSSD bias -120V leakage current -6.500uA - attachment 22

      FEE64 temperatures OK *except* aida02 ASIC temperature - attachment 23
      N.B. aida02 ASIC temperature sensor faulty - reading > 500 deg C - probably poor connection FEE64-ASIC mezzanine

      All system wide checks OK *except*
       aida05 & aida07 FPGA timestamp errors - attachment 24
       aida04 WR decoder status 0x10 - attachment 25

      WR timestamps OK - attachment 26

      ADC data items stats - attachments 27

      per FEE64 Rate spectra - attachments 28-29

      per FEE64 1.8.L spectra - attachments 30-31

      per FEE64 1.8.H spectra - attachments 32-33

      per FEE64 1.8.W spectra - 20us FSR - attachments 34-35

      Merger, TapeServer - attachments 36-37
       Merger idle !?
       Tape Server no storage mode but forwarding data at c. 1Mb/s
       data file R31

20:30 AIDA Powered down

      DSSSD remains biased at -120V, monitor the current over the weekend (Grafana)

      Merger still showing idle... "no data to storage" makes xfer Links disappear?

      Tape server stopped

11.20 Saturday 23 March

      Grafana DSSSD bias/leakage current monitor screenshot - attachment 38

      https://despec-vm-01.gsi.de/grafana/d/6SAfgl0Mz/aida?orgId=1&refresh=1m&from=now-2d&to=now

      DSSSD#1 leakage current recovered to c. pre-beam values

08.05 Monday 25 March

      Grafana DSSSD bias/leakage current monitor screenshot - attachment 39