ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:

Thu Nov 1 00:24:23 2018

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09.24 DAQ continues OK - current file Oct18/R12_116
      alpha background run

09.20 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 *except* nnaida17 c. 400k - see attachment 4
      nnaida2 rate due to one hot channel as before

Merger - Link16 errors reported - see attachment 5
      TapeServer OK - see attachment 6

problem with nnaida17 rate resolved with ASIC check load - see attachment 7
  
      1.8.L spectra - see attachments 7 & 8

N.B. evidence of minimally ionising particles (presumably protons) from beam to F11 E detector
            ~10-15cm Pb bricks were placed within BRIKEN (CH2)n stack to stop heavy particles

1.8.W spectra 20us FSR - see attachments 9 & 10

09.33 DAQ stop - file Oct18/R12_117
      All Oct18/R12_* files deleted

09.34 all spectra zero'd
      DAQ start - file Oct18/R13
      alpha background run

all FEE64 good events statistics OK - see attachment 11

15.11 DAQ continues ok, on file Oct18/R13_2 (alpha run)
      system wide checks ok, except nnaida7 failing ADC calibration
      FEE64 temperatures ok (attachment 13)
      detector bias and leakage currents ok (attachment 14)
      good event statistics ok, except nnaida2 due to one hot channel (attachment 15)
      Merger and TapeServer ok, no errors in terminal

15.20 DAQ stop - file Oct18/R13_2
      
15.24 Lowered slow comparator threshold from 100 to 10
      good event statistics ok (attachment 16)

15.42 took waveforms, triggering ok (attachment 17)
      raised slow comparator threshold to 100 from 10
      start DAQ (R14)
      nnaida22, no statistics showing (see attachment 18)
      subsequent failure to connect to nnaida2

16:44 fixed by rebooting nnaida2 *only*, nnaida2 reset, setup all FEE64s
      slow comparator threshold re-raised from 10 to 100, as default was restored
      DAQ and alpha run restarted (R15)
      Merger and TapeServer ok, no errors in terminal
      good event statistics all ok, except for nnaida2 hot channel (attachment 19)

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