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:

Wed Jun 12 01:54:04 2019

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09:54 DAQ Continues ok with merger running at ~ 560k data items per second

ASIC settings 2019May19-17.54.03
      slow comparator 0xa

BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range, variable min. c. 2.5Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

System wide checks all ok - except nnaida7 fails adc calibration

Bias and leakage currents ok - attachment 1

FEE Temps ok - attachment 2

Good event statistics good - attachment 3

Merger and tape service good - attachment 4 and 5

16:33  DAQ continues OK with merger running at ~ 600k data items per second

ASIC settings 2019May19-17.54.03
      slow comparator 0xa

BNC PB-4 Pulser 
      Amplitude 90,000
      x5 attenuator IN
      Frequency 25Hz range, variable min. c. 2.5Hz
      t_r 100ns, tau_d 50us
      - polarity
      Delay MIN, tail pulse

All system-wide checks OK except nnaida7 fails ADC calibration

Bias and leakage currents OK - attachment 6

FEE temperatures OK - attach 7

Good event statistics OK - attach 8
      check nnaida10 & nnaida20 counts vs. rate

Merger and tape service OK - attachment 9 & 10

17.00 Average FEE64 rates since last DAQ stats zero @ 17.05 yesterday - data from attachment 11

DSSSD#1   count      rate  
                           24h   most recent
      nnaida17 	1914894752 22.1k 23.2k
      nnaida20  3061905664 35.4k 35.6k
      nnaida22  1872820000 21.7k 21.8k
      nnaida23  2217883584 25.7k 24.8k

DSSSD#2

nnaida18  1760374528 20.3k 21.1k
      nnaida19  1402771232 16.2k 66.6k => 32 bit overflow => 4.3E+09 + 1.4E+09 = 5.6E+09 => 65.9k
      nnaida21  2038432092 23.6k 23.5k
      nnaida24  2844103808 32.9k 31.3k

Conclude rates have bee stable overnight - no evidence of noise transients for DSSSD#1 to 150-250k good
events/s

17.15 DAQ stats zero'd
      all spectra zero'd

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Attachment 1: