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:	Sat Mar 29 12:29:15 2025
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> 10.18 DAQ continues OK to file May19/R5_1 > > alpha background > > ASIC settings 2018Oct03-13.26.58 > except slow comparator 0xa -> 0x64 > > BNC PB-4 Pulser OFF > > 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 > > Merger OK - see attachment 5 > TapeServer OK - see attachment 6 > > 1.8.W spectra 20us FSR - attachments 7 & 8 > 1.8.W spectra 20ms FSR - attachments 9 & 10 > > Julabo FL11006 chiller set point +20 deg C actual +20.0 deg C - water topped up > Temperature +24.8 deg C dew point +8.3 deg C RH 35.3% > > 10.42 DAQ stop May19/R5_2 > > slow comparator 0x64 -> 0xa > Check ASIC Control all ASICs & FEE64s > > 10:52 AIDA inserted ~4cm into DTAS > 60Co (~40kBq) + 137Cs (~8kBq) sources located approximately 4cm in front of the front face of the snout > > 10.54 DAQ start May19/R6 > > good event statistics OK - see attachments 11 > all FEE64s <100k, 9x < 20k > data rate 4.9Mb/s 0.64M data items/s > > 11.04 nnaida17 good events c. 350k returns to 13k following Check ASIC Control (nnaida1 OK - see > https://elog.ph.ed.ac.uk/AIDA/801 ) > AIDA disc statistics indicate that fast discriminators were source of higher rate - next time this > happens we should check HitRate to see whether this is a specific channel or channels and possibly > mask > > 11.17 DTAS DAQ issues correlation scaler reset > AIDA data file May19/R6_3 > > use files from R6_4 > > 11.39 DAQ stop file May19/R6_8 > > nnrpi1 is offline - we suspect wrench or power tool placed too close to RPi when we moved AIDA > into DTAS and we jostled one or other of the cables connected to nnrpi1 > > nnrpi1 power cycled to reboot > all FEE64s OK > USB ac mains relay controls recovered OK > CAEN N1419 contrs recovered OK > > 11.48 AIDA withdrawn from DTAS for installation of upstream (CH2)n shield and additional Pb wall > > 11.52 DAQ starts to file May19/R7 > > alpha background resumes > > ASIC settings 2018Oct03-13.26.58 > except slow comparator 0xa -> 0x64 > > BNC PB-4 Pulser OFF > > 18.06 DAQ continues ok, on file May19/R7_0 > > all system wide checks OK except nnaida7 fails ADC calibration > > detector biases & leakage currents OK - see attachment 13 > > FEE64 temperatures OK - see attachment 14 > good event statistics OK - see attachment 15 > > Merger and TapeServer ok > > Temperature +25.0 deg C dew point +4.4 deg C RH 27.0% > > > > Encoding: HTML ELCode plain Suppress Email notification

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