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 12:26:02 2025
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> 09.00 DAQ continues OK > Current file May2017/R32_239 > > Detector biases; leakage currents OK - see attachments 1 & 2 > FEE64 Temperatures OK - see attachment 3 > good events; statistics OK - see attachment 4 > Some error messages reported by merger yesterday but none overnight - see attachment 5 > > all system wide checks OK except ADC calibration of nnaida1, 21 and nnaida1 clock status (status =6) > > 09.33 E17/F11 ambient temperature +24.0 deg C, RH 38.0%, d.p. +8.8 deg C > Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 75%) > > 09.35 Analysis of R32_259 - OK see attachment 6 > > 10.50 Offline analysis R32_277 - ADC & disc data synchronised - see attachments 7-9 > > 11.00 DAQ stop OK > File May2017/R32_280 > > Check ASIC control x2 > Zero all spectra > > 11.05 DAQ go > File May2017/R33 > > BNC PB-4 > Amplitude 90,000 > x5 attenuator IN > t_r 100ns tau_d 50us > - polarity > frequency 25Hz range > delay MIN, tail pulse, INT ref > > ASIC settings 2017Mar27-16.12.39 except > slow comparator 0x0a > LEC/MEC fast comparator 0x20 > > 15.00 Merger crashed (SEGV) - see https://elog.ph.ed.ac.uk/AIDA/607 > > DAQ stop > Restart Merger > DAQ stop OK following transient nnaida1 timeout > > Close merger/tapeserver browser, kill httpd for merger/tapeserver,merger and tapeserver terminal server > sessions > Disable histogramming and data transfer #1 > DAQ reset, setup > Restart merger and tapeserver > Enable histogramming and data transfer #1 > > all system wide checks OK except nnaida1 & nnaida21 fail ADC calibration, nnaida1 clock status=6 > > 15.18 DAQ start > File May2017/R34 > > 15.25 no merger error messages > nnaida1 & nnaida2 good events high - ~100k and ~120k respectively - see attachment 10 > > 16.24 removed R32 > System wide checks - ASIC clock timestamp test fails on all nnaidas. Synchronised clocks. ASIC clock test > passes. > FEE temperatures, leakage currents - OK > Merger reports > > Merge: Restarting from timestamp 1 or greater > Merge: Starting at timestamp 27d1e55c00a0 > Merge: Trying to add items to Q index 21 (Link 21) but queue already full > > Probably as a result of ADC clock synchronisation. > > 17:03 Used analyser on R34_23. No timewarps, negligible dead time. All other values as normal. > > 17.19 FEE64 temperatures, leakage currents - OK > nnaida1 & nnaida 2 good events still high - ~100k roughly > No further messages from merger > > 17.45 DAQ continues OK > BRIKEN reports increased neutron and gamma activity. No apparent effect on AIDA rates. > > 18.50 DAQ continues OK > FEE64 temperatures, leakage currents - OK > No merger errors > Used analyser on run R34_49 - no timewarps, rates as expected > > 19.30 BigRIPS optimisation ongoing. DAQ continues OK > FEE64 temperatures, leakage currents - OK > No merger error messages > No panics from USB device monitor > Used analyser on R34_58 - no timewarps, ADC data format ~ 1Mhz, other rates OK, > highest dead time = ~2 s/254 s on nnaida 2 > > 20.00 BigRIPS optimisation ongoing. DAQ continues OK > FEE64 temperatures, leakage currents - OK > No merger error messages > No panics from USB device monitor > Used analyser on R34_63 - no timewarps, ADC data format ~ 1Mhz, other rates OK, > highest dead time = ~1.3 s/255 s on nnaida 2 > > 20.15 BigRIPS reports beam optimisation may be over soon. > DAQ continues OK. > > 20.47 BigRIPS optimisation ongoing. DAQ continues OK > FEE64 temperatures, leakage currents - OK > No merger error messages > No panics from USB device monitor > Used analyser on R34_76 - no timewarps, ADC data format ~ 1Mhz, other rates OK, > highest dead time = ~1.1 s/255 s on nnaida 2 > > 21.49 BigRIPS optimisation ongoing. DAQ continues OK > FEE64 temperatures, leakage currents - OK > No merger error messages > No panics from USB device monitor > Used analyser on R34_90 - no timewarps, ADC data format ~ 1Mhz, other rates OK, > highest dead time = ~2.0 s/258 s on nnaida 2 > > 23.05 BigRIPS optimisation ongoing. DAQ continues OK > FEE64 temperatures, leakage currents - OK > No merger error messages > No panics from USB device monitor > Used analyser on R34_109 - no timewarps, ADC data format ~ 1Mhz, other rates OK, > highest dead time = ~1.9 s/256 s on nnaida 2 Encoding: HTML ELCode plain Suppress Email notification

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