AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
AIDA
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Sat Mar 29 11:35:31 2025
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10.15 DAQ continues OK Current file May2017/R31_239 Detector biases; leakage currents OK - see attachments 1 & 2 FEE64 Temperatures OK - see attachment 3 good events; statistics OK - see attachment 4 No warnings/errors reported by merger since DAQ GO - see attachment 5 *all* system wide checks OK *except* ADC calibration of nnaida1, 21 and nnaida1 clock status (status=6) 10.30 E17/F11 ambient temperature +23.8 deg C, RH 40.9%, d.p. +9.6 deg C Julabo FL11006 set point +20 deg C, actual +20.0 deg C, water level OK (c. 95% - refilled) 10.35 Layouts 1, 3, 4, 7 and 8 - see attachments 6-13 Note - as expected, zero HEC events, layouts 5 & 6 not shown 10.58 DAQ stop - transient timeout nnaida1 - followed by successful stop File May2017/R31_248 Delete R31 11.12 Disable data transfer DAQ GO - transient timeout nnaida1 - followed by successful start nnaida1 system console - see attachment 14 12:00 Moved plastic veto scintillator downstream in an attempt to reduce noise Rates in noisy FEEs reduced by 20-30% 14:30 DAQ continues OK Found that pulser induces counts in some HEC (nnaida20, 14 in particular). See attachment 15. Pulser off removes these events completely. These events could be mistaken for implantation events during data acquisition. Increasing the fast comparator threshold HEC from 2 -> 3 suppresses the events. Increasing the threshold to 4 does not appear to have further effects. Even with the increased threshold some HEC (e.g. 1.0H) still see the pulser. See attachment 16 (fast comparator threshold HEC was 0x3). Checked data is synchronised in file R32_33 15:29 Set the threshold back to 2. We will perform this cut off-line in the analysis.
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