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 12:37:09 2025
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Per the instructions provided by https://elog.ph.ed.ac.uk/AIDA/331 added Servisol Heat Sink Compound to each of the 24x FEE64s currently installed (plus spare FEE module stored in the B3F AIDA storage area). Before adding the Servisol Heat Sink Compound - https://elog.ph.ed.ac.uk/AIDA/349 (attachment 3) After adding the Servisol Heat Sink Compound - see attachment 1 With exception of nnaida8 & nnaida10 Virtex temperatures now ~ +44-55 deg C cf. ~ +55-70 deg C nnaida6 shows an increase in temperature for the PSU from ~ +35 deg C to ~ +40 deg C All system-wide checks OK Rate hit patterns for nnaida1-nnaida24 - see attachments 2-3 Should show uniform rate ~130Hz for all channels Observe some channels are missing N.B. 1x AIDA adaptor PCB rev D replaced by spare due to (single) bent ERNI pin All ERNI connectors of all AIDA adaptor PCBs checked before re-installation of FEE modules - it is possible that there are other AIDA adaptor PCBs with bent pins - the system is currently fairly noisy and this could be an alternative explanation of missing channels 16.55 R10 FEE64 configuration includes nnaida19 ASIC settings 2016Aug20-15.34.53 Discriminator masks -> 0x0 From Correlation Status & Control tab change Trigger delay from 0x180 to 0x5 BNC PB-4 Pulser Amplitude 90,000 x5 attenuator IN t_r 50ns tau_d 50us - polarity INT ref, delay MIN, tail pulse External (random) trigger from EG&G Ortec 462 Start output (Range 81.92us) - frequency c. 120Hz B2F/F11 temp +25.0 deg C, d.p. +14.3 deg C, RH 51.6% (Julabo FL11006 set point +20 deg C) FEE64 temperatures - attachment 6 Encoding: HTML ELCode plain Suppress Email notification

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