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AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

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Entry time:	Sat Aug 9 06:25:58 2025
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> Attachment 1 - FEE64 temperatures illustrating (we assume) a faulty PSU temperature sensor for aida07 > > Attachment 2 - FEE64 temperatures following replacement of aida07 > > Attachment 3-5 - 1..W waveforms for aida01 - aida03 - LED settings for aida02 incorrect, aida01 adaptor PCB > incorrectly aligned > > Attachment 6-7 - 1..W waveforms for aida02 and aida04 > > Attachment 8-9 - aida01 - aida04 1.8.L spectra full range and expanded scale > pulser peak width c. 15-20 channels FWHM > > Attachment 10-12 - good events stats for all FEE64s and all statistics for aida01 and aida05 > Note aida01 - aida04 show rates expected, all other FEE64s show very rates due to noise > aida01 - aida04 adaptor PCB are well grounded to FEE64 copper mezzanine/cooling plate, the other > FEE64s are not > > Attachment 13-14 - aida01 - aida04 rate spectra before and after correcting alignment of aida01 adaptor PCB > > Attachment 15 - aida01 - aida04 1.8.L spectra, expanded scale > > Attachment 16 - illustrates high frequency noise (period 5 samples = 100ns) for aida01 which is not observed for > aida02 - aida03 > subsequently determined that this is not due to a possible adaptor PCB fault by changing the adaptor > PCB > Note that with bias turned on this noise did appear when Bias was on but all the other groudning > connectors for aida05-aida12 > were not in effect. > > Attachment 17-19 - PuTTY connection to CAEN 1419ET 4ch high voltage supply illustrating PuTTY, N1419ET configuration > and leakage current with 100V applied to adaptor PCBs (no input cabling or DSSSD connected) > > Note the CAEN N1419ET appears as a 'USB ACM' device and we connect using /dev/ttyACM<n>. Encoding: HTML ELCode plain Suppress Email notification

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