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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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DESPEC |
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Message ID: 1
Entry time: Thu Sep 6 15:11:17 2018
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Author: |
OH, TD |
Subject: |
Tuesday 4 September - Thursday 6 September |
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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>. |
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