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 12:36:47 2025
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09.38 Water flow & temp OK Power ON All system wide checks OK DSSSD HV +120V +5.585uA - attachment 1 CAEN N1419ET grounded output ( internal LK fitted ) plus ThorLabs inline filter standard coaxial cable to aida04, no HV daisy chain aida12, aida03 & aida11 aida03 LK3 fitted aida11, aida03, aida12 LK1 fitted test + & test - daisy chains removed FEE64 temps OK - attachment 2 slow comparator 0x64 ADC data item stats - attachment 3 per FEE64 Rate spectra - attachments 4 1.8.W spectra - 200us FSR - attachments 5-8 test + to aida01 *only* ADC data item stats - attachment 9 per FEE64 Rate spectra - attachment 10 aida01 1*L spectra - attachment 11 pulser peak width 1.8.L 141 ch FWHM ThorLabs inline filter removed ADC data item stats - attachment 12 per FEE64 Rate spectra - attachment 13 pulser peak width 1.8.L 136 ch FWHM 14.15 DSSSD HV +120V +6.610uA Disconnect aida01 ribbon cable drain wire from adaptor PCB gnd aida01 1.8.L pulser peak width 188 ch FWHM - amplitude/structure of noise does not change significantly but observe higher frequency components in addition 1.8.W p+n spectra - 20us FSR - attachment 14 15.20 Switch from HV + to HV - N1419ET ch 3 to ch 2 HV coaxial cable chain aida12, aida03, aida11, aida04 LK1 fitted aida12, aida03 & aida11 LK1 removed Connect aida01 ribbon cable drain wire to adaptor PCB gnd DSSSD HV-120V -6.720uA - attachment 15 ADC data item stats - attachment 16 aida01 1.8.L pulser peak width 138 ch FWHM 1.8.W spectra - 20us FSR - attachments 17 & 18 Little observable difference between HV - and +, as expected 16.20 Jumper aida04 adaptor PCB gnd to aida12 adaptor PCB gnd slow comparator 0x64 -> 0xf ADC data item stats - attachment 20 per FEE64 Rate spectra - attachment 21 & 24 1.8.W spectra - 20us FSR - attachments 22 & 23 aida01 1.8.L pulser peak width 99 ch FWHM 17.00 Ground cable from aida04 gnd to aida12 gnd ADC data item stats - attachment 25 per FEE64 Rate spectra - attachment 26 & 27 1.8.W spectra - 20us FSR - attachments 28 & 29 aida01 1.8.L pulser peak width 97 ch FWHM 17.20 Ground cable from aida04 gnd to aida12 gnd to aida02 gnd slow comparator 0xf ~ 150keV ADC data item stats - attachment 30 per FEE64 Rate spectra - attachment 31 1.8.W spectra - 20us FSR - attachments 32 & 33 1.8.W spectra - 200us FSR - attachments 32 & 33 aida01 1.8.L pulser peak width 85 ch FWHM ~ 65keV FWHM => 5s threshold 138keV aida12 1.8.L pulser peak width 58 ch FWHM ~ 44keV FWHM => 5s threshold 93keV aida02 1.8.L pulser peak width 133 ch FWHM ~ 100keV FWHM => 5s threshold 212keV Rate spectra are consistent with these estimates, i.e. observe ~zero rate for p+n channels ( except hot channels ) and low ( ~100-200Hz rate per channel ) for n+n channels p+n noise aida12, aida03, aida11 excellent for aida10, aida01 & aida09 good - can probably be improved to match aida12 etc significant improvement observed for n+n side aida12 *.*.W spectra - attachments 34-37 per p+n FEE64 1.8.W spectra - 200us FSR - expanded scale - attachment 38
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