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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: 695
Entry time: Fri Jan 31 09:37:47 2025
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Author: |
CC, TD, MP |
Subject: |
Friday 31 January |
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Implantation stack mounted - BB18(DS)-1000 + bPlas + bPlas + 3x BB7(DS)-1000
N.B. aida02, aida09 & aida15 have grounded copper screen (3M 1245 - aluminimum braid to copper screen of ribbon cables) for Kapton PCBs connecting the Samtec ribbon cables to the BB18 DSSSD.
n+n FEE64s aida02, aida04, aida06 and aida08 LK1 fitted
p+n FEE64s aida03 and aida07 LK3 fitted
BB7 aida10 (asics #1-2 p+n, #3-4 n+n)
BB18 p+n FEE64s 9-15, 1-3, 5-12 - n+n FEE64s 2-4 (L-R looking downstream)
10.30 FEE64 power ON
DSSSD bias ON (BB18 only) - attachment 1
leakage current OK
ASIC settings 2024Dec13-17.02.45 restored
p+n FEE64 slow comparator 0xa, n+n FEE64 slow comparator 0xf
Attachments 2-7 WR timestamp aida05 & aida12, system wide check
aida12 & aida05 global clock status 6 - to be checked - OK for initial tests without merger
WR decoder status aida02
per FEE64 Rate spectra - attachment 8
aida10 high rate - BB7 not biased
rates OK for p+n FEE64s, rates high for n+n FEE64s - to be checked
BNC PB-5 pulser ON to p+n FEE64s - no obvious adaptor PCB misalignments
ADC data item stats - attachment 9
rates generally OK
aida10 high - BB7 not biased
aida02 & aida04 n+n FEE64s - rates high - to be checked when bPlas install complete
all p+n FEE64s connected to BB18 <10K except aida05 25k - very good!
BNC PB-5 settings - attachment 10
WR timestamps OK - attachment 11
FEE64 temperatures OK - attachment 12
12.15 bPlas driver PCB installed, bPlas cabling and grounds *not* connected yet
ADC data item stats - attachment 13
all rates higher cf. attachment 9
per FEE64 Rate spectra - attachment 14
per p+n FEE64 1.8.L spectra - attachment 15
aida09 pulser peak width 69 ch FWHM = 49keV FWHM
aida14 pulser peak width 50 ch FWHM = 35keV FWHM
per p+n FEE64 1.8.W spectra - 20us FSR - attachments 16-17
per n+n FEE64 1.8W spectra - 20us FSR - attachment 18
DSSSD bias & leakage current OK - attachment 19
ambient temperature +21.6 deg C, d.p. +0.4 deg C, RH 24.4%
FEE64 temperatures OK - attachment 20
DSSSD bias volatge & leakage current OK - attachment 21
CAEN N1419ET ch#0 BB18, ch#1 BB7
Install of bPlas drivers, cabling, grounds complete
ADC data item stats - attachment 22
per FEE64 Rate spectra - attachment 23
all BB18 p+n FEE64s *except* aida05 show very low rates of noise
per p+n FEE64 1.8.L spectra - attachment 24
aida09 pulser peak width 62 ch FWHM = 42keV FWHM
BB18 p+n FEE64s better electronic noise cf. p+n FEE64s not connected to a DSSSD
per FEE64 1.8.W spectra - 20us FSR - attachments 25-26 |
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