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 12:36:49 2025
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10.00 Investigating DSSD2 (MSL BB18-1000 3058-9) missing channels, found broken bond wires on rear side (~1/4). Replaced with 3058-3. Stack order now: | 3058-4 beam | 3058-3 | 2998-23 | 3058-5 | 3058-6 V 3058-7 12.00 All detectors, including the new replacement bias correctly (see att. 1). 14.00 Shunji has mentioned moving AIDA+BRIKEN forward by ~1m due to concerns about focusing the accurately at such a rearward position. The afternoon was spent removing the EURICA rails to enable the push forward of AIDA+BRIKEN. 18.00 The DAQ was set running with the new detector included. All system checks passed apart from nnaida19 ADC calibration. Pulser peak widths are mostly ~70-90ch for all FEEs. This is similar to Tuesday for the n-side FEEs (att. 2-4) and an improvement for the p-side FEEs (att. 5-7). Having said that, some spectra show peaks with shoulders or tails and a few feature multiple discreet peaks. We will look at this over the next couple of days, depending on when the final move/alignment of AIDA+BRIKEN is completed. Complete table of pulser FWHM nnaida# | Pulser FWHM (ch) | Comments 1 | 64 | 2 | 168 | Peak has shoulder 3 | 77 | 4 | 74 | 5 | 79 | Shoulder 6 | 86 | Shoulder 7 | 80 | 8 | 78 | 9 | 68 | 10 | 70 | 11 | 80 | 12 | 85 | 13 | 70 | 14 | 65 | 15 | 92 | Wide secondary peak in ASICs 1&4 of FWHM ~900ch @ 45k. Only few counts high (~1% height of pulser peak). Noise 10x height of pulser. 16 | 99 | Noise peak ~10x height of pulser peak. 17 | 70 | Low E tail. 18 | 75 | 19 | 96 | 20 | 83 | 21 | 68 | Additional peaks either side of pulser: approx. relative heights > (1/30) (1) (1/100) 22 | 69 | 23 | 108 | Noise peak ~10x height of pulser peak. 24 | 110 | Noise peak ~10x height of pulser peak.
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