ELOG AIDA

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 19:44:19 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. Encoding: HTML ELCode plain Suppress Email notification

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