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 11:17:15 2025
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> > 09.40 DAQ continues OK > File /TapeData/Oct17/R1_280 > > BNC PB-4 Pulser frequency switched from 250Hz to 25Hz range > > 09:54 ASIC Temperatures - Attachment 1 > Bias and leakage currents ok - Attachments 2 & 3 > Statistics - Attachment 4 > > 10:19 Output of analysis of R1_291 - Attachment 5 > > 11:02 Pulser widths measured before changing jumpers (In log book) > DAQ stopped on Run R1_304 > > 11:31 All field plane jumpers removed (Jumpers 1&3) > System wide checks ok > ASIC load check ok > > 11:37 DAQ started online only > Statistics - Attachment 6 > FEE temperatures - Attachment 7 > > 11:46 Layout 1 - Attachments 8 & 9 > Layout 2 - attachments 10 > > 13:38 Layouts 3 - Attachment 11 > Layout 4 - Attachment 12 > Pulser widths measured using 1.8.L spectra. > Most channels show an increase in noise with the FWHM increased by ~5-10 channels > (Recorded in log book) > > 13:55 Layout 7 p-side waveforms - Attachments 13 & 14 > Layout 8 n-side waveforms - Attachments 15 & 16 > For comparison with jumpers on see yesterday's elog entry: https://elog.ph.ed.ac.uk/AIDA/674 > > 14:02 DAQ stopped > > 14:23 PCB ground plane jumper removed from all adapter boards (Jumper 2) > > Bias and leakage currents ok T = 23.0 DP = +8.8 H = 38.7% - Attachment 17 > System wide checks all ok > ASIC load check ok > > DAQ Started > > 14:44 FEE temperatures all ok - Attachment 18 > Statistics - Attachment 19 > > 14:54 Layout 1 - Attachment 20 & 21 > Layout 2 - Attachment 22 > > 15:17 Layout 3 p-side pulser - Attachment 23 > Layout 4 n-side pulser - Attachment 24 > > Pulser widths measured using 1.8.L spectra > > In comparison with just having the FP jumpers removed for channels that were not noisy before they show no > to only minor increases in noise. > > However channels that were previously noisy with all jumpers on show drastic increases in the amount of > noise. Increases in the FWHM of up to 80ch > > 13:55 Layout 7 p-side waveforms - Attachments 25 & 26 > Layout 8 n-side waveforms - Attachments 27 & 28 > > DAQ Stopped > > 16:15 Detector bias turned off as replacing the jumpers is challenging > > 16:55 All jumpers back on. I advise starting with all on the new boards tomorrow and removing if needed. > Pain to put back on when mounted with cables. > > 16:59 System wide checks ok > Bias back on and leakage currents ok - Attachment 29 > > 17:09 Statistics - Attachment 30 > FEE temperatures - Attachment 31 > > By putting the jumpers back the statistics appear to have recovered to a similar level to this morning > > 17:25 FEEs powered down to do a power cycle for Patrick > > 17:50 FEEs powered up > > 18:00 Same javascript errors as yesterday when setting up DAQ > System wide checks all ok > FEE Temperatures ok > > 18:06 DAQ started > Statistics similar to before power cycle - Attachment 32 > Layout 1 looks good - Attachments 33 & 34 > > 18:14 DAQ stopped > > 18:16 DAQ Started > Writing to R2 in /TapeData/Oct17/ > Writing at 11Mb/s > > 18:56 Statistics - Attachment 35 Encoding: HTML ELCode plain Suppress Email notification

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