ELOG DESPEC

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

DESPEC

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Entry time:	Sat Mar 29 20:13:03 2025
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11:00 Visual inspection FEE64 adaptor PCBs & cabling aida02 ground from/to other FEE64s disconnected - re-connected aida01, aida09, aida12 - ground cabling screws to Lemo 00.250 housings loose - tightemed 12:50 Cooling water pressure & temperature OK - attachments 1 2 12:59 relay #1 power ON 13:01 relay #2 power ON 13:07 aida06 starts - panic during startup, automatic restart following 3 minute timeout DAQ reset, setup Check ASIC Control - browser tab timeout AIDA MIDAS HTTPD server console log - attachment 3 Appears to have restored ASIC settings 2024Dec13-17.02.45 saved yesterday aida10 ASICs #1 & #2 positive input, ASICs #3 & #4 negative input slow comparator 0xa (all p+n junction FEE64s and aida10), 0xf (n+n Ohmic FEE64s) 13:28 tar ASIC settings - attachment 4 [npg@aidas-gsi]$ cd /MIDAS/FEE_ASIC [npg@aidas-gsi FEE_ASIC]$ tar cvf /tmp/FEE_ASIC.tar . System wide checks Sync ASIC clocks - attachment 5 Clock, ADC calibration, WR decoder, FPGA timestamp, PLL checks - attachments 6-11 all OK except aida02 WR decoder error WR timestamps OK - attachment 12 FEE64 temps OK - attachment 13 13:45 Detector bias ON - attachment 14 BNC PB-5 pulser settings - attachment 15 Pulser connected to all p+n junction FEE64s except aida10 ADC, DISC, PAUSE and MBS correlation scaler stats - attachments 16-19 aida02 rate significantly lower than yesterday - https://elog.gsi.de/despec/Implantation+Stack/8 high rates observed for aida08, aida11 and aida14 - which are not connected to a DSSSD! per FEE64 Rate spectra - attachment 20 per p+n junction FEE64 1.8.L spectra - attachment 21 aida09 pulser peak width 56 ch FWHM = 39 keV FWHM consistent electronic noise for all p+n junction FEE64s (cabling+DSSSD) electronic noise of p+n junction FEE64s (cabling only) higher and more variable cf. https://elog.gsi.de/despec/Implantation+Stack/8 attachment 5 per p+n junction FEE64 1.8.W spectra 20us FSR - attachments 22-23 per n+n Ohmic FEE64 1.8.W spectra 20us FSR - attachment 24 WR timestamps OK - attachment 25 14:43 DAQ STOP Data transfer enabled Select Tape Server -> Next Run DAQ GO data file R3 Merger, Tape Server - attachments 26-27 data transfer rate c. 900k data items/s cf c. 300k data items/s yesterday https://elog.gsi.de/despec/Implantation+Stack/8 16:45 DAQ STOP Data transfer disabled Detector bias OFF FEE64 power OFF Encoding: HTML ELCode plain Suppress Email notification

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