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 12:37:21 2025
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Friday 14th June Authors: TD, DK, CB 08:40 elog appears to be down. Relevant screenshots are in /tmp/june14/ so please upload when we can access Julabo chiller 75% M-H markers Room Temp +24.5 C deg, dew point +8.1 deg C, Room humidity 35.2% Pulser, ASIC settings as yesterday (copy/paste) ASIC settings 2019May19-17.54.03 slow comparator 0xa BNC PB-4 Pulser Amplitude 90,000 x5 attenuator IN Frequency 25Hz range t_r 100ns, tau_d 50us - polarity Delay MIN, tail pulse DAQ continues OK Statistics as before. nnaida19 counter appears to have overflowed and wrapped around See stats.png System-wide checks OK, except nnaida7 fails ADC calibration as before Biases and leak currents reasonable -- see biases.png FEE64 temperatures okay, see fee-temps.png Merger looks okay, ~600k items / sec; see merger.png TapeServer as before, around 4.5 Mbytes/sec; see tapeserver.png 13:52 Pulser, ASIC settings same as this morning DAQ continues OK Statistics as before. See attach 190614_1354_stats. Counts RESET. System-wide checks OK, except nnaida7 fails ADC calibration as before Bias and leak currents OK. See attach 190614_1356_bias FEE64 temperatures OK, see attach 190614_1357_temps Merger keeps running at ~560k items /s; see 190614_1359_merger TapeServer as before. See 190614_tape 17:24 AIDA DAQ crashed by DTAS touching the clock function generator Function generator set at 50MHz square high +5V low 0V 18:38 problem loading ASIC settings - mismatch in slow comparator threshold and shaping time performed save/restore with 2019Jun13-08.56.35 - all looks ok now System wide checks ok except nnaida7 fails adc calibration FEE64 temperatures ok - attachment 12 good event statistics ok - attachment 13 bias/leakage currents ok - attachment 14 18:38 for reals DAQ Stopped R30_0 opened writing to disk Was to test DTAS sync whilst writing to file 18:43 DAQ stopped on file R30_0 18:45 DAQ restarted on file R31 with no writing to disk 21:50 DAQ found crashed (Valencia group believe it crashed around 20:00) Trying to reset FEEs resulted in an error message attachment 15 and 16 Each FEE was rebooted using telnet to avoid a power cycle System reset after reboot System wide checks ok Check ASIC control FEE temps ok DAQ Started again On startup FEEs 17, 20, 22 and 23 were all about 150k All relate to DSSD0 Pressed on kapton and noise went down. Statistics now good 22.45 Review /var/log/messages and observe nnaida15 rebooted at 19.27 - reason unknown This probably explains why DAQ stopped. Jun 14 19:27:32 aidas1 dhcpd: DHCPDISCOVER from 00:04:a3:2a:f3:ac via p2p2 Jun 14 19:27:32 aidas1 dhcpd: DHCPOFFER on 10.1.2.15 to 00:04:a3:2a:f3:ac via p2p2 Jun 14 19:27:32 aidas1 dhcpd: DHCPREQUEST for 10.1.2.15 (10.1.2.250) from 00:04:a3:2a:f3:ac via p2p2 Jun 14 19:27:32 aidas1 dhcpd: DHCPACK on 10.1.2.15 to 00:04:a3:2a:f3:ac via p2p2 Jun 14 19:27:32 aidas1 rpc.mountd[2868]: authenticated mount request from 10.1.2.15:784 for /data10/XilinxLinux/ppc_4xx/rfs/nnaida15 (/data10/XilinxLinux/ppc_4xx/rfs) Jun 14 19:27:59 aidas1 rpc.mountd[2868]: authenticated mount request from 10.1.2.15:864 for /MIDAS@aidas (/MIDAS@aidas) 22.53 ADC data synchronised - attachment 17 23.05 zero DAQ statistics zero all histograms 23.20 Check ASIC Control x1 FEE64 Rate spectra - attachment 18 1.8.L spectra - see attachments 19 & 20 nnaida1 81 ch FWHM, nnaida3 77 ch FWHM p+n FEE64s 1.8.W spectra 20us FSR - attachment 21 n+n FEE64s 1.8.W spectra 20us FSR - attachment 22 23.36 DAQ start file May19/R34_0 DTAS+AIDA correlation test using gamma ray sources Correlation scaler reset issued during R34_0 ASIC settings 2019Jun13-08.56.35 BNC PB-4 Pulser Amplitude 90,000 x5 attenuator IN Frequency 25Hz range t_r 100ns, tau_d 50us - polarity Delay MIN, tail pulse 23.53 DAQ stop file May19/R34_2 nnaida15 did not stop - state unknown - reboot nnaida15 This did not work - unable to reset nnaida15 Closed all FireFox broweser tabs, stopped all servers and restarted 00.14 DAQ start ASIC settings 2019Jun13-08.56.35 BNC PB-4 Pulser Amplitude 90,000 x5 attenuator IN Frequency 25Hz range t_r 100ns, tau_d 50us - polarity Delay MIN, tail pulse Encoding: HTML ELCode plain Suppress Email notification

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ELOG V3.1.4-unknown