ELOG DESPEC

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

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Entry time:	Sat Mar 29 11:38:06 2025
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00:13 beam back, but some spills 'missing' DESPEC keeping beam as is, but may stop later if it worsens 00:15 DAQ continues OK - file R20_622 ASIC settings 2019Dec19-16.19.51 DSSSD#1 slow comparator 0xa DSSSD#2 slow comparator 0xa DSSSD#3 slow comparator 0xd BNC PB-5 Pulser Amplitude1.0V Attenuation x1 Frequency 2Hz tau_d 1ms - polarity Delay 250ns, tail pulse 00:20 System wide checks all OK except ADC Calibration FEE64 module aida07 failed FEE64 module aida10 failed Calibration test result: Passed 10, Failed 2 If any modules fail calibration , check the clock status and open the FADC Align and Control browser page to rerun calibration for that module Check FPGA Timestamp Errors Base Current Difference aida12 fault 0x0 : 0x1 : 1 FPGA Timestamp error counter test result: Passed 11, Failed 1 If any of these counts are reported as in error The ASIC readout system has detected a timeslip. That is the timestamp read from the time FIFO is not younger than the last 00:24 still no bad timestamp errors in NewMerger since 16:30 UTC 00:30 FEE64 Temperatures OK - attachment 1 Good event statistics OK - attachment 2 Detector bias & leakage currents OK - attachment 3 Merger OK - 4.2M data items/s TapeServer OK - 45 Mb/s 01:30 rate spectra - attachment 4 HEC spectra - attachment 5 & 6 note aida04 spectrum still not showing 02:07 beam off - file R20_760 02:11 beam back - file R20_764 02:44 System wide checks all OK except ADC Calibration FEE64 module aida07 failed FEE64 module aida10 failed Calibration test result: Passed 10, Failed 2 Check FPGA Timestamp Errors Base Current Difference aida12 fault 0x0 : 0x1 : 1 FPGA Timestamp error counter test result: Passed 11, Failed 1 still no bad timestamp errors in NewMerger since 16:30 UTC FEE64 Temperatures OK - attachment 7 Good event statistics OK - attachment 8 Detector bias & leakage currents OK - attachment 9 Merger OK - 4.2M data items/s TapeServer OK - 44 Mb/s 04:16 bad timestamp errors in NewMerger terminal, first since 16:30 UTC - attachment 10 System wide checks all OK except ADC Calibration FEE64 module aida07 failed FEE64 module aida10 failed Calibration test result: Passed 10, Failed 2 Check FPGA Timestamp Errors Base Current Difference aida12 fault 0x0 : 0x1 : 1 FPGA Timestamp error counter test result: Passed 11, Failed 1 FEE64 Temperatures OK - attachment 11 Good event statistics OK - attachment 12 Detector bias & leakage currents OK - attachment 13 05:03 Merger OK - 4.5M data items/s TapeServer OK - 43 Mb/s no bad timestamp errors for ~40 mins, data forwarding to MBS ok at usual rate 06:11 rates spectra - attachment 14 06:14 System wide checks ADC Calibration FEE64 module aida07 failed FEE64 module aida10 failed Calibration test result: Passed 10, Failed 2 Check WR decoder status Base Current Difference aida05 fault 0x1591 : 0x1593 : 2 aida06 fault 0xe23c : 0xe23e : 2 aida07 fault 0x743 : 0x745 : 2 aida08 fault 0xf84e : 0xf850 : 2 aida09 fault 0x5449 : 0x544a : 1 White Rabbit error counter test result: Passed 7, Failed 5 Understand the status reports as follows:- Status bit 3 : White Rabbit decoder detected an error in the received data Status bit 2 : Firmware registered WR error, no reload of Timestamp Status bit 0 : White Rabbit decoder reports uncertain of Timestamp information from WR Check FPGA Timestamp Errors Base Current Difference aida12 fault 0x0 : 0x1 : 1 FPGA Timestamp error counter test result: Passed 11, Failed 1 still no further bad timestamp errors in NewMerger terminal collected all WR and FPGA errors from baseline, system wide checks ok FEE64 Temperatures OK - attachment 15 Good event statistics OK - attachment 16 Detector bias & leakage currents OK - attachment 17 06:24 AIDA writing to file R20_1080 Merger OK - 4.5M data items/s TapeServer OK - 46 Mb/s 06:26 another burst of bad timestamp errors - attachment 18 performed system wide checks again - all ok aside from aida07/aida10 calibration 07:32 HEC spectra - attachments 19/20 07:35 no beam Encoding: HTML ELCode plain Suppress Email notification

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ELOG V3.1.4-unknown