ELOG CARME

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

CARME

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Wed Apr 23 11:08:34 2025

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12.08 DSSSD bias & leakage current - attachments 1-2
       CAEN logger program crashed sometime this am - now restarted
       DSSSD #2 and DSSSD #4 OK - DSSSD #4 stable since c. 03:00 20.4.25
       DSSSD #1 and DSSSD #3 remain high
       All DSSSDS show effect of ambient temperature transient in CRYRING hall

CRYRING vacuum and temperature - attachments 3-4

14:40

FEEs started up. Background run started. Pulser running in the at 1HZ, amplitude is 9000.
Note aida03 and aida04 set to MEC due to high rate >100k. This resulted in data rates ~3MB/s. Slow comparator thresholds set to 0x64 (1 MeV)
System checks OK. AIDA16 and ADC calibration check clock status fails. 
Run 10 started. 
Attachments 5,6,7,8,9 from start of run. Waveforms, ADC data items statistics, New merger, Tape server respectively. 
Will continue to monitor during the day until tonight when I will turn off the FEEs again.

Run stopped. 
Noticed spike in leakage current for all detectors. 
This coincides with change in vacuum around the ring. Some operation is ongoing, all FEEs off, detectors off. 
See attachment 10 for leakage currents.

Vacuum gauge in section 9 is back on to allow for ring interlocks.

29/04/25

Turned the FEEs on to check if aida08 is still connected to the coolant loop. Temperatures in normal range after startup. FEEs turned back off for now.

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