ELOG CARME

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

CARME

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Entry time:

Fri Jun 13 19:41:32 2025

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New run started - Run 77 after refilling LN2 dewar

Same settings as Run 75 &amp; 76

The root histos have not been reset, i.e. they show combined statistics of run 75, 76 and 77.

20:45 - all checks OK

22:00 - all checks OK

00:10

Observed no data writing to disk. Checked merger no data merging. No ADC data items. Seems daq crashed again.

Appears aida09 had crashed causing system to stop. Tried fix suggested in earlier elog by Tom. No success. All FEEs show error and system became unresponsive.&nbsp;

Power cycling FEEs.&nbsp;

00:30

New run started Run 78. Same conditions as previous runs.&nbsp;

All thresholds remain unchanged -&gt;0x28 (400 keV)

Had to reset monitoring histograms as they were unresponsive too.&nbsp;

All system checks OK.&nbsp;

Data rate is ~300 kB/sec

ADC data items rate is similar to previous run (screenshot already attached)

Detector leakage currents look OK. Plots attached.&nbsp;

WS6 (elog and internet) appeared to freeze before. This could be similar to the issue osserved last weekend. All seems fine now and DAQ continues. Should keep an eye on it.

02:00

Checls OK

05:00

Checks OK

7:10 Checks OK. Target was fluctuating over night, dropped around midnight then back up but had no target for about 2-3 hours overnight. Fixed target thickness this morning and now have 5e12.

8:15 Checks Ok.

9:15 Checks Ok.

10:15 Checks ok. Target good at 5e12. Attatched screenshots of the peaky peaks so far (can&#39;t put numbers on excel as lost the ability to see it - see 9 10 and 11)

11:35 All checks ok. Screenshot of peaks attatchment 12 (decently peaky).

12:30 All checks ok. Peaks are beginning to show, especially proton and triton but on det 3, cant distinguish trition from noise peak so no value in spreadhseet for that. Target stable at 4.8e12.

13:30 All Checks ok.

14:30 All Checks ok.

15:40 All checks okay, lost beam at 15:25, let HKR know and they are looking into it, have put to no storage.

16:35 All checks okay, still no beam, taget is steady at 3e12

17:35 All checks okay, beam is back but being optimised

18:33 New run started- run 79, same settings as previous runs, did NOT reset histograms, beam now 2e8 (previously was 7e8)

18:33 All checks okay apart from temp of aida 3 which is a little high (see attachment 13), rates also attached (attachemnt 14), current histogram attached (15)

19:35 All checks okay, aida 3 temp now back within range, target density dropped but have managed to get it back up to 2e12

21:30 All checks okay, target has been very unstable, beam now at 3.8e8

22:30 All checks fine, target at 3e12 for past 45 minutes, beam at 4e8, current histogram attachment 16

23:40 All checks ok. Integral value for range to 4000 seems to be increasing for all histograms - meaning target is probably ok for now. Vacuum plot doesnt show any issues.

02:00 All checks ok. Integral values for proton peak have increased so assuming target is still holding as of now (only peak I can clearly isolate to get value from)&nbsp;- no indication that it is off via vacuum plot.&nbsp;

5:00 All Checks ok. Integral values increasing.&nbsp;

7:00 All checks ok, can&#39;t see target density as of 6:20

08:00 Run stopped as lost beam, histogram attachment 17

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