 Thu Apr 3 23:42:05 2025, Zhang, Zhou, General, Screenshots 
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Fri Apr 4 00:46:18 2025, Zhang, Zhou, General, Screenshots
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Fri Apr 4 01:41:48 2025, Zhang, Zhou, General, Screenshots
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Thu Apr 3 23:23:20 2025, Zhang Min, Zhou Xu, Accelerator, Beam injection change
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The SIS operator says that FRS doesn't need beam now, ESR will receive the full SIS beam extraction every 3 secs overnight. All the secondary beams are injected into ESR from now on. |
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Tue Apr 1 02:01:06 2025, Zac, Shahab, Ruijiu, Yuri, Sergey, Wolfram, Carlo, Michael, Accelerator, Settings lost
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Settings lost after the beam was lost. Trying to recover particle identification now that beam has returned. |
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Wed Apr 2 23:15:52 2025, Zac, Johan, Accelerator, No injections from SIS
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Night shift starts with no injections from SIS! We still have triggers; we called HKR and are waiting for response. |
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Wed Apr 2 23:27:35 2025, Zac, Johan, Accelerator, Beam is back 23:25
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Thu Apr 3 00:49:00 2025, Zac, Johan, General, Beam lost at 00:46
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Thu Apr 3 01:14:16 2025, Zac, Johan, General, Beam is back at 01:12
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Thu Apr 3 01:19:44 2025, Zac, Johan, General, Beam fluctuations
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Beam gone again between 01:14 and 01:18, then again at 01:19. HKR says there are problems with the source. |
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Thu Apr 3 01:29:49 2025, Zac, Johan, General, Beam is back at 01:27
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Thu Apr 3 01:56:57 2025, Zac, Johan, General, Problems with one of the quadrupoles
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Since around 01:45 we get spills but see nothing on analysers. HKR says there is a problem with one of the quadrupoles; they are working on it. |
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Thu Apr 3 02:01:29 2025, Zac, Johan, General, Quadrupole issues
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HKR has called someone to fix the quadrupole, they think it will take about an hour. |
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Thu Apr 3 02:52:27 2025, Zac, Johan, General, Beam is back at 02:52
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Thu Apr 3 05:11:37 2025, Zac, Johan, General, Beam lost at 05:07, returned at 05:14
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Thu Apr 3 06:33:08 2025, Zac, Johan, General, Beam lost at 06:27, returned at 06:34
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Spike in beam intensity at 06:27 (5x usual intensity) and then beam is lost. HKR says it's a problem with the magnet's power supply. Once the beam returned, the peaks are shifted to the left but are slowly shifting back into position. |
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Wed Apr 2 04:59:50 2025, Zac, Chris, Carlo, General, Receiving injections but not seeing anything on RSAs
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Starting at around 04:09 we don't see anything on RSAs. RSAs are still triggering and writing files, but only see noise. Lassie indicates beam current in the ESR
We called HKR, they said they will investigate, awaiting response.
last file that contains data: RSA01-2025.04.02.04.09.27.044.tiq_spectrogram.npz
file from which only noise is contained: RSA01-2025.04.02.04.09.31.905.tiq_spectrogram.npz
At 04:09: drop of beam in the SIS as shown in screenshots.
For a minute there were still good data. Files from:
RSA01-2025.04.02.04.13.44.629.tiq_spectrogram.npz
to:
RSA01-2025.04.02.04.14.47.805.tiq_spectrogram.npz
05:30 update from HKR: There is a problem with the ESR main power supply. We have to wait. |
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Wed Apr 2 00:59:43 2025, Zac, Carlo, Chris, Accelerator, Lost the beam
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Beam was lost from 00:44 until 00:59 |
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Fri Apr 4 17:59:33 2025, Zac , Sid, DAQ, 17:58
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DAQ stopped with last file in RSA1-2025.04.04.17.58.49.340.tiq
Now the plan is to change one of the analyzers to narrow band recording for longer from the 245 Schotkky. |
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Tue Apr 1 15:32:59 2025, Zac, DAQ, NTCAP Restarted
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NTCAP Has been restarted (we restart every day around 15:00 so data goes in a new folder) |
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