 Wed Apr 2 08:04:47 2025, Michael, Alex, General, No beam
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The SIS kicker has failed again at 08:01.
Since this has happened already few times, the experts from the on-call duty service are now looking at the problem. |
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Wed Apr 2 08:47:27 2025, Michael, Alex, General, The beam is back
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The beam is back. But, the experts have found a problem with one of the modules of the SIS kicker magnet. And, currently they have disabled this module.
This fixed the problem. However, since the kicker system is not running with full power, it is not clear by how much this can affect the extracted beam
intensity for the ESR. Therefore, the ESR experts have been called and they will look at the injected beam intensity in the ring, in order to know if |
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Wed Apr 2 09:28:59 2025, Michael, Alex, General, Empty injections in the ESR
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Since the FRS started to take the beam again, the ESR gets 1/10 shots from SIS. But, the ESR seems to request about twice more frequently the beam from
SIS which means that every second shot in the ESR is empty (it contains the remaining beam from the previous injection). This also applies to the data
stored by RSAs because they also (seem to) trigger each time the ESR requests the beam. |
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Wed Apr 2 10:31:15 2025, Michael, Alex, Accelerator, The beam is back from 10:10
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Wed Apr 2 11:09:42 2025, Michael, Alex, Accelerator, The beam is back in the ESR
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We have the beam again the ESR since around 11:00.
The Schottky spectra look the same as before.
The ESR experts could not exactly identify the problem which caused this loss of the beam. |
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Wed Apr 2 12:13:57 2025, Michael, Alex, Accelerator, Some empty injections triggered while beam patterns are changed
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Operators seem to play with spill cycles, we get every 1:1 shot, then 1:10 again. During this, we noticed a few "empty injections" beeing triggered in the
RSAs. They light up green, but spectrum is flat. Then it returns to normal operation again. |
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Tue Apr 8 13:46:20 2025, Michael , General, Trying new Sextupole settings, all data after 13:44 affected
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Tue Apr 1 03:27:44 2025, Michael, General, Lassie Monitor 2025-04-01_03-22-05-395_tcl1064.png 
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Tue Apr 1 03:55:59 2025, Michael, General, Lassie Monitor 2025-04-01_03-55-21-183_tcl1064.png
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Tue Apr 1 04:27:10 2025, Michael, General, Lassie Monitor 2025-04-01_04-25-53-171_tcl1064.png
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Tue Apr 1 04:59:14 2025, Michael, General, Lassie Monitor 2025-04-01_04-58-31-351_tcl1064.png
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Tue Apr 1 05:29:45 2025, Michael, General, Lassie Monitor 2025-04-01_05-29-01-845_tcl1064.png
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Tue Apr 1 05:58:51 2025, Michael, General, Lassie Monitor 2025-04-01_05-58-09-122_tcl1064.png
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Tue Apr 1 06:31:46 2025, Michael, General, Lassie Monitor 2025-04-01_06-31-10-211_tcl1064.png
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Sun Apr 6 22:53:53 2025, Michael, Analysis, Added shift tracking and power threshold to Shahab's npz_addup.py
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I added automatic shift tracking and a check for a minimum wanted power in that bin to Shahab's npz_addup.py script.
It looks for the highest bin in the projected spectrum (so after time-cut) and tracks it position. Careful, it uses the position in the very first FILE
as reference. So, the ordering in the given file list affects this.
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Fri Apr 4 11:48:37 2025, MG, NH, ID, General, setting change to 186Hf + Lassie screenshots
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| 186Hf, 510MeV/u of 208Pb beam, ecooling not working |
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Fri Apr 4 14:01:20 2025, MG, ID,NH, General, Screen shot
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| Lassie screen shots 186Hf |
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Fri Apr 4 20:29:22 2025, KK BJ MC, General, Lassie screenshots
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Fri Apr 4 16:59:25 2025, KK BJ, DAQ, Lassie screen shots
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 Tue Apr 1 21:05:20 2025, Jeroen, Zac, Esther, Shahab, Wolfram, DAQ, Change of settings for shorter acq. window
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> Acquisition stopped at 20:36.
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> First file from this setting: RSA01-2025.04.01.03.52.59.247.tiq
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