 Sun May 9 08:00:03 2021, Liliana, Andrew, General, Status 
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So far, we keep the setting as it is and wait for experts to come in.
Few spills are missing from time to time. One of the peaks stays usually in the spectrum when this happens.
Analysis of the last hours is being performed by the remote shift, in case it is useful. Some plots in telegram. |
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Sun May 9 06:34:37 2021, Iris, Chris G., Jacobus, Michele, Analysis, Runs 2-3am Not_Mn52
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Summed up runs on the 245 MHz detector between 2-3am (computer time).
One has -s 0.1 -t 8.0
the other -s 5.1 -t 0.5
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 Sun May 9 07:16:47 2021, Iris, Chris G., Jacobus, Michele, Analysis, Runs 3-4am Not_Mn52
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Summed up runs on the 245 MHz detector between 3-4am (computer time).
-s 0.1 -t 8.0 |
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Sun May 9 06:53:20 2021, Iris, Chris G., Jacobus, Michele, General, Summary night shift
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The tune last night was unfortunately not to 52Mn. The two "isomers" that were identified are instead 45Sc and 75Br. But separation looks okay. ESR morning
shift should try to tune to 52Mn to identify the 21-min isomer at 378 keV.
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Sun May 9 02:45:50 2021, Jacobus, Michele, Shahab, Runs, Example of possible 52.Mn isomer
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| this is how it should look like |
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Sun May 9 02:51:44 2021, Iris, Runs, Example of possible 52.Mn isomer
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| So the "isomers" pop up at ~-600 Hz and +580 Hz... is the -600 Hz on the left the 378 keV isomer (21 min) and the +580 Hz on the right the g.s.? |
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Sun May 9 03:24:12 2021, Iris (Shahab, Jacobus, Chris G., Michele), Runs, Example of possible 52.Mn isomer
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Short update from Yuri: these are not our isomers. These are 45Sc (left, 12 keV isomer not resolvable) and 75Br (center), and the right-most peak of the
triplet is a satellite (has a different line shape, much narrower).
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Sun May 9 06:15:09 2021, Iris, Chris G., Jacobus, Michele, Runs, Triplet: zoom in
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Zoom into the triplet: the satellite peaks on the right are clearly visible.
This is just one file but one *might* see some substructure. Yuri mentioned a 318 ms isomer in 45Sc at 12 keV but that cannot be resolved.
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Sun May 9 05:56:29 2021, Iris, Chris G., Jacobus, Michele, Analysis, Not_52Mn spectra added up
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Attached is a summed spectra of all files taken between 1:17am and 1:59am (on the 245 MHz detector).
python3 e143_analyzer.py -s 5.1 -t 0.5 /home/dillmann/E143/e143-scripts/sparc-daq-02.gsi.de/E143-245MHz/E143-245MHz-2021.05.09.01.* -o Not_52Mn_245MHz_May09_1-2am
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Sun May 9 05:38:29 2021, Iris, Chris G., Analysis, offset btw png and tiq files from server?
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This might have been answered before but I looked at one png file and one tiq file from the same run that was stored on the server. There seems to be an
offset of 2.2 s. The png file from the server (right) shows the injection at ~5s, whereas when I look at the tiq file in the GUI (left), the injection
is at ~2.8 s???? Is the looper introducing this offset? |
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Sun May 9 05:54:11 2021, Ragan, Analysis, offset btw png and tiq files from server?
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| This is due to the 50% trigger setting in the spectrum analyzers )) |
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Sun May 9 02:19:04 2021, Jacobus, Shahab, Runs, First 52Mn run
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| Run E143-245 MHz-2021.05.09.01.17.42.265.tiq is the first run of the experiment on 52Mn. |
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Sun May 9 05:11:55 2021, Iris (Chris G., Jacobus, Michele), Runs, First 52Mn run (no 52Mn unfortunately)
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> Run E143-245 MHz-2021.05.09.01.17.42.265.tiq is the first run of the experiment on 52Mn.
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Sun May 9 04:15:50 2021, Michele, Jacobus, Shahab, Runs, Beam issues for short duration
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ESR warning (colour red in the panel)
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Sun May 9 02:32:58 2021, Jacobus, Shahab, Runs, possible 52-Mn isomer
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| the intensity of the line on the left side is so high, it is difficult to see the isomers in the middle as can be seen in the auto generated picture |
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Sun May 9 01:49:25 2021, Helmut, Sergey, Yuri, Accelerator, change to 52Mn
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It was done in steps:
isochronous 52Mn should come at Brho = 6.28239 Tm (gamma_t = 1.3955).
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Sun May 9 01:19:47 2021, Helmut, Sergey, Accelerator, scraper optmisation for 72Ge
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To improve the isochronicity still in the 72Ge setting sextupoles and scrapers wer varies successfully.
1. E02DS_H -130 / 130mm - wide rect. peak
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Sat May 8 22:06:36 2021, Michael, Ruijiu, Helmut, Yuri, Wolfram, Sergey, Shahab, Runs, stopped data taking with the high resolution
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last file names with this setting:
245: 2021.05.08.20.42.03.743.tiq
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Sat May 8 21:42:51 2021, All, Accelerator, Set up for 52Mn
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Details will follow
E(Mn) = 368.41 MeV/u |
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Sat May 8 21:42:26 2021, All, Runs, Stop72Ge
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Sat May 8 21:10:24 2021, Michael, Ruijiu, Helmut, Yuri, Wolfram, Sergey, Shahab, Runs, started data taking with high resolution
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after optimizing the scrapers we have reached the highest possible resolution in the isochronous mode.
starting data taking with this new settings.
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Sat May 8 21:08:13 2021, Helmut, Sergey, Shahab, Wolfram, Yuri, Accelerator, optimisation of sextuples
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| The optimisation of sextuples is finished. Record a few files. |
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Sat May 8 19:51:46 2021, Ragan, Rui-Jiu, DAQ, Change reference level to -50dBm
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Start a new run. The data of new run is in :
SC_2021-05-08_19-51-35
IQ_2021-05-08_19-51-35 |
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Sat May 8 18:35:25 2021, Rui-Jiu Chen, DAQ, Change reference level to -10dBm
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The beam in ESR is 78Kr36+@476 MeV/u.
Start a new run:
SC_2021-05-08_18-25-52
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Sat May 8 17:29:54 2021, Yuri, Sergey, Wolfram, Michael, Shahab, Runs, recording Kr decay measurement on NTCAP
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Uc = 250mA
decay Kr 78, 476 MeV/u
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Sat May 8 16:08:58 2021, Helmut Weick, Accelerator, beam position of Kr before ESR
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Checked beam positions in beamline before ESR,
they all look the same as before, with direct Kr beam.
Compare with old elog entry #.
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