Fri May 7 18:43:13 2021, Kanika, Michael, Shahab, Runs, cave M experiment needs more spills
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our pattern causes beam loss while scanning the biological probes in the Cave M bio experiment. They loose every other spill due to high request rate from ESR.
For the next 2 hours, the operators have changed the spill pattern that as long as they are scanning , we get only every 1 minute, otherwise we get our 15 seconds as usual.
after two hours this situation should be tuned back to the original spill pattern. |
Fri May 7 18:08:35 2021, Kanika, Sergey, Yuri, Wolfram, Michael, Shahab, Runs, going back to the original energy
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going back to the original energy 441 MeV/u
last filenames with the previous energy:
245: 2021.05.07.17.07.00.543
410: 2021.05.07.18.07.18.037 |
Fri May 7 17:35:22 2021, Kanika, Sergey, Yuri, Wolfram, Michael, Shahab, Runs, Energy change +6 MeV/u
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We will now go up in energy to 447 MeV (+6 MeV) from the original energy
last file name with previous energy:
245: 2021.05.07.16.33.47.178
410: 2021.07.05.17.34.04.780 |
Fri May 7 17:12:52 2021, Kanika, Sergey, Yuri, Wolfram, Michael, Shahab, Runs, trigger time back to 50%
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changed trigger time back to 50%
last file with 1% trigger:
245 MHZ 2021.05.07.16.07.03.493
410 MHz 2021.05.07.17.07.21.104
p.s. remember the 245 Analyzer has a 1 hour offset in time stamp because of daylight saving time in win10 setting |
Fri May 7 17:12:14 2021, Kanika, Sergey, Yuri, Wolfram, Michael, Shahab, Runs, Energy change -6 MeV/u
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changed the energy down to 435 MeV/u |
Fri May 7 17:02:51 2021, Kanika, Sergey, Yuri, Wolfram, Michael, Shahab, Runs, new sextupole setting 2
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There is new sextupole settings, but the scrapers remain like last night (Helmut setting last night.) |
Fri May 7 16:17:21 2021, Sergey, Yuri, Wolfram, Shahab, Runs, new sextupole setting
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new sextupole setting, isomer not visible yet. |
Fri May 7 16:09:50 2021, Yuri, Accelerator, Stop, change of sextuple settings
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Fri May 7 14:33:23 2021, Andrew Ragan Yuri , General, Beam is back
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Fri May 7 14:06:02 2021, Yuri, Accelerator, SIS kicker failure
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Fri May 7 12:37:35 2021, Ragan, Andrew, Yuri, Alex, General, Back with beam
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We are back with the beam in the ESR since 12:30
ALL SCRAPERS ARE IN THE ORIGINAL POSITIONS
E02DS3HG = - 35 mm
EEXDS2HA = - 25 mm
EEXDS1HA = - 25 mm
E01DS_H = - 40 mm
For E02DS3HG a reset in the control system needed to be done. |
Fri May 7 11:40:20 2021, Ragan, Andrew, Yuri, General, Scraper is fixed - optimisation stage
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Scraper is fixed, we start again. Scraper open to let everything through |
Fri May 7 10:46:40 2021, Yuri, Accelerator, GE02DS3HG
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The scraper is blocked at -10 mm and -unfortunately- blocks the beam in the ESR. Uli Popp is taking care. |
Fri May 7 10:05:06 2021, Yuri, Accelerator, E02DS3HG does not drive
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E02DS3HG stays at -35 mm and does not react |
Fri May 7 09:58:04 2021, Yuri, Accelerator, Setting up KO extraction for Caves
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SIS optimisation requires us to stop. Only sporadic shots. |
Fri May 7 09:56:43 2021, Yuri, Calibration, Identification Verification
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With closed scrapers there are only a few weak lines.
Open temporarily all scrapers in the ESR to write down the frequencies. |
Fri May 7 09:36:32 2021, Ragan, Andrew, Yuri, General, Beam stop at 0928, adjust scope
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It was requested from the SIS to stop the beam at 09:28
Yuri is adjusting the scope in order to avoid UFO (unidentified frequency object) |
Fri May 7 08:55:33 2021, Ragan, Andrew, Yuri, General, Trigger changed
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Trigger for both the spectrum analyzers is changed from 50% to 1% by Yuri.
For this, the ESR pattern was stopped at 08:50 and was started back at 08:53. |
Fri May 7 08:04:22 2021, Carlo Bruno, Desislava Kalaydjieva, Analysis, 7:00 - 14:00 analysis shift 15x
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(See
https://triumfoffice365-my.sharepoint.com/:w:/g/personal/dillmann_triumf_ca/Eb_LCp7yTx5Bgc8TO8khJmEBWeS-ycdPRnG02wQout-fgQ?rtime=3n3A3xMR2Ug
for remote shifter instructions. To be updated/corrected by the experts)
08:00 Analysed data from 6 am to 7 am (Note file names are one hour behind).
Using e143_analyzer.py -t 0.5 E143-245MHz-2021.05.07.05.*
See attachments 1,2,3
08:17 Analysed data from 7am to 8am (Note file names are still one hour behind)
As above.
See attachments 4,5,6
Analysed data from 8am to 9am (Note file names are still one hour behind)
As above.
See attachment 7
At 8:50 Yury changes trigger on scope from 50% to 1% (minimum value).
We should now have the beginning of the injection as well, and isomers should appear at 0.1 s
9:35 Lost beam from SIS
09:45 Analysed data from 9am to 9:30 am (Note file names are still one hour behind)
These are the first data with the new trigger settings
As above
See attachment 8
11:50 Beam is back, scraper being optimised.
12:30 Scraper optimisation complete.
13:00 Analysed data from 12:30 to 12:45 roughly.
Attach 9 - default code. -t 0.5
Attach 10 - new untested code with skip function. See Slack#analysis. -t 0.5 -s 0.2
Attach 11 - as 10, log scale on the y
13:48 Analysed data from to 12:30 to 13:35
-t 0.5 Attach 12
-t 1 Attach 13 (log y)
14:05 Lost beam in ESR
14:30 Analysed data from 13:00 to 14:00 before we lost beam.
-t 0.2 -s 0.1
Attach 13 & 14
14:35 Beam is back
15:00 Shift handed over to AG and CJC |
Fri May 7 07:52:12 2021, Ragan, Andrew, General, To change trigger position
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Xiangcheng suggested to change the trigger position in order to start the file with the injection. Nothing is changed at the moment. Maybe Shahab or Yuri can do it when they arrive. |
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