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  nuclear two-photon decay 2024, Page 4 of 6  Not logged in ELOG logo
ID Date Author Category Subject
  54   Thu May 16 16:38:11 2024 Ide, HubbardRunsNo beam to ESR
because of problems in HHT
no beam from 16:36
  53   Thu May 16 16:10:03 2024 Ide, HubbardRunsLassie Screenshot
Lassie Screenshot taken at 16:09
Attachment 1: 2024-05-16_16-08-02-778_tcl1064.png.pdf
2024-05-16_16-08-02-778_tcl1064.png.pdf
  52   Thu May 16 15:24:30 2024 Ide, HubbardAcceleratornew Plunger setting
plunger motors were set

to +/-390 mm for 245 MHz resonator
and +/-55 mm for 410 MHz resonator
  51   Thu May 16 14:52:45 2024 ShahabDAQZr recording
Recording Zr starting from 14:45 again back to short cycle.
  50   Thu May 16 13:04:02 2024 Mayr, HannesRunsDAQ stopped, change setting to 98Zr
Beam tuning for 98Zr starting at 12:53, following data should be excluded from analysis. DAQ was stopped around 13:13.
  Draft   Thu May 16 12:48:58 2024 SergeyAcceleratorTune to 98Zr
- stop longer measurements
- change quadrupole and sextupole magnets
- rescale SIS-TE-ESR
  48   Thu May 16 11:20:10 2024 SergeyAcceleratorScreenshot of ESR pattern with 140 repetitions (each is 100 ms)
Injection Beam Process: 100ms
Bunching Beam Process: 16ms
Intermediate Beam Process: 100 ms, which is repeated 140 times
Intermediate Beam Process: 16 ms
Attachment 1: 2024-05-16_11-19-01-545.png
2024-05-16_11-19-01-545.png
  47   Thu May 16 11:13:05 2024 Mayr, HannesRunsRates
With the new timing, the rates now look like can be seen in the screenshot.
Attachment 1: 2024-05-16_11-10-57-933_tcl1064.png
2024-05-16_11-10-57-933_tcl1064.png
  46   Thu May 16 11:08:27 2024 Mayr, HannesRunsDAQ running again
"Real" measurement with good data starting from 11:07 until approximately 13:00.
Measurement time was changed to 10s with injections every 32s.
  45   Thu May 16 10:18:14 2024 Mayr, HannesRunsBeam back, DAQ off
Beam is back since 10:10, but DAQ is turned off to change the setting there.
Measurements starting at 10:18 are only test runs and should not be used for analysis.
  44   Thu May 16 09:41:56 2024 Mayr, HannesRunsNo beam
No beam from 09:39 to 10:10 due to a setting change. The change aims to increase the measurement time to 10s.
  43   Thu May 16 08:58:39 2024 Mayr, HannesRunsFluctuations in particle rate
Particle rates are fluctuating and increasing from a constant 5e8 to something around 1e9.
Attachment 1: 2024-05-16_08-58-00-964_tcl1064.png
2024-05-16_08-58-00-964_tcl1064.png
  42   Thu May 16 07:50:39 2024 Mayr, HannesRunsPeaks with very high particle rate
Peaks in the particle diagram going to unusual high 1.4e9 particles.
Attachment 1: 2024-05-16_07-49-53-757_tcl1064.png
2024-05-16_07-49-53-757_tcl1064.png
  41   Thu May 16 07:25:33 2024 Mayr, HannesRunsLassie Screenshot 07:23
Start of regular screenshots of the Lassie monitor every 1-2 hours.
Attachment 1: 2024-05-16_07-23-30-208_tcl1064.png
2024-05-16_07-23-30-208_tcl1064.png
  40   Thu May 16 04:37:27 2024 Boguslaw, CamilleRunsNo beam to ESR
We had no beam in ESR for about 3 minutes
Attachment 1: 2024-05-16_04-38-44-446_tcl1064.png
2024-05-16_04-38-44-446_tcl1064.png
  39   Thu May 16 00:37:41 2024 Boguslaw, CamilleRunsInjection pattern changed
The injection pattern changed on Lassie monitor (0:27 AM). (picture 1)

It when back to the previous rate at 1:48 AM. (picture 2)

The same pattern change appeared from 3:01 AM to 3:07 AM. (picture 3) and from 3:24 AM to 3:39 AM.
Attachment 1: 2024-05-16_00-34-07-585_tcl1064.png
2024-05-16_00-34-07-585_tcl1064.png
Attachment 2: 2024-05-16_01-53-34-896_tcl1064.png
2024-05-16_01-53-34-896_tcl1064.png
Attachment 3: 2024-05-16_03-10-00-258_tcl1064.png
2024-05-16_03-10-00-258_tcl1064.png
  38   Wed May 15 23:04:32 2024 XinliangAnalysisElectron cooler data
The cooler curve measured during May 14 afternoon.
Attachment 1: 20240515230302.png
20240515230302.png
Attachment 2: data_2024_-_sergey.xlsx
Attachment 3: iso.xlsx
  36   Wed May 15 20:40:51 2024 Jeroen, JohanRunsBeam returned to ESR
20:39:42 Runs restarted.
Attachment 1: 2024-05-15_20-40-22-391_tcl1064.png
2024-05-15_20-40-22-391_tcl1064.png
Attachment 2: 2024-05-15_22-01-28-310_tcl1064.png
2024-05-15_22-01-28-310_tcl1064.png
  35   Wed May 15 20:17:20 2024 JeroenAcceleratorFewer spills from SIS18 then lost beam
Apparently fewer spills coming from SIS18, see attached.

Beam was lost at 20:17:52. 
Attachment 1: 2024-05-15_20-16-49-990_tcl1064.png
2024-05-15_20-16-49-990_tcl1064.png
Attachment 2: 2024-05-15_20-18-47-422_tcl1064.png
2024-05-15_20-18-47-422_tcl1064.png
  34   Wed May 15 19:45:44 2024 Helmut WeickAcceleratorCooler curves after beam shift
After the Beam position tuning but before the scraper tuning two more cooler curves were taken.
The first with all scrapers open shows a similar shape to before with the same quadrupole setting.
Afterwards the ESR ebergy was shifted by -0.8 MeV/u to get the beam more on an outer orbit.
The curve then is shifted and has a bit less acceptance.
Attachment 1: curce_1.PNG
curce_1.PNG
Attachment 2: curce_2.PNG
curce_2.PNG
Attachment 3: isoc_curves_15052024.xlsx
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