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  Nuclear hyperfine mixing in 229Th89+ 2024, Page 2 of 4  Not logged in ELOG logo
ID Datedown Author Category Subject Text Attachments
  58   Thu Jun 13 10:06:35 2024 Constantine, Peter, Lukas, Jonas, Dounia, CarstenAcceleratorSuspected Beam Troubles (is it really 229-Thorium?)From experience, the lifetime of the beam
in the storage ring should be on the order
of magnitude of hours, however, we observer
  
  57   Thu Jun 13 02:05:04 2024 CarstenAcceleratorShort Lifetime at 100 mALifetime still is short  2024_06_13_229Th_Short_Lifetime3.png 
  55   Wed Jun 12 22:48:55 2024 Carsten Beam HaloThe seamingly short live time reported in
[URL=https://elog.gsi.de/esr/E0052/53]entry
53[/URL] is due to a halo from a different
  
  54   Wed Jun 12 21:21:15 2024 YuriDetectorsNTCap startedFcenter - 244.6 MHz
BW - 10 MHz
  
  53   Wed Jun 12 18:48:43 2024 Afternoon shiftRunsFirst laser scans[TABLE border="1"]
Time | Part. Det. Int | ESR-intensity| cooler-HV
| LMD-DAQ1 Files | LMD-DAQ2 Files | scan
 2024_06_12_229Th_Lifetime_at_190MeV.png 
  51   Wed Jun 12 17:12:13 2024 Julian, Danyal, RodolfoLaserTiming für 229Th89+We did the timing Ion-Beam Laser-beam time
overlap. 
 Timing_229Th89_12-06-2024.JPG 
  49   Wed Jun 12 12:12:44 2024 Konstantin Mohr, Julien Spahn, Jonas Koedel, Bernhard MaassAcceleratorFirst Scraper ScanThorium is in the ESR, we have time to check
the beam position with the scrapers.
Beam Intensity in the ring 6E-5
 SpatialBeamOverlap.png 
  48   Wed Jun 12 09:43:57 2024 CarstenAcceleratorStopped NTCAP at 9:43Setup at ESR is carried on - stopped the long-time
NTCAP run from overnight,
  
  47   Wed Jun 12 09:17:43 2024 Carsten Tests of background with ionization pumps on (from monday)On monday the ionization pumps were switch
on to test the background, and if it is possible
to run with the pumps switched on.
 mit_IZ_trending_sued_alles(blind_durch_IZ).pngmit_IZ_trending_mitte_Nord_mit_Strahl.pngmit_IZ_trending_mitte_Nord_ohne_Strahl.pngmit_IZ_trending_mitte_Nord_alles.png 
  46   Wed Jun 12 01:51:51 2024 RuiJiu, DavidAnalysisIDThe preliminary identification has been thoroughly
checked using the RionID software. We have
confirmed that the identification is accurate.
 E142_TEline-ESR_229Th.lppsimulation_result.out229Th89_124h.png229Th89_125h.png 
  45   Tue Jun 11 23:46:06 2024 Carsten ))))AcceleratorID----
The frequency of the primary beam 238U82+
at the injection:
  
  44   Tue Jun 11 22:59:06 2024 CarstenAcceleratorIdentification / NTCAP startedESR is set-up in most parts.We are trying
to identify our 229Th89+. It is more cumbersome
then exspected because of the thick target
  
  43   Tue Jun 11 21:38:35 2024 Julian, Imke, RodolfoLaserWavemeter HeNe long time stabilityThe HeNe was running over night and the measured
laser frequency of the wavemeter was logged,
see picture.
 HeNe_LangeMessung_11-06-2024.JPG 
  42   Tue Jun 11 21:23:11 2024 Julian, ImkeGeneralHow to read out voltage1.) If not already opened, open the Medusa
Laser Control software, see picture:
2.) In the "view" submenu, choose "proteus
 medusa1.JPGmedusa3.pngmedusa4.png 
  41   Tue Jun 11 09:17:46 2024 Julien, Konstantin, LukasDAQImportant commands (DAQ1)To connect to the DAQ1 pc, open a terminal
and type:
 ssh atplaser@r4l-41
 SSH_Connection.pngMBS_Start.pngDAQ1_startup.pngRates.pngBildschirmfoto_2024-06-11_10-01-38.png 
  40   Mon Jun 10 11:59:12 2024 Ruijiu ChenAnalysisThe ion identification of spectrum recorded on 2022The simulated frequency is given in simulation_result.out.
The yield is calculated by LISE file. The
LISE file is attached here also.
 simulation_result.outE142_TEline-ESR_229Th.lppThe_ion_identification_of_spectrum_recorded_on_2022_v2.pdf 
  39   Mon Jun 10 09:17:38 2024 CarstenDAQUpdated Channel List   2024_06_10_ChannelList.pdfChannelList.odt 
  38   Mon Jun 10 08:57:35 2024 Carsten/KonstantinDAQFurther Tests from Sunday 2024-06-09 - new voltages and tresholds for PMTs - testdata in filesVoltages and thresholds increased for PMT
Middle and North (in order to account for
the ADC measurement in DAQ2
  
  37   Sun Jun 9 10:20:38 2024 Carsten/DanyalDetectorsRecap from yesterdays work with test beam (Detectors / beam /DAQ)In the ESR we had thw whole day (saturday)
a 400MeV/u bunched 238U92+ test beam (about
2 MHz). The RF signal is cabled as input
  
  36   Sun Jun 9 10:08:24 2024 Carsten/DanyalDetectorsParticle detectors - Recap of yesterdays work[B]South (behind cooler) - "SA_SZ" - DD2...[/B]
We have put the particle detecotr North to
the poistion behind the cooler (north) to
  
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