HOME ESR EXPERIMENTS LABS etc
E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028 E0038 E0075 E0203_E0018
  masses & isomeres 2025, Page 7 of 9  Not logged in ELOG logo
ID Date Author Category Subjectdown Text Attachments
  117   Thu Apr 3 09:53:02 2025 Ruijiu Chen,WolframAnalysisGood injection ratioCurrently, we only use 37% of the injections
in our data analysis. However, 63% of the
injections have a height below 100, and these
 photo_2025-04-03_09-53-26.jpg 
  69   Wed Apr 2 07:41:10 2025 Michael, AlexGeneralFrequency shift in SchottkyAfter the beam  was restored at 07:25, we
think that the frequency peak in the 244
MHz RSA2 has jumped again (closer to the
  
  115   Thu Apr 3 09:34:42 2025 IDGeneralFinished in the ESR as of 9:05We had stopped the RSAs at 8:00 (call for
restart)
Time stamp computer stopped and started at
  
  90   Wed Apr 2 18:31:52 2025 IDGeneralFYI for morning shifts ThuThe PLEIADES team (pocket detectors) has discussed
with Wolfram to get access to the ESR tomorrow
(Thu) morning ~8:00 to check their detectors
  
  114   Thu Apr 3 08:02:04 2025 Team PLEIADES (JG, ID, CJG, MC)DetectorsEntering ESR for PLEIADESWe are going to enter the ESR to check on
the PLEIADES pocket detectors and install
a nitrogen cooling.
  
  72   Wed Apr 2 09:28:59 2025 Michael, AlexGeneralEmpty injections in the ESRSince 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
  
  147   Fri Apr 4 09:45:02 2025 Ragan, Wolfram, SergeyGeneralElectron CoolerRegina, Jan, and Markus are in the ESR to
check the electron cooler.
  
  149   Fri Apr 4 11:00:35 2025 Ragan, Wolfram, Sergey, ZsoltGeneralElectron CoolerElectron cooler anode voltage needs a repair
which might take 20-30 mins. If it takes
longer, we'll proceed without a cooler curve
  
  150   Fri Apr 4 11:15:05 2025 Ragan, Wolfram, Sergey, ZsoltGeneralElectron CoolerNo additional HV. So, have to proceed without
the cooler. 
Spare Power supply did not work either, we
  
  148   Fri Apr 4 10:36:40 2025 Ragan, Wolfram, Sergey, ZsoltGeneralESR setting change from 188Hf72+ to 186Hf72+ESR setting is changed from 188Hf72+ to 186Hf72+.
SIS-18 beam energy for the primary beam transmission
check is 528 MeV/u.
  
  161   Fri Apr 4 17:10:35 2025 H. Weick, S. LitvinovAcceleratorESR scraper settingthe new scraper setting for good isochronicity
but still acceptable intensity losses is:
Done at ~ 15:00 today.
  
  65   Wed Apr 2 07:16:33 2025 Carlo, Chris, Alex, MichaelDAQESR not requesting7:05 ESR not requesting new pulses from the
SIS. 
Operators are trying to fix the problem.
  
  73   Wed Apr 2 10:02:40 2025 Sergey + YuriAcceleratorESR TimeoutAt around 9:40, ESR timeout changed from 10
s to 30 s
Triggering only on real injections.
  
  124   Thu Apr 3 15:57:16 2025 Shahab, Yue, Zac, EstherDAQData acquisitions runningAll data acquisitions (both RSAs and NTCAP)
are now running.
  
  12   Mon Mar 31 20:53:02 2025 Shahab, Carlo, Zac, Esther, MichaelDAQDAQ start20:28 started NTCAP
started queqiao file transfer for RSAs only
started analyzer looper for RSAs
  
  50   Tue Apr 1 20:37:04 2025 JeroenDAQChange of settings for shorter acq. windowAcquisition stopped at 20:36. 

First file from this setting: RSA01-2025.04.01.03.52.59.247.tiq
  
  51   Tue Apr 1 21:05:20 2025 Jeroen, Zac, Esther, Shahab, WolframDAQChange of settings for shorter acq. window> Acquisition stopped at 20:36. 

> First file from this setting: RSA01-2025.04.01.03.52.59.247.tiq
  
  57   Tue Apr 1 23:56:18 2025 Shahab, Carlo, Zac, Yue, MichaelDAQChange of RSA01 settings for new harmonic=212.23:55 stop the RSAs. 

410:
  
  64   Wed Apr 2 05:48:31 2025 Chris, Carlo, ZacGeneralBeam returnedBeam was returned to the ESR at 05:11.

HKR said there had been some problem with
  
  111   Thu Apr 3 06:33:08 2025 Zac, JohanGeneralBeam lost at 06:27, returned at 06:34Spike in beam intensity at 06:27 (5x usual
intensity) and then beam is lost. HKR says
it's a problem with the magnet's power supply.
  
ELOG V3.1.5-fc6679b