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ID Datedown Author Category Subject Text Attachments
  25   Wed May 12 22:35:33 2021 DanyalGeneralfrev and fbSchottky frequency (189th harmonic) = 244.033662
MHz
  
  24   Wed May 12 22:28:55 2021 Ken UeberholzGeneralBunching succesfullBunching with 2 and 10 bunches succesfull   
  23   Wed May 12 19:48:24 2021 SebastianGeneralDSG821 NetworkTo implement the bunch Signal Generator (DSG821
inside ESR) you have to:
 IMG_20210512_195329_resized_20210512_075346417.jpg 
  22   Wed May 12 18:59:15 2021 Ken UeberholzGeneralPower is backPower is back and most things are running
again		   
  21   Wed May 12 15:36:04 2021 DanyalAcceleratorgeneral power failure in ESR! (everything is off)The power in the ESR is off. 
(also on the gas-target area on top of ESR)
Electrical engineers are trying to find and		   
  20   Wed May 12 13:11:58 2021 DanyalAcceleratorshort break between 13:30 and 15:30There will be a short break (2 hours) this
afternoon. Between 13:30 and 15:30. 
The so-calles "super lense" in the UNILAC		   
  19   Wed May 12 10:15:47 2021 Volker HannenDAQUnplugged TDC inputs for MCP front and backTo reduce the load on the VUPROM TDC, we unplugged
the TDC inputs for the front and back signals
of the MCP of the XUV detector. 		  
  18   Wed May 12 10:14:18 2021 LarsAcceleratorE-CoolerM.Steck et al. discussed about the E-Cooler
and found a possible issue. They asked for
enterance to the ESR. Since nobody else was		   
  17   Wed May 12 09:59:08 2021 BenediktGeneralRigol DSG821 signal generator settings   CF7701F6-86BE-406C-8FAD-F3161463181C.jpeg 
  16   Wed May 12 09:09:15 2021 SebastianDAQFluorescencefluorescence with detector in parking position
fixed laser wavelength
electron cooling ON,  		 1029967nm.png 
  Draft   Wed May 12 09:05:48 2021 Keysight SettingsDAQ     
  14   Wed May 12 09:04:48 2021 SebastianDAQKeysight AUtoCal   IMG_20210510_143940_resized_20210512_090353546.jpg 
  13   Wed May 12 08:42:49 2021 SebastianAnalysisLaser scans / coastig beam / no ecoolerAttached you'll see a first laser scan of
~100GHz in the UV.		  Screenshot_(156).png 
  12   Wed May 12 08:41:36 2021 SebastianAnalysisLaser stabilityDuring night shift the laser was very stable!
Only minor fluctuations occured in the UV		   
  11   Wed May 12 08:32:04 2021 SebastianAnalysisfluorescence & energetic overlapDuring the night shift we saw several rises
of the fluorescence (see another entry) and
also energetic overlap in coasting beam modus. 		 Screenshot_(154).png 
  10   Wed May 12 08:10:17 2021 LarsGeneralinstabilities in ion frequencylooks like the E-Cooler is responsible for
this. If one turns off the electron current,
the beam stays stable.  		  
  8   Wed May 12 02:34:29 2021 DanyalGeneralinstabilities in ion frequencyThe ion beam moves around, pretty arbitrary.
See picture. 
ESR crew believes that it is not due to fluctuations		  fluctuations.jpg 
  Draft   Wed May 12 02:16:25 2021 Danyal, LarsAcceleratorIon beam positionLaser Position with scrapers verified. 
1HA: impossible to scratch laser beam, still
there at -1.0 mm		   
  6   Tue May 11 20:14:43 2021 DanyalGeneralbad ESR vacuumI just heard that the ESR vacuum is quite
bad. 
There was a small vacuum problem a while		   
  5   Tue May 11 18:29:35 2021 DanyalGeneralfirst ions in the ESR   first_ions_are_injected.jpg 
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