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ID Date Authordown Category Subject Text Attachments
  85   Tue May 31 07:29:11 2022 KenDetectorsXUV-DetektorRate was very low: ~ 100Hz
Adjusted Walk level and Threshold, new rate:
5kHz 		  
  66   Sat May 15 09:57:24 2021 DayshiftRunsCurrently on schedule Enhance fluorescence rate and perform 
laser bunch timing 
  
  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		   
  1   Mon May 10 07:58:13 2021 DanyalGeneralTelephone numbers and Zoom linkTelephone numbers:

ESR laser lab: +49 (0)6159 71 - 2882 		  
  2   Tue May 11 15:49:30 2021 DanyalGeneralsetting up ESRThe operators are still busy extracting the
beam from the SIS18 towards the ESR and injecting
it into the ESR. 		   
  5   Tue May 11 18:29:35 2021 DanyalGeneralfirst ions in the ESR   first_ions_are_injected.jpg 
  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		   
  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 
  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		   
  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		   
  25   Wed May 12 22:35:33 2021 DanyalGeneralfrev and fbSchottky frequency (189th harmonic) = 244.033662
MHz
  
  30   Thu May 13 00:58:53 2021 DanyalDAQunbunched ion beam   not_bunched_-_signal.jpgnot_bunched_-_Schottky.jpg 
  31   Thu May 13 01:01:27 2021 DanyalDAQbunched ion beam   bunched_-_signal.jpgbunched_-_Schottky.jpgzoom_bunched_-_Schottky.jpg 
  32   Thu May 13 01:05:45 2021 DanyalDAQmore stability by bunchingBecause the C3+ part of the ion beam is properly
bunched, it is no longer so sensitive to
the drifts caused by the e-cooler.  		  
  84   Mon May 17 21:43:56 2021 DanyalGeneralThe test beamtime was a success.Dear all,

The test beamtime is now over.  		  
  17   Wed May 12 09:59:08 2021 BenediktGeneralRigol DSG821 signal generator settings   CF7701F6-86BE-406C-8FAD-F3161463181C.jpeg 
  40   Thu May 13 20:18:10 2021 BenediktGeneralNew f_revThe ions were changed to a different speed
today at 2 PM. The new revolution frequency
is now 1.291278 MHz.		   
  41   Thu May 13 21:00:48 2021 BenediktGeneralNew reprate of the UV laserThe lasersystem now operates at a reparte
of 9.038946 MHz. This is 7 times f_rev (see
previous post). 		  
  56   Fri May 14 11:01:33 2021 BenediktCalibrationLaser Beam adjustedThe laser beam was adjusted in his position
to overlap better with the ions.
  
  57   Fri May 14 16:37:01 2021 BenediktGeneralStatus updateRight now, we have to adjust the ion beam
a bit to overlap better with the laser beam.
We keep the laser wavelength at resonance		   
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