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  Laser Cooling Experiment 2021, Page 3 of 5  Not logged in ELOG logo
ID Date Author Category Subjectup Text Attachments
  74   Sun May 16 05:09:04 2021 TeamGeneralLaser cooling with 482pswe see laser cooling with 482ps pulse length   
  29   Wed May 12 23:45:23 2021 Ken UeberholzGeneralLaser does not reach the exit windowHigh rates on the detector at 50mm positions,
laser does not seem to reach the exit window.
  
  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
  
  69   Sat May 15 12:11:54 2021 BenediktGeneralLaser-bunch-timingOptimizing the laser bunch timing.
h = 7 (9.0389145 MHz)
Reprate is already set to same frequency.
  
  36   Thu May 13 02:42:58 2021 SebastianGeneralLasershutter ESR Entrance?!attached should be the name of the entrance
laser shutter. just in case somebody will
close it ;)
 IMG_20210513_020027_resized_20210513_024049198.jpg 
  67   Sat May 15 11:06:31 2021 BenediktGeneralNew Zoom link for the momenthttps://tu-darmstadt.zoom.us/j/4948400422?pwd=SEJaUzBuYXM0TTd6UWxoZTFlWEZxUT09

Meeting ID: 494 840 0422
  
  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).
  
  22   Wed May 12 18:59:15 2021 Ken UeberholzGeneralPower is backPower is back and most things are running
again
  
  79   Sun May 16 07:18:56 2021 Night Shift Sebastian/Max/NoahGeneralPreparation for automated laser scansWe shut the laser system down to prepare automated
laser scans
  
  17   Wed May 12 09:59:08 2021 BenediktGeneralRigol DSG821 signal generator settings   CF7701F6-86BE-406C-8FAD-F3161463181C.jpeg 
  45   Fri May 14 04:50:46 2021 Team #NightGeneralScraper Tests Ion / Laser Beamlaser is 4-6mm below the ion beam.
It could be that the interaction between
both beams came only from the interaction
  
  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
  
  38   Thu May 13 03:35:25 2021 LarsGeneralStatus: Current schedule ... so far1.) so far: 
h = 2, 4, 6, 7, 8, 10, 12, 14, 16, 18, 20,
30
  
  77   Sun May 16 06:13:46 2021 TeamGeneralSwitch to 166ps     
  75   Sun May 16 05:09:27 2021 TeamGeneralSwitch to 285pspulse length -> 285ps

minimum 62mW inside ESR (depending on laser
  
  68   Sat May 15 11:26:44 2021 BenediktGeneralTEM parametersWe changed the horizontal position of the
laser beam a bit, so that we maximized the
fluorescence signal on the XUV detector (coasting
  
  1   Mon May 10 07:58:13 2021 DanyalGeneralTelephone numbers and Zoom linkTelephone numbers:

ESR laser lab: +49 (0)6159 71 - 2882
  
  84   Mon May 17 21:43:56 2021 DanyalGeneralThe test beamtime was a success.Dear all,

The test beamtime is now over. 
  
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