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  masses & isomeres 2025, Page 10 of 17  Not logged in ELOG logo
ID Date Author Categorydown Subject
  295   Mon Apr 7 23:49:49 2025 BW, CJGeneralLassie screenshots
  296   Tue Apr 8 00:49:54 2025 CJ, BWGeneralLassie screenshots
  297   Tue Apr 8 01:48:12 2025 CJ, BWGeneralLassie screenshots
  298   Tue Apr 8 02:47:00 2025 CJ, BWGeneralLassie screenshots
  299   Tue Apr 8 03:48:49 2025 CJ, BWGeneralLassie screenshots
  300   Tue Apr 8 04:50:06 2025 CJ, BWGeneralLassie screenshots
  301   Tue Apr 8 05:53:09 2025 CJ, BWGeneralLassie screenshots
  302   Tue Apr 8 07:00:46 2025 Cagla, Michael GeneralLassie Screenshots
  303   Tue Apr 8 07:58:00 2025 Cagla, MichaelGeneralLassie Screenshots
The beam is gone in ESR via TE (FAST) and also in SIS18_RING (FAST) starting from 07.51 am until 07.59 am.
  304   Tue Apr 8 08:59:24 2025 Cagla, MichaelGeneralLassie Screenshots
  305   Tue Apr 8 09:28:49 2025 Team PLEIADESGeneralControlled access to ESR to connect cables for DAQ
We will need to enter the ESR to connect the cables again for our DAQ and then drive in the outside detector for 20min to get some data.
9:35 entered
9:41 exit
9:44 ESR available again
  307   Tue Apr 8 10:04:02 2025 Cagla, MichaelGeneralLassie Screenshots
  309   Tue Apr 8 11:18:06 2025 Cagla, MichaelGeneralLassie Screenshots
  313   Tue Apr 8 12:10:41 2025 Cagla, MichaelGeneralLassie Screenshots
  314   Tue Apr 8 13:01:29 2025 Cagla, MichaelGeneralLassie Screenshots
  315   Tue Apr 8 13:46:20 2025 Michael GeneralTrying new Sextupole settings, all data after 13:44 affected
  316   Tue Apr 8 13:47:33 2025 Cagla, MichaelGeneralLassie Screenshots
New sextupole settings at 13.45.
The beam will be stopped at 14.10 until around 7 pm.
  317   Tue Apr 8 14:16:16 2025 Michael, CaglaGeneralBeam stopped for Accelerator Tour etc.
The beam was stopped for the evaluation accelerator tour. RSAs and NTCAP stopped now.
  321   Tue Apr 8 23:08:15 2025 Sergey Litvinov, Xinliang YanGeneralTuning of the ion optics
From roughly 10:45 pm to 11:05 pm,  Sergey tuned the 
ion optics of the ESR to see if the mass resolution at 
413.55735 MHz improves or not. Please note that the 
frequencies of ions during the tuning process are not 
stable.

Q-magnets and S-magnets have been adjusted, see 
accelerator E-logs ID-844 titled ‘ ESR seting for 
204Pt77+’ created by Sergey.
  322   Wed Apr 9 00:08:30 2025 Sergey, Yuri and XinliangGeneralMove of the scraper positions at ESR
From roughly … to 0:05AM, Sergey moved GEEXDS1HA (not 
changed 
in the end) and GE01DS3HG (changed from -85 to -80 mm) to reduce 
the acceptance of the ESR to improve the mass resolution.

After the change, there are less small traces appearing in the 
413.55735 MHz +/-5 kHz range. 

The final positions of the two scrapers are 
GEEXDS1HA :-10 mm; GE01DS3HG:-80 mm.
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