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E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028 E0038 E0075 E0203_E0018
  masses & isomeres 2025, Page 6 of 17  Not logged in ELOG logo
ID Date Author Categorydown Subject
  176   Sat Apr 5 02:01:44 2025 Yue, QianGeneralLassie Screenshot
  177   Sat Apr 5 03:02:43 2025 Yue, QianGeneralLassie Screenshot
  178   Sat Apr 5 04:01:56 2025 Yue, QianGeneralLassie Screenshot
  179   Sat Apr 5 05:01:36 2025 Yue, QianGeneralLassie Screenshot
  180   Sat Apr 5 06:01:50 2025 Yue, QianGeneralLassie Screenshot
  181   Sat Apr 5 06:55:59 2025 Yue, Qian, Mayr, HannesGeneralLassie Screenshot
  182   Sat Apr 5 08:01:14 2025 Hannes, CaglaGeneralLassie screenshot and drop in particles
After a ~ two minute outage of the "ESR via TE (FAST)" beam at 07:48 the particles dropped by half. See screenshot 2025-04-05_08-01-34-267.png
  183   Sat Apr 5 08:15:09 2025 Hannes, CaglaGeneralParticles are back to previous intensity
  184   Sat Apr 5 09:03:36 2025 Hannes, CaglaGeneralLassie screenshots
  186   Sat Apr 5 10:16:11 2025 Hannes, CaglaGeneralLassie screenshots
  187   Sat Apr 5 10:51:00 2025 Hannes, CaglaGeneralBeam gone
Beam is gone since 10:45.
According to the main control room there is a problem in SIS18. They are looking into the problem.
  188   Sat Apr 5 11:00:57 2025 Hannes, CaglaGeneralLassie screenshots
  189   Sat Apr 5 11:04:22 2025 Hannes, CaglaGeneralBeam back
The beam is back as before since 11:02.
  190   Sat Apr 5 11:37:44 2025 Ragan, Rui-Jiu, Zsolt, Wolfram, YuriGeneralGeneral
We have not seen 184Hf and 186Hf so far. 
  191   Sat Apr 5 12:03:23 2025 Hannes, CaglaGeneralLassie screenshots
  193   Sat Apr 5 12:59:08 2025 Hannes, CaglaGeneralLassie screenshots
  194   Sat Apr 5 14:02:54 2025 Hannes, CaglaGeneralLassie screenshots
  197   Sat Apr 5 15:01:03 2025 Hannes, CaglaGeneralLassie screenshots
  198   Sat Apr 5 15:15:33 2025 Xinliang Yan, Wenwen GeGeneralLassie screen shots
  199   Sat Apr 5 15:20:19 2025 YuriGeneralChange to 188Hf
Before changing we check how much we cut with the ESR scrapers
two lines
208Pb80+ with slits intensity 15 arb u
204Hg78+ ... 0.055

Now, slits fully open


208Pb80+ with slits intensity 127 arb u
204Hg78+ ... 0.25

Increase compared to 188Hf measurement:
208Pb80+  increase of factor 8.5
204Hg78+  increase of factor 14
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