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  Nuclear hyperfine mixing in 229Th89+ 2025, Page 3 of 4  Not logged in ELOG logo
ID Date Authordown Category Subject Text Attachments
  16   Tue Jun 17 16:33:16 2025 Carsten, SimonDAQGate Q-swtichThe gate generator of the Q-switch signal
for the Vuprom TDC was set to 10ms.
  
  74   Sun Jun 29 15:53:45 2025 Carsten, SimonAcceleratorNo scans possible15:45 Right now, we are waiting for stable
conditions again. There are problems with
both the ion source and the accumulation
  
  75   Sun Jun 29 18:04:11 2025 Carsten, SimonRunsLate shift 29.06.[TABLE border="1"]
Time | Part. Det. Int | SIS-intensity| accumulations
in ESR |  cooler-HV PTB K250 |  cooler-HV
  
  27   Wed Jun 18 20:24:01 2025 Carsten, Shahab, Ragandeep, Danyal et al. (the dayshift) and ESR crewAccelerator229Th89+ identificationWe believe to have identified the 237U92+
and the 229Th89+ peaks. 
 245_MHz_Schottky_229Th89.jpg 
  19   Wed Jun 18 00:56:28 2025 Carsten, Rodolfo, Anton, Alexis, Esther beam overlap with t-scrapersWhen testing the overlap between laser and
ion beam we observed the following positions:
  
  58   Tue Jun 24 18:49:18 2025 Carsten, Rima, Nils, SimonRunsSecond attempt (Late shift 24.06.)
[B] Scan parameters:[/B]
[TABLE border="1"]
  
  45   Sun Jun 22 18:47:23 2025 Carsten, Peter, Marek, SimonDAQPMT and particle detector settingsFinal voltages and thresholds for the PMTs
and particle detectors before the first scan:
  
  41   Sat Jun 21 18:00:49 2025 Carsten, Peter, Danyal, Kristian, Marek DetectorsPMT signalsCarsten and Kristian changed (18:00) the thresholds
of PMT north and PMT middle in the ESR cave.
 Panel4.gif 
  40   Sat Jun 21 17:00:10 2025 Carsten, Peter, Danyal, Kristian, MarekDetectorsPMT north exchangedWe noted that the dark countrate of PMT north
is about 20x higher than that of PMT middle.
 Panel4.pngPanel4.jpg 
  62   Thu Jun 26 19:01:46 2025 Carsten, Jan, SimonRunsLate shift 26.06.
[B] Scan parameters:[/B]
[TABLE border="1"]
  
  63   Thu Jun 26 21:27:34 2025 Carsten, Jan, SimonCalibrationTimingWe checked the timing (before the start of
the measurement cycle documented below).
Timing and measurement window are attached.
 Bildschirmfoto_timing_new_2025-06-26_19-00-04.png 
  7   Wed Jun 11 16:44:39 2025 Carsten, JanDetectorsDetector voltages and thresholds for DAQ2 (Mesycontrol)Voltages (2650v) for the small band 9423 is
ok. Signals are nicely separated from background,
thresholds can be easily set.
 Mesytec_CFD_Settings_2025-06-11_17-17-33.png 
  8   Wed Jun 11 17:33:04 2025 Carsten, JanDAQDAQ2 - new computer , new directories (lxg0155 doesn't work reliably)LXG0155 (used in form er beamtimes) crashes
and hangs and hangs eventually. 
  
  46   Sun Jun 22 21:36:48 2025 Carsten, Finn, Zac, EstherRunsFirst laser scans
[B] Scan parameters:[/B]
[TABLE border="1"]
  
  59   Tue Jun 24 22:24:36 2025 Carsten, Finn, Hiroshi, Esther, RodolfoRunsData taking (night shift 24.06.)
[B] Scan parameters:[/B]
[TABLE border="1"]
  
  76   Sun Jun 29 22:06:19 2025 Carsten, Alex, HendrikRunsNight shift 29.06.[TABLE border="1"]
Time | Part. Det. Int | SIS-intensity| accumulations
in ESR |  cooler-HV PTB K250 |  cooler-HV
  
  33   Sat Jun 21 01:40:31 2025 Carsten, Alex, Anton, Rodolfo, HiroshiAcceleratorbeam parametersThe revolution frequency for the measurement
condition is: 1.542728 MHz.
The electron cooler voltage is: 104411 V.
  
  2   Mon Jun 2 16:36:57 2025 CarstenDetectorsMesycontrolssh -Y litv-exp@x86l-204
'mesycontrol'
 MSCF16-F-V.pdf 
  9   Thu Jun 12 15:53:13 2025 CarstenDAQdata directory and backup disk (WDBook2 RAID)The data of DAQ1 are stored in the following
directory and with the following filenames
  
  10   Thu Jun 12 16:27:45 2025 CarstenDAQNTCAP directoryOn the NTCAP the directory is changed to 
Q:/E0052
  
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