 Wed Jun 11 17:33:04 2025, Carsten, Jan, DAQ, DAQ2 - new computer , new directories (lxg0155 doesn't work reliably)
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LXG0155 (used in form er beamtimes) crashes and hangs and hangs eventually.
Lgx0155 is shut-down and is replaced by [B]lxg3113[/B].
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Wed Jun 11 16:44:39 2025, Carsten, Jan, Detectors, Detector voltages and thresholds for DAQ2 (Mesycontrol) 
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Voltages (2650v) for the small band 9423 is ok. Signals are nicely separated from background, thresholds can be easily set.
For the broadband 9422 the voltage is by far too low. Signals and BG are barely separated.
Increased voltage from 1500V to 1750V (according to datasheet Vmax = 2500V, 1500 V is the min voltage for gain 1e6...).
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Wed Jun 11 11:20:23 2025, Konstantin, Simon, DAQ, octal gate generator delays
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We checked the set delays of the OG 8000 octal gate generator and compared them with the values measured before the Bi-beamtime (see [URL=https://elog.gsi.de/esr/E0038/34]entry
34[/URL]).
All values match within an uncertainty of <1ns
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Fri Jun 6 14:27:10 2025, Rodolfo, Konstantin, Laser, MRC Beam Stabilization Presettings
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These are the settings for the Beam Stabilization from MRC.
Laser-beam energy ca. 18 mJ @ 275 nm |
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Tue May 20 16:14:30 2025, Rodolfo, Simon, Detectors, PMT arrangement at ESR
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This is the arrangement of the photomultipiers at the optical detection region at ESR for Thorium 2025
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 Wed Jun 4 16:18:57 2025, Rodolfo, Simon, Detectors, PMT dark count rates
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I adjusted the offsets of the amplifiers in the cave and measured the dark count rates :
[TABLE border="1"]
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Wed Jun 4 16:17:47 2025, Simon, Detectors, Nitrogen
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| The nitrogen supply for the PMTs is turned [B]ON[/B]. |
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Mon Jun 2 16:36:57 2025, Carsten, Detectors, Mesycontrol
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ssh -Y litv-exp@x86l-204
'mesycontrol' |