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Date |
Author |
Category |
Subject |
Text |
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47
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Sun Jun 22 22:29:04 2025 |
Carsten | Accelerator | Backup copy of present accelerator settings - don't use if you don't know what you are doing | # Version: 1.3
# Comment: ParamModi Export at 2025-06-22T22:28:05.633712878+02:00[Europe/Berlin]
# Context: ESR_25_12_THORIUM_20June_v3.C1
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46
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Sun Jun 22 21:36:48 2025 |
Carsten, Finn, Zac, Esther | Runs | First laser scans |
[B] Scan parameters:[/B]
[TABLE border="1"]
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45
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Sun Jun 22 18:47:23 2025 |
Carsten, Peter, Marek, Simon | DAQ | PMT and particle detector settings | Final voltages and thresholds for the PMTs
and particle detectors before the first scan:
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Draft
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Sun Jun 22 11:31:59 2025 |
Arya, Carsten, Julien, Konstantin | General | Summary morning shift | 1. UNILAC running again, so we resumed the
beam tuning wherre we stopped yesterday at
14:00
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43
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Sat Jun 21 22:33:04 2025 |
Peter , Danyal | Detectors | PMTs are switched off | We have switched off all 3 PMTs ! |
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42
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Sat Jun 21 21:55:18 2025 |
Peter, Danyal, Marek | Detectors | PMT rates | We have made two foam rings (outer diameter
ca. 70 mm with a thickness of 10 mm each
and placed them successively underneath PMT |
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41
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Sat Jun 21 18:00:49 2025 |
Carsten, Peter, Danyal, Kristian, Marek | Detectors | PMT signals | Carsten and Kristian changed (18:00) the thresholds
of PMT north and PMT middle in the ESR cave.
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40
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Sat Jun 21 17:00:10 2025 |
Carsten, Peter, Danyal, Kristian, Marek | Detectors | PMT north exchanged | We noted that the dark countrate of PMT north
is about 20x higher than that of PMT middle.
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39
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Sat Jun 21 11:42:50 2025 |
Arya, Julien, Wilfried | General | Test laser scan | Test scan to see whether laser spot is moving
while scanning
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38
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Sat Jun 21 08:48:16 2025 |
Arya, Julien, Wilfried | Accelerator | Low 229Th particle numbers and 229Th lifetime in ring | With reference to entry 37 Laser timing:
- at last 30 injections accumulation: 10k |
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37
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Sat Jun 21 07:28:35 2025 |
Arya, Julien, Wilfried | Laser | Laser Timing | We roughly adjusted the timing based on attachment
1, for ions to be in center of electron cooler
(east arc), corrected for PMTs being 2.5m |
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36
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Sat Jun 21 03:13:02 2025 |
Alex, Anton, Rodolfo, Hiroshi | Detectors | Part Det South | Bunch signal on Particle Detector South. On
the
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35
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Sat Jun 21 03:06:19 2025 |
Rodolfo, Alex, Hiroshi, Anton | Laser | beam overlap with t-scrapers | [TABLE border="1"]
motor|ion beam position (mm) from outside|ion
beam position (mm) from inside
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34
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Sat Jun 21 02:32:24 2025 |
Alex, Anton, Rodolfo, Hiroshi, Carsten | Laser | Laser scanning setting | This is the initial scanning range
[LIST]
[*] 3 Loops
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33
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Sat Jun 21 01:40:31 2025 |
Carsten, Alex, Anton, Rodolfo, Hiroshi | Accelerator | beam parameters | The revolution frequency for the measurement
condition is: 1.542728 MHz.
The electron cooler voltage is: 104411 V. |
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32
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Sat Jun 21 00:52:07 2025 |
Carsten | Accelerator | Summary of the last days (bunches wiht several isotopes still in ) / frequency of the | Initially, we has very low SIS beam intensities
in the 1e8 region. Setting up ESR wiht Stacking
etc. turned out to be extremly tedious for |
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31
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Sat Jun 21 00:23:22 2025 |
Rodolfo | Laser | Dye | I have prepared new (fresh) dye solutions
of Fluorescein 27: 2 charges. They are in
the Safety Cabinet (Sicherheitsschrank) in |
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30
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Fri Jun 20 15:58:21 2025 |
Wilfried, Konstantin, Simon | Laser | Laser stepwidth | From previous Bi-Beamtimes, we expect the
width of the transition to be >50GHz (FWHM).
The current step width is 0.002nm which corresponds |
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29
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Fri Jun 20 11:25:32 2025 |
Julien, Kristian, Konstantin | Laser | Automated laser scans | In contrast to entry [URL=https://elog.gsi.de/esr/E0052_2025/12]E12[/URL],
the cabling for the automated start of the
laser scan is now connected to [B]IO3 of |
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28
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Fri Jun 20 06:37:51 2025 |
Konstantin | Accelerator | Position of contaminants | I checked the positions of the contaminants.
Therefore, I drove the scrapers and observed
the signal at the Schottky detector
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