 Sat May 22 16:29:07 2021, Laszlo et al., General, coolers are back, 2021
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we can measure again.
(please write a detailed description if needed) |
Wed Jul 14 14:46:05 2021, Jan, Sophia, Detectors, collimator geometry, 2021 10x
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We have measured the collimator geometry. The annotations of the variables can be found in the attached sketch
[TABLE border="1"]
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Sat Mar 21 22:57:28 2020, Laszlo, Jan, DAQ, changing cables of the Xray 90 and 145,
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Energy signals of 90 and 145 degree detector have been checked and exchanged
They were connected to the wrong ADC channel.
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Sat May 29 13:43:39 2021, Tino, Rene, Yuri, Laszlo, Markus, Runs, change of settings, 2021
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from now on, everal beam setting will be different. We could not get the beam back to were it was before. When the scraper was pulled back by 2 cm, the
loe/energy beam was visible again via cap.
Schottky. However, no x-rays could be observerved during the target-on phase.
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Thu Apr 29 20:32:52 2021, Jan Glorius, Calibration, calibration sources, 2021
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We use the following list of sources for calibration of the Xray detectors:
- 210Pb [40.1 kBq (4%), 01.10.2020 12:00 UTC] [URL=https://elog.gsi.de/esr/X-Ray+Lab/201006_131944/20-006_210Pb_40kBq.pdf]SpecSheet[/URL]
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Thu Jan 23 16:35:47 2020, Laszlo, DAQ, cable documentation,
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Fri Feb 21 09:39:40 2020, Laszlo, DAQ, cable documentation,
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Wed Mar 11 14:33:44 2020, Laszlo, General, beam time manual,
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| Here you can find the digital version of the E127 beam time manual. |
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Mon Apr 6 23:00:51 2020, Laszlo, Calibration, beam energies for 124Xe and 118Te measurements,
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"The e- cooler settings were the same for the 124Xe and 118Te beams" - Sergey --> speed of the ions is the same --> same MeV/u
E_beam = 10.0606MeV/u
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Thu Jul 8 14:07:19 2021, Jan, Calibration, beam energies, 2021
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Table of ion energies calculated from cooler parameters
[TABLE border="1"]
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Thu May 20 17:31:50 2021, Jan, Laszlo, Beatriz, General, beam & target alignement, 2021
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beam and target alignement was checked by looking at the Xray rates. Best case when:
Target bump (position) SC 9: -18.5mm
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Thu Aug 29 10:02:22 2019, Jan, Detectors, bakeout at ESR setup,
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The bakeout for our detector setup has started on the evening of 27.08.2019
We have a temperature sensor in the vacuum next to the detector.
The goal is to maximize bakeout temperature, while not going above 125°C at the detector/sensor.
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Mon Mar 23 07:56:51 2020, Laszlo, General, Yuri made magick and we operate again,
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DSSSD was moved out (HV switched off)
also the scraper was mistakenly moved.
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Sun Mar 22 19:49:12 2020, Michael, Laszlo, Yuri, , Yuri is still tuning FRS,
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We filled the Xray detectors.
Yuri is sill tuning FRS for primary beam. |
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Wed May 26 14:28:23 2021, Jan, Analysis, Xrays from 118Te & 124Xe, 2021
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Attached is a plot of the uncalibrated energy spectra taken with the 90 degree xray detector for 118Te (red) and 124Xe (blue).
Shown is the region covering the K-alpha and K-REC peaks.
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Fri Mar 20 16:58:02 2020, Jan, DAQ, Xray2 & Xray3 cabling,
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We found that Xray2 and Xray3 the cabling is not consistent:
90 degree detector
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Tue May 4 14:34:51 2021, Jan Glorius, Detectors, Xray weight control induces signals, 2021
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When the readout/control of the det. weight control via serial connection is active, there is a clear signal induced in the Xray detectors for each command
sent.
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Sun May 16 11:54:12 2021, Jan Glorius, Calibration, Xray performance in lab, 2021
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These are the current Xray detector performances in the lab using data from run0046
[TABLE border="1"]
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Fri Apr 30 10:55:34 2021, Jan Glorius, DAQ, Xray multi-triggers - blocking gate, 2021
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From the CFD of Xray1 (90deg) we get multiple trigger signals every ~5sec for unknown reasons.
No hint from the preamp signals.
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Mon May 3 14:55:44 2021, Jan Glorius, Calibration, Xray energy calib. table, 2021
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Here is the table of energy calibration lines from Am241 for all Xray detectors for several measurements.
Also the linear fit parameters [ E(ch) = A*ch + B ] are given at the bottom of the table.
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