 Thu May 6 11:03:46 2021, Jan Glorius, DAQ, Cabling Documentation, 2021 
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Thu May 6 09:40:37 2021, Jan Glorius, Calibration, run0020 - Xray35 calib Ba133_hi d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 133Ba_hi
Distance: 334mm
Start time: 9:42:24 - 06.05.2021
Stop time: 14:03:44 - 06.05.2021
file name: e127b_run0020.lmd
avrg. rate: 90 Hz
dead-time: 1%
Blocking gate 2.5 us in vulom.
Threshold < 10keV
The scale serial communication is off. |
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Wed May 5 21:22:27 2021, Jan Glorius, Calibration, run0019 - Xray35 calib Pb210 d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 210Pb
Distance: 334mm
Start time: 21:22:06 - 05.05.2021
Stop time: 8:55:21 - 06.05.2021
file name: e127b_run0019.lmd
avrg. rate: 5 Hz
dead-time: 0%
Blocking gate 2.5 us in vulom.
Threshold < 10keV
The scale serial communication is off.
Many rates spikes, check carefully! |
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Wed May 5 14:29:02 2021, Jan Glorius, Calibration, run0017 crap run, 2021
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Wed May 5 14:24:57 2021, Jan Glorius, Calibration, run0018 - Xray35 calib Pb210 d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 210Pb
Distance: 334mm
Start time: 14:28:26 - 05.05.2021
Stop time: 21:05:00 - 05.05.2021
file name: e127b_run0018.lmd
avrg. rate: 5 Hz
dead-time: 0%
Blocking gate 2.5 us in vulom.
Threshold < 10keV
The scale serial communication is off.
There are many rate spikes in the first hour of measurement. |
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Wed May 5 10:02:27 2021, Jan Glorius, Calibration, run0016 - Xray35 calib Ba133_hi d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 133Ba_hi
Distance: 334mm
Start time: 10:02:07 - 05.05.2021
Stop time: 14:13:23 - 05.05.2021
file name: e127b_run0016.lmd
avrg. rate: 90 Hz
dead-time: 1%
Blocking gate 2.5 us in vulom.
Threshold < 10keV
The scale serial communication is off. |
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Tue May 4 21:18:15 2021, Jan Glorius, Calibration, run0015 - Xray35 calib Am241_hi d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 241Am_hi
Distance: 334mm
Start time: 21:17:44 - 04.05.2021
Stop time: 8:42:09 - 05.05.2021
file name: e127b_run0015.lmd
avrg. rate: 25 Hz
dead-time: 0%
Blocking gate 2.5 us in vulom.
Threshold < 10keV
The scale serial communication is off. |
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Tue May 4 16:04:42 2021, Jan Glorius, Calibration, run0014 - Xray35 calib Am241_hi d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 241Am_hi
Distance: 334mm
Start time: 16:04:21 - 04.05.2021
Stop time: 20:41:45 - 04.05.2021
file name: e127b_run0014.lmd
avrg. rate: 25 Hz
dead-time: 0%
Blocking gate 2.5 us in vulom.
Threshold < 10keV
The scale serial communication is off. |
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Tue May 4 14:46:15 2021, Jan Glorius, Calibration, run0013 - Xray35 calib Am241_hi d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 241Am_hi
Distance: 334mm
Start time: 14:45:51 - 04.05.2021
Stop time: 15:47:48 - 04.05.2021
file name: e127b_run0013.lmd
avrg. rate: 25 Hz
dead-time: 0%
Blocking gate 2.5 us in vulom.
Threshold < 10keV
The scale serial communication is off. |
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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.
The solution for now is, that we activate weight control NOT DURING MEASUREMENT! |
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Tue May 4 14:31:51 2021, Jan Glorius, Calibration, run0012 - Xray35 calib Am241_hi d=334mm, 2021
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Efficiency calibration in the lab
Detector: GLP2000 - 35 deg
Source: 241Am_hi
Distance: 334mm
Start time: 14:31:24 - 04.05.2021
Stop time: 14:42:13 - 04.05.2021
file name: e127b_run0012.lmd
avrg. rate: 25 Hz
dead-time: 0%
Threshold < 10keV
The scale serial communication is off.
Stopped due to noise rate... |
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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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E [keV] | xray90 (GEM1800) | xray35 (GLP) | xray145 (GEM3000)
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| lab (28.04.21) | lab (04.05.21) | lab (11.05.21)
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59.54 | 2402.45 ch | 2399.07 ch | 2423.24 ch
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26.34 | 1107.38 ch | 1116.65 ch | 1127.94 ch
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13.95 | 624.33 ch | 638.38 ch | 645.39 ch
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slope A | 0.0256387 keV/ch | 0.0258923 keV/ch | 0.0256408 keV/ch
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offset B | -2.05477 keV | -2.57638 keV | -2.59114 keV
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Sat May 1 22:34:16 2021, Jan Glorius, Calibration, efficiency xray 90deg, 2021
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the attached efficiency curve for the 90 deg. xray detector is made with the runs
e127b_run0008.lmd
e127b_run0009.lmd
e127b_run0010.lmd
All of them were taken in the lab (not in ESR).
This is a very preliminary analysis!
E.g. deadtime has been estimated and was not cleanly determined. |
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Fri Apr 30 14:48:01 2021, Jan Glorius, Calibration, run0011 - Xray90 calib Ba133_low d=167.5mm , 2021
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Efficiency calibration in the lab
Detector: GEM1800 - 90 deg
Source: 133Ba_low
Distance: 167.5mm
Start time: 14:47:40 - 30.04.2021
Stop time: 15:50:12 - 30.04.2021
file name: e127b_run0011.lmd
avrg. rate: 310 Hz
dead-time: 3%
Now with blocking gate to get rid of multiple triggers.
Dead time determination using: adt/bdt
Threshold at ~10keV
We have some external noise on the signal. |
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Fri Apr 30 14:35:11 2021, Jan Glorius, Calibration, run0010 - Xray90 calib Ba133 d=167.5mm , 2021
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Efficiency calibration in the lab
Detector: GEM1800 - 90 deg
Source: 133Ba_high
Distance: 167.5mm
Start time: 14:34:51 - 30.04.2021
Stop time: 14:45:42 - 30.04.2021
file name: e127b_run0010.lmd
avrg. rate: 2600 Hz
dead-time: 16%
Now with blocking gate to get rid of multiple triggers.
Dead time determination using: adt/bdt
Threshold at ~10keV
We have some external noise on the signal. |
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Fri Apr 30 13:56:59 2021, Jan Glorius, Calibration, run0009 - Xray90 calib Am241 d=167.5mm , 2021
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Efficiency calibration in the lab
Detector: GEM1800 - 90 deg
Source: 241Am_high
Distance: 167.5mm
Start time: 13:56:33 - 30.04.2021
Stop time: 14:28:53 - 30.04.2021
file name: e127b_run0009.lmd
avrg. rate: 600Hz
dead-time: 4%
Now with blocking gate to get rid of multiple triggers.
Dead time determination using: adt/bdt
Threshold at ~10keV
We have some external noise on the signal. |
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Fri Apr 30 13:10:44 2021, Jan Glorius, Calibration, run0007 - crap, 2021
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crap run |
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Fri Apr 30 13:07:23 2021, Jan Glorius, Calibration, run0008 - Xray90 calib Pb210 d=167.5mm , 2021
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Efficiency calibration in the lab
Detector: GEM1800 - 90 deg
Source: 210Pb
Distance: 167.5mm
Start time: 13:08:35 - 30.04.2021
Stop time: 13:49:56 - 30.04.2021
file name: e127b_run0008.lmd
avrg. rate: 60Hz
dead-time: 1%
Now with blocking gate to get rid of multiple triggers.
Dead time determination using: adt/bdt
Threshold at ~10keV
We have some external noise on the signal. |
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Fri Apr 30 11:04:31 2021, Jan Glorius, Calibration, run0006 - Xray90 calib Pb210 d=167.5mm , 2021
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Efficiency calibration in the lab
Detector: GEM1800 - 90 deg
Source: 210Pb
Distance: 167.5mm
Start time: 11:04:03 - 30.04.2021
Stop time: 11:53:59 - 30.04.2021
file name: e127b_run0006.lmd
avrg. rate: 50Hz
dead-time: 1%
Now with blocking gate to get rid of multiple triggers.
Dead time determination using: adt/bdt
Threshold at ~20keV
Last seconds of run may not be usable: DAQ node2 has been deactivated shortly by mistake. |
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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.
The solution now is to have an extended blocking gate active in the trlo-config of node 2.
There is now a trigger_stretch of 2500ns for all Xray triggers:
trig_stretch(1) = 2500ns;
trig_stretch(2) = 2500ns;
trig_stretch(3) = 2500ns;
This prevents the multiple triggers to reach the lmu (before_dt scalers)
However, this will also lead to a very small loss of good signal triggers that overlay within 2.5 us.
This has to be taken into account for deadtime determination. |