Efficiency calibration in the lab Detector: GEM1800 - 90 deg Source: 210Pb Distance: 167.5mm Start time: 9:58:00 - 30.04.2021 Stop time: 10:01:09 - 30.04.2021 file name: e127b_run0005.lmd avrg. rate: 50Hz dead-time: 1% Still rate peaks, probably the ESR kicker or some other external influence. So we have double triggers occasionally. This might slightly affect deadtime determination.
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.
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.
crap run
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.
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.
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.
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.
59.54 0.00212 0.00007 26.34 0.00180 0.00011 53.16 0.00215 0.00007 79.61 0.00218 0.00008 81.00 0.00222 0.00007 34.95 0.00209 0.00007 35.87 0.00209 0.00009 30.80 0.00199 0.00006 46.54 0.00217 0.00009
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...
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.
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.
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.
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.
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.
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!
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.
the attached efficiency curve for the 35 deg. xray detector is made with the runs e127b_run0015.lmd e127b_run0016.lmd e127b_run0017.lmd + e127b_run0019.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.
59.54 0.00007352 0.00000236 26.34 0.00006169 0.00000377 53.16 0.00007545 0.00000262 79.61 0.00007978 0.00000292 81.00 0.00007687 0.00000242 34.95 0.00007378 0.00000237 35.87 0.00007433 0.00000309 46.54 0.00007075 0.00000302
Efficiency calibration in the lab Detector: GLP2000 - 35 deg Source: 210Pb Distance: 334mm Start time: 14:21:09 - 06.05.2021 Stop time: 21:06:10 - 06.05.2021 file name: e127b_run0021.lmd avrg. rate: 5 Hz dead-time: 0% Blocking gate 2.5 us in vulom. Threshold < 10keV The scale serial communication is off.