Sun Mar 15 17:13:21 2020, Laszlo, Jan, Calibration, the x-ray gate issue,
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We found a strange behaviour of our ADC gates for the x-ray detectors.
The setting as shown in the foto below corresponds to a delay of 5 us and a gate length of 15 us.
This is the only setting that produces nice spectra, even though the signals and gate are not aligned.
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Sun Mar 15 17:14:08 2020, Laszlo, Calibration, run036 - Xray90 calib Am241, distance 200!,
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Detector: 90
Source: Am241
Distance: 200mm
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Sun Mar 15 17:33:17 2020, Laszlo, Calibration, run037 - Xray90 calib Am241,
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Detector: 90
Source: Am241
Distance: 167.5mm
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Sun Mar 15 17:50:42 2020, Laszlo, Calibration, run038 - Xray90 calib Ba133, high rate,
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Detector: 90
Source: Ba133 - high rate
Distance: 167.5mm
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Sun Mar 15 18:09:19 2020, Laszlo, Calibration, run039 - Xray90 calib Ba133,
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Detector: 90
Source: Ba133
Distance: 167.5mm
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Sun Mar 15 18:53:42 2020, Laszlo, Calibration, run040 - Xray145 calib Am241,
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Detector: 145
Source: Am241
Distance: 305mm
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Sun Mar 15 19:22:58 2020, Laszlo, Calibration, run041 - Xray145 calib Ba133 - high rate,
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Detector: 145
Source: Ba133
Distance: 305mm
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Sun Mar 15 19:46:34 2020, Laszlo, Calibration, run042 - Xray35 calib Ba133 - high rate,
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Detector: 35
Source: Ba133, strong source
Distance: 334mm
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Sun Mar 15 20:26:08 2020, Laszlo, Calibration, run043 - Xray35 calib Am241,
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Detector: 35
Source: Am241
Distance: 334mm
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Sun Mar 15 21:01:23 2020, Laszlo, Calibration, run044 - Xray35 calib Ba133 - a night long run ,
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Detector: 35
Source: Ba133
Distance: 334mm
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Mon Mar 16 15:15:22 2020, Jan, Calibration, Gamma- and X-ray intensities for efficiency calib,
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Intensities for special gamma or x-ray lines needed for efficiency calibration can be found here:
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Fri Mar 20 19:37:43 2020, Jan, Calibration, Xray energies - rough 1. calibration ,
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-- E calibration seems to have changed! ---
This calibration is based on the source data taken before the experiment:
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Mon Mar 23 15:48:15 2020, Laszlo, Calibration, run105 - Xray90 calib Am241, distance 167.5mm, wrong?,
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Detector: 90
Source: Am241
Distance: 167.5mm
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Mon Mar 23 16:17:58 2020, Laszlo, Calibration, run106 - garbage!,
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run106 was clicked by accident, please delete! |
Mon Mar 23 16:21:33 2020, Laszlo, Calibration, run107 - Xray90 calib Am241, distance 167.5mm,
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Detector: 90
Source: Am241
Distance: 167.5mm
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Mon Mar 23 17:32:42 2020, Laszlo, Calibration, run108 - Xray90 calib Ba133, distance 167.5mm - high rate - deadtime too high!,
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Detector: 90
Source: Ba133 - strong source
Distance: 167.5mm
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Mon Mar 23 17:40:33 2020, Laszlo, Calibration, run109 - Xray90 calib Ba133, distance 167.5mm -low rate,
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Detector: 90
Source: Ba133 - weak source
Distance: 167.5mm
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Mon Mar 23 18:17:27 2020, Laszlo, Calibration, run110 - Xray90 calib Ba133, distance 167.5mm -low rate - LESS NOISE,
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Detector: 90
Source: Ba133 - weak source
Distance: 167.5mm
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Mon Mar 23 19:32:53 2020, Laszlo, Calibration, run112 - Xray90 calib Am241, distance 200mm - LESS NOISE,
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Detector: 90
Source: 241Am
Distance: 200mm
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Mon Mar 23 20:52:37 2020, Laszlo, Calibration, run113 - Xray145 calib Am241, distance 305mm - LESS NOISE,
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Detector: 145
Source: 241Am
Distance: 305mm
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