HOME ESR EXPERIMENTS LABS etc
E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028 E0038
  proton-capture on 118Te, Page 23 of 29  Not logged in ELOG logo
Entry  Sun Mar 15 17:13:21 2020, Laszlo, Jan, Calibration, the x-ray gate issue,  IMG_20200315_172129.jpg
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.
Entry  Sun Mar 15 17:14:08 2020, Laszlo, Calibration, run036 - Xray90 calib Am241, distance 200!,  
Detector: 90
Source: Am241 
Distance: 200mm
Entry  Sun Mar 15 17:33:17 2020, Laszlo, Calibration, run037 - Xray90 calib Am241,  run037_241Am_145.png
Detector: 90
Source: Am241 
Distance: 167.5mm
Entry  Sun Mar 15 17:50:42 2020, Laszlo, Calibration, run038 - Xray90 calib Ba133, high rate,  run038_133Ba_high_145.png
Detector: 90
Source: Ba133 - high rate
Distance: 167.5mm
Entry  Sun Mar 15 18:09:19 2020, Laszlo, Calibration, run039 - Xray90 calib Ba133,  
Detector: 90
Source: Ba133
Distance: 167.5mm
Entry  Sun Mar 15 18:53:42 2020, Laszlo, Calibration, run040 - Xray145 calib Am241,  run040_241Am_90.png
Detector: 145
Source: Am241
Distance: 305mm
Entry  Sun Mar 15 19:22:58 2020, Laszlo, Calibration, run041 - Xray145 calib Ba133 - high rate,  run041_133Ba_high_90.png
Detector: 145
Source: Ba133
Distance: 305mm
Entry  Sun Mar 15 19:46:34 2020, Laszlo, Calibration, run042 - Xray35 calib Ba133 - high rate,  
Detector: 35
Source: Ba133, strong source
Distance: 334mm
Entry  Sun Mar 15 20:26:08 2020, Laszlo, Calibration, run043 - Xray35 calib Am241,  run043_241Am_35.png
Detector: 35
Source: Am241
Distance: 334mm
Entry  Sun Mar 15 21:01:23 2020, Laszlo, Calibration, run044 - Xray35 calib Ba133 - a night long run ,  run044_133Ba_high_35.png
Detector: 35
Source: Ba133
Distance: 334mm
Entry  Mon Mar 16 15:15:22 2020, Jan, Calibration, Gamma- and X-ray intensities for efficiency calib,  
Intensities for special gamma or x-ray lines needed for efficiency calibration can be found here:

Entry  Fri Mar 20 19:37:43 2020, Jan, Calibration, Xray energies - rough 1. calibration ,  
-- E calibration seems to have changed! ---

This calibration is based on the source data taken before the experiment:
Entry  Mon Mar 23 15:48:15 2020, Laszlo, Calibration, run105 - Xray90 calib Am241, distance 167.5mm, wrong?,  
Detector: 90
Source: Am241 
Distance: 167.5mm
Entry  Mon Mar 23 16:17:58 2020, Laszlo, Calibration, run106 - garbage!,  
run106 was clicked by accident, please delete!
Entry  Mon Mar 23 16:21:33 2020, Laszlo, Calibration, run107 - Xray90 calib Am241, distance 167.5mm,  
Detector: 90
Source: Am241 
Distance: 167.5mm
Entry  Mon Mar 23 17:32:42 2020, Laszlo, Calibration, run108 - Xray90 calib Ba133, distance 167.5mm - high rate - deadtime too high!,  
Detector: 90
Source: Ba133 - strong source
Distance: 167.5mm
Entry  Mon Mar 23 17:40:33 2020, Laszlo, Calibration, run109 - Xray90 calib Ba133, distance 167.5mm -low rate,  
Detector: 90
Source: Ba133 - weak source
Distance: 167.5mm
Entry  Mon Mar 23 18:17:27 2020, Laszlo, Calibration, run110 - Xray90 calib Ba133, distance 167.5mm -low rate - LESS NOISE,  
Detector: 90
Source: Ba133 - weak source
Distance: 167.5mm
Entry  Mon Mar 23 19:32:53 2020, Laszlo, Calibration, run112 - Xray90 calib Am241, distance 200mm - LESS NOISE,  
Detector: 90
Source: 241Am
Distance: 200mm
Entry  Mon Mar 23 20:52:37 2020, Laszlo, Calibration, run113 - Xray145 calib Am241, distance 305mm - LESS NOISE,  
Detector: 145
Source: 241Am
Distance: 305mm
ELOG V3.1.5-fc6679b