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Title: The responses of three kinds of passive dosimeters to secondary cosmic rays in the lower atmosphere

For accurate measurements of the secondary cosmic rays by using passive dosimeters, the relative responses of the thermoluminescence dosimeter (TLD), optically stimulated luminescence (OSL) dosimeter, and radiophotoluminescent glass dosimeter (RPLGD) were studied. The cosmic-ray shower generator was used to simulate the secondary cosmic rays at the sea level. Monte Carlo simulations were performed to calculate the air kerma and absorbed doses in each kind of dosimeter. The results showed that compared with their responses to gamma rays of {sup 137}Cs, the relative responses of the TLD, OSL, and RPLGD were 0.786, 0.707, and 0.735 to the hard component of cosmic rays, respectively, and the values were 0.904, 0.838, and 0.857 to the soft component of cosmic rays, respectively. To verify the simulations results, an in situ measurement with the three kinds of dosimeters was performed at the same place. The results indicated that the secondary cosmic rays monitored with the three kinds of dosimeters were well consistent with each other provided their relative responses were taken into account.
Authors:
; ; ; ;  [1] ;  [2]
  1. Institute of Radiation Medicine, Fudan University, 2094 Xietu Road, Shanghai 200032 (China)
  2. Shanghai Institute of Measurement and Testing Technology, 1500 Zhangheng Road, Shanghai 201203 (China)
Publication Date:
OSTI Identifier:
22482639
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 86; Journal Issue: 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABSORBED RADIATION DOSES; CESIUM 137; COMPUTERIZED SIMULATION; EARTH ATMOSPHERE; GAMMA RADIATION; HARD COMPONENT; LUMINESCENCE; MONTE CARLO METHOD; SHOWERS; SOFT COMPONENT; THERMOLUMINESCENT DOSEMETERS