Measurement of environmental level X, γ dose with conversion of complete spectra without deconvolution method of MC simulation

Cao Lei; Zhang Yaofeng; Yang Yang; Huang Jianwei; Zhang Xiaole

doi:10.11884/HPLPB202234.210300

Volume 34 Issue 2

Jan. 2022

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Cao Lei, Zhang Yaofeng, Yang Yang, et al. Measurement of environmental level X, γ dose with conversion of complete spectra without deconvolution method of MC simulation[J]. High Power Laser and Particle Beams, 2022, 34: 026005. doi: 10.11884/HPLPB202234.210300

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Cao Lei, Zhang Yaofeng, Yang Yang, et al. Measurement of environmental level X, γ dose with conversion of complete spectra without deconvolution method of MC simulation[J]. High Power Laser and Particle Beams, 2022, 34: 026005. doi: 10.11884/HPLPB202234.210300

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Measurement of environmental level X, γ dose with conversion of complete spectra without deconvolution method of MC simulation

doi: 10.11884/HPLPB202234.210300

1.
College of Nuclear Science and Technology, Beijing normal university, Beijing 100875, China
2.
Institute of Ionizing Radiation Metrology, National Institute of Metrology, Beijing 100013, China

Received Date: 2021-07-20
Rev Recd Date: 2021-09-08

Available Online: 2021-09-18

Publish Date: 2022-01-11

Abstract

Abstract

For the accurate measurement of environmental X/γ radiation dose rate, the conversion from energy spectrum to dose rate is used. In this paper, the energy spectrum and dose value of the electrically cooled high-purity germanium detector (HPGe detector) in the energy range of 0.01−1.5 MeV are obtained by Monte Carlo simulation. And the method “Conversion of complete spectra without deconvolution” is used for energy spectrum-dose conversion study. It is found that the dose rate calculated by Conversion of complete spectra without deconvolution method is in good agreement with the simulated dose rate. Experimental verification was carried out in the standard radiation field (Co-60, Cs-137) of the environmental γ radiation air absorbed dose of the China Institute of Metrology, the result shows that in the energy range of 0.01−1.5 MeV, the error between the dose rate value obtained by energy spectrum-dose conversion and the standard dose rate value is less than ±10%. The study shows that it is feasible to solve the energy spectrum-dose (rate) conversion coefficient by the method “Conversion of complete spectra without deconvolution”.
- MC simulation,
- energy spectrum to dose,
- HPGe detector,
- G(E) function method,
- conversion of complete spectra without deconvolution

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References(15)

References

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