• NUCLEAR TECHNIQUES
  • Vol. 45, Issue 11, 110403 (2022)
Song YANG, Xiaoquan ZHANG, Changming DENG*, Yanting ZHANG, Fei XU, Lingling GUAN, and Shaoqiang DUAN
Author Affiliations
  • China Institute for Radiation Protection, Taiyuan 030006, China
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    DOI: 10.11889/j.0253-3219.2022.hjs.45.110403 Cite this Article
    Song YANG, Xiaoquan ZHANG, Changming DENG, Yanting ZHANG, Fei XU, Lingling GUAN, Shaoqiang DUAN. Design of portable multi-function radiation detection system[J]. NUCLEAR TECHNIQUES, 2022, 45(11): 110403 Copy Citation Text show less
    Overall structure diagram of portable multi-function radiation detector
    Fig. 1. Overall structure diagram of portable multi-function radiation detector
    Signal processing circuit for GM counter
    Fig. 2. Signal processing circuit for GM counter
    Design of back-end processing circuit of neutron detector
    Fig. 3. Design of back-end processing circuit of neutron detector
    Response spectra of detector to neutrons, 137Cs-γ, 60Co-γ
    Fig. 4. Response spectra of detector to neutrons, 137Cs-γ, 60Co-γ
    Minimum system control circuit
    Fig. 5. Minimum system control circuit
    Software design flow chart
    Fig. 6. Software design flow chart
    Energy resolution test
    Fig. 7. Energy resolution test
    Electromagnetic compatibility experiment
    Fig. 8. Electromagnetic compatibility experiment

    参考辐射场

    Reference radiation field

    约定真值 Conventional truth value / mSv∙h-1平均值 Average value/ mSv∙h-1相对误差 Relative error / %
    137Cs5.71×10-48.27×10-415
    137Cs6.03×10-37.11×10-315
    137Cs6.47×10-27.54×10-216
    137Cs1.20×10-11.41×10-117
    137Cs5.99×10-15.24×10-1-13
    137Cs6.085.21-14
    137Cs59.848.7-18
    137Cs435404.0-7.1
    60Co551487.0-12
    60Co720618.5-14
    60Co1 164995.0-15
    Table 1. Test results of relative intrinsic error of γ dose equivalent rate
    参考辐射场Reference radiation field约定真值 Conventional truth value / μSv∙h-1平均值Average value/ μSv∙h-1相对误差Relative error / %
    Am-Be66.560.4-9.2
    Am-Be220229.14.1
    252Cf708744.35.1
    252Cf2 3402 260-3.4
    Table 2. Test results of relative intrinsic error of neutron dose equivalent rate
    参考辐射场Reference radiation field约定真值Conventional truth value/ μSv∙h-1平均值Conventional truth value/ μSv∙h-1响应Response能量响应Energy response
    L-5548.938.90.901.01
    L-7050.343.30.860.96
    L-10050.944.50.870.97
    L-17046.542.00.901.01
    L-24041.436.70.891.00
    137Cs36.644.00.891.00
    60Co34.239.11.141.28
    Table 3. Test results of LaBr3 detector energy response
    参考辐射场Reference radiation field

    约定真值Conventional truth value

    / μSv∙h-1

    平均值Conventional truth value/ μSv∙h-1响应Response能量响应Energy response
    N-60865649.70.750.85
    N-809381 029.01.101.25
    N-1009271 0501.131.28
    N-120891884.20.991.13
    N-1501 2831 2180.951.08
    N-200821833.41.021.16
    N-250791744.40.981.11
    137Cs8237270.881.00
    60Co4864340.891.01
    Table 4. Test results of GM detector energy response
    Song YANG, Xiaoquan ZHANG, Changming DENG, Yanting ZHANG, Fei XU, Lingling GUAN, Shaoqiang DUAN. Design of portable multi-function radiation detection system[J]. NUCLEAR TECHNIQUES, 2022, 45(11): 110403
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