【摘要】 本文介绍了由土壤样品中天然放射性核素浓度间接测量环境陆地γ辐射照射量率值的方法和结果。对514个测点与用闪烁剂量率仪直接测量结果比较,83.7%测点在±30%误差范围内一致。对本省514个测点土壤样品的核素浓度和陆地γ辐射直接测量值,采用多元回归拟合的单位比活度-1m 高处陆地γ照射量率系数,测得的陆地γ照射量率与用 Harold.L.Beck 提供的该系数所得结果相一致。更多还原

【Abstract】 A method for indirectly measuring terrestrail γ exposure ratefrom environmental natural radionuclides in soil samples and its resultsare described.Comparing the results from indirect measurement with directmeasurement by scintillation-dose meter,83.7% of 514 sample are inagreement each other within 30% deviation.Polybasic regression model isapplied to fit direct measure results.The results of terrestrail γ exposuserate calculated using fit coefficients is in agreement with calculated values byBeck’s coefficients.更多还原