| 铅和混凝土中宽束医用X、γ射线透射曲线的拟合方程 |
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| 引用本文： | 李士骏. 铅和混凝土中宽束医用X、γ射线透射曲线的拟合方程[J]. 辐射防护, 2001, 21(6): 342-348,353 |
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| 作者姓名： | 李士骏 |
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| 作者单位： | 苏州大学核医学院 |
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| 摘 要： | 根据国际放射防护委员会（ICRP）给出的屏蔽材料铅和混凝土中宽束医用X、γ射线的透射曲线，采用自编的曲线拟合计算机程序得到了相应曲线的拟合方程；由此导出ICRP推荐值相一致的十分之一值厚度；计算了医用X射线装置典型工作负荷下，与源不同距离时对于初级X射线的屏蔽厚度，结果与相同条件下ICRP的参考值差别大多在10%以下。
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| 关 键 词： | 屏蔽防护 γ射线 透射 透射系数 透射比 放射医学 拟合方程 辐射防护 铅 混凝土 X射线 |
FITTING FUNCTION OF BROAD-BEAMTRANSMISSION OF MEDICAL X AND GAMMA RAYSTHROUGH LEAD AND CONCRETE |
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| Li Shijun. FITTING FUNCTION OF BROAD-BEAMTRANSMISSION OF MEDICAL X AND GAMMA RAYSTHROUGH LEAD AND CONCRETE[J]. Radiation Protection, 2001, 21(6): 342-348,353 |
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| Authors: | Li Shijun |
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| Abstract: | According to broad beam transmission of medical X and gamma rays through lead and concrete given by ICRP, appropriate fitting functions were presented using curve fitting code programmed by myself. Thereby, tenth value thickness was derived, which are coincident with values recommended by ICRP. Thickness needed to shield from primary X rays for typical working loadings of X ray apparatus and different distances from source were calculated, which differ from the values under same condition given in ICRP 33 by less than 10% mostly. ( |
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| Keywords: | Shielding Protection Calculation Computerization Broad beam of X and Gamma Rays Used in Medicine Transmission Fitting Function) |
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