物质的等效原子序数具有广泛的用途,尤其是在辐射防护,剂量的测量和估算,判定物质对射线的等效性等方面更为常用。这是因为射线与物质的相互作用同该物质的等效原子序数(?)有着密切的关系,如果能够确定物质的等效原子序数 Substance equivalent atomic number has a wide range of uses, especially in radiation protection, dose measurement and estimation, to determine the equivalence of the material on the ray is more commonly used. This is because the interaction of the ray with the substance is closely related to the equivalent atomic number (?) Of the substance. If one can determine the equivalent atomic number of the substance