【英国《国际核工程》 1 999年 4月号报道】　线性无阈 (L NT)剂量—效应关系的假说是支持核工业工作人员和一般公众设定辐射防护限值的基本科学原理 ,这一理论设想 ,任何辐射剂量水平都会增加患癌症的危险。虽然不可能证明低辐射剂量下射线照射量和癌症之间的直接关系 ,但动物 [International Nuclear Project, January 1999] The hypothesis of a linear, threshold-free (L NT) dose-response relationship is a fundamental scientific principle that supports nuclear industry workers and the general public in setting limits for radiation protection Theories envisage that any radiation dose level will increase the risk of cancer. Although it is not possible to demonstrate a direct relationship between radiation exposure and cancer at low doses, animals