靶学说是解释放射生物效应的一种理论,一般认为对于哺乳类动物细胞的照射,大约需将每个细胞灭活其1～10个靶,才能将细胞杀死,即N≈1～10。平均灭活一个靶的照射剂量是D_(37),D_(37)≈165rad(110～～240rad)。本文的目的在于探讨多靶单击存活率对于每次照射剂量选择的参考意义。 Target theory is a theory that explains the effects of radiobiological effects. It is generally believed that for the irradiation of mammalian cells, it is necessary to inactivate each cell by 1 to 10 targets in order to kill the cells, ie N≈1～10. The average irradiation dose for inactivating one target was D 37, D 37 ≈165 rad (110 ～240 rad). The purpose of this article is to investigate the reference significance of multi-target click survival for each dose selection.