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普遍认为辐射致癌是电离辐射最重要的损伤效应.医学照射引起的集体有效剂量当量值已达到了天然辐射的10～20%,到目前为止,危险度因数是从原爆幸存者、强直性脊椎炎病人和因宫颈癌而接受治疗的女性患者等三大流行病学研究得出的.目前,获得的危险度因数都是从大剂量(超过0.3Gy)得到的.本文讨论了如何把吸收剂量和危险度因数外推到低剂量率照射的低剂量区域.
It is generally accepted that radiation-induced carcinogenesis is the most important damaging effect of ionizing radiation, and the collective effective dose equivalent of medical irradiation has reached 10-20% of the natural radiation. So far, the risk factor is from the original explosive survivors, ankylosing spine Inflammatory patients and women treated for cervical cancer and other three epidemiological studies derived from the current risk factors are obtained from a large dose (more than 0.3Gy) obtained.This article discusses how to absorb the dose And risk factors extrapolated to low-dose areas irradiated at low dose rates.