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本文比较了Ｎ＋离子注入和６０Ｃｏγ射线对ＰｘＧＶ感染活性的影响，并用多种辐射生物学模型拟合、分析了它们的剂量效应关系。结果表明：在中高剂量区（１０１５－１０１７Ｎ＋／ｃｍ２），ＰｘＧＶ感染率的剂效关系遵循指数失活规律，而在更宽的剂量段内（１０１２－１０１７Ｎ＋／ｃｍ２），曲线则呈特有的“马鞍型”。用多种数学模型对实验数据进行计算机拟合，发现ＥＭＣ模型和三次项方程能较好拟合上述曲线。讨论了多种“马鞍型”剂效曲线的凹点剂量Ｄｃ值与实验系统的直径以及与注入离子质量沉积效应之间的可能联系。γ辐照组的剂效曲线基本为指数型关系
In this paper, we compared the effects of N + ion implantation and 60Coγ-ray on the activity of PxGV infection, and fitted with a variety of radiation biological models to analyze their dose-response relationship. The results showed that the efficacy relationship of PxGV infection rate followed the exponential law of inactivation in medium and high doses (1015-1017N + / cm2), while in the wider dose range (1012-1017N + / cm2) Saddle type. “ Using a variety of mathematical models for computer simulation of the experimental data, it is found that the EMC model and the cubic equation can better fit the above curve. The possible relationship between the Dc value of the pitting dose and the diameter of the experimental system and the deposition effect of the implanted ions are discussed for various ”saddle" efficiency curves. The dose-response curves of γ-irradiation group are basically exponential