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应用胞质分裂阻滞微核技术（简称CB微核法），探讨了X射线与60Coγ射线，以及不同剂量率的60Coγ射线诱发微核率与辐射剂量的量效关系。结果表明，剂量率相同，照射剂量相同，60Coγ射线辐照所得微核频率明显高于X射线照射所得微核频率。不同剂量率的60Coγ射线照射，高剂量率所得微核产率高。剂量效应曲线不仅与不同的辐射种类有关，而且同一种性质的射线在不同剂量率情况下，刻度曲线不一样，因而应选用不同剂量率作刻度曲线。在发生辐射事故时，应选用剂量率刻度曲线接近的一种。
The micronucleus technology of cytokinesis (referred to as CB micronucleus) was used to investigate the relationship between the dose of 60Coγ-rays induced by 60Coγ-rays and 60Coγ-rays. The results showed that the same dose rate, the same dose, the 60Coγ-ray irradiation micronuclei frequency was significantly higher than the frequency of micronuclei obtained by X-ray irradiation. Different doses of 60Coγ-ray irradiation, high-dose rate of micronuclei obtained high yield. Dose-response curve not only with different types of radiation, but with the same nature of the ray at different dose rates, the scale curve is not the same, so should use different dose rate for the calibration curve. In the event of a radiation accident, the dose rate calibration curve should be used close to the kind.