本文报导了猪白细胞在体内和体外用不同水平的裂变中子照射后的染色体畸变。所用反应堆裂变中子的平均能量为1.2百万电子伏,γ射线的平均能量为2百万电子伏,中子与γ射线的比值为6:1。以平均组织剂量估算白细胞的受照剂量,平均组织剂量系根据组织当量模型在不同深度内的测量结果求得。每组两头母猪,剂量率为14.3拉德/分,总剂量 This article reports the chromosomal aberrations in pig leukocytes irradiated with different levels of fission neutrons in vitro and in vivo. The average energy used for reactor fission neutrons is 1.2 million electron volts, the average energy of gamma rays is 2 million electron volts, and the ratio of neutron to gamma rays is 6: 1. The mean dose of leukocytes was estimated as the average tissue dose, which was calculated from the measurement of the tissue equivalent model at various depths. Two sows per group, with a dose rate of 14.3 rad / min, total dose