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中子对机体的生物作用较强。由回旋加速器产生的中子引起的白内障比200千伏X线的相对生物效应高3-9倍。晶体对中子特别敏感,小剂量中子即可使晶体遭受损伤,形成白内障的潜伏期亦较短。随着中子在工、农、医等方面的应用日益增多,近年来对中子性白内障的研究也越来越受重视。日本增田义哉在1953-1955年检查了520名原子弹受害生存者,发现有白内障者138名(26.6％)。上海张氏报告在16例中子源接触者的裂隙灯检查中,发现有晶体混浊者7人,占43.75％,白内障发生率为就业前的17倍。山东省医科所对129例中子测井人员(年龄17-48岁)及132例非放射性人员(年龄18-45岁)进行调查,发现从事中子工作人员晶体混浊发生
Neutron on the biological role of the body stronger. Neutron-induced neutron production by cyclotrons is 3-9 times more potent than 200 kV X-rays. Crystal is particularly sensitive to neutrons, small doses of neutrons can damage the crystal, the formation of cataract has a shorter incubation period. With the increasing use of neutrons in agriculture, medicine and other fields, the research on neutron cataract has gained more and more attention in recent years. Japan’s Masuda Yasuda examined 520 survivors of the atomic bomb from 1953 to 1955 and found 138 cataracts (26.6%). Shanghai Zhang reported in 16 cases of neutron source contact slit lamp examination, found that crystal opacity 7 people, accounting for 43.75%, cataract incidence of 17 times before employment. Shandong Medical Institute of 129 neutron loggers (aged 17-48 years) and 132 non-radioactive personnel (aged 18-45 years) were investigated and found that the neutron workers in the crystal opacity occurred