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中国首座低浓铀微堆满功率运行 一次装料运行30年

2016-03-28 08:20:20   观察者网

资料图:中国首座微型中子源反应堆低浓化改造圆满完成

据新华网报道,记者26日从国防科工局获悉,我国首座微型中子源反应堆(Miniature neutron source reactor,简称微堆)圆满完成低浓化改造,实现首次满功率运行。这是继核安保示范中心建成运行后,我国在核安保领域取得的又一重要成绩,也是中美核安保合作的重大成果。

国防科工局局长、国家原子能机构主任许达哲表示,微堆低浓化改造,是降低高浓铀流失风险、提升核安保水平的有力举措,也是中美核安保领域合作的重要内容。国家原子能机构将本着自愿、务实的原则,与其他国家分享低浓化改造技术经验,协商开展类似改造项目,全面提升全球核安保水平。

2011年底,中国国家原子能机构批准中国原子能科学研究院与美国能源部阿贡实验室合作,对原子能院微堆进行低浓化改造,卸出微堆高浓铀堆芯,装入低浓铀燃料堆芯。微堆低浓化改造涉及堆芯物理设计、结构设计、燃料组件设计制造、装卸料、乏燃料管理、反应堆实验调试等诸多环节。改造过程中,工程技术人员攻克了一批关键技术,确保了微堆的核安全。

据介绍,该堆的主要用途包括中子活化分析、核仪器探头的考验、教学及培训、少量同位素生产等。改造后的微堆固有安全性更高,一次装料可运行30年。观察者网军事观察员指出,这种反应堆装料少,因此同等重量下可以拥有较一般反应堆更好的安全措施,可以在人口密集等条件区域安装使用。

责任编辑:张海潮 CM013
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