【作者】 谢云； 张东； 吴涛； 廉冰；

【机构】 中国工程物理研究院核物理与化学研究所； 中国辐射防护研究院；

【摘要】 某反应堆是一座轻水慢化轻水冷却堆,根据国家规划和科研生产的调整,该反应堆已完成其历史使命进行退役阶段,整个反应堆退役工作历时近10年,因此必须关键核素进行研究,有利于确定关键的核素及关键照射途径,通过对涉及的主要核素的毒性、环境影响评价等方面进行探讨,确定了该反应堆的关键核素为⁶⁰Co、¹⁵²Eu,关键的照射途径为地表沉积外照射和吸入内照射。更多还原

【Abstract】 one nuclear reactor is water-tardiness and water-cooling reactor for research,basis on the regulation of national programming and scientific research mission,the reactor had fulfilled its mission and turned into decommission.The whole decommissionning work will operate through more than 10-years,so key nuclide must be researched and decided,and then can ensured the key nuclide and key irradiation appoach,through the toxicity、 environment influence appraise of the main nuclide,The results show that key nuclide was ⁶⁰Co,¹⁵²Eu,the key irradiation appoach is external irradiation of upper sediment and inhalation inner irradiation.更多还原