利用中国实验快堆生产放射性同位素的可行性研究

Feasibility Research on Radioisotope Production in China Experimental Fast Reactor

摘要: 中国实验快堆（CEFR）不仅能进行各种燃料、材料辐照实验，也是放射性同位素生产的优良平台。本文对CEFR的辐照性能进行了描述，并利用计算程序对适宜在CEFR上生产的同位素³²P、³³P、³⁵S、⁸⁹Sr、¹⁴C、⁶⁰Co进行理论计算，得到了产量和比活度等参数。计算结果表明，在CEFR堆芯辐照可得到纯度极高的³²P、³³P、³⁵S，利用快中子的（n，p）反应可得到无载体的⁸⁹Sr，在CEFR反射层布置慢化材料可得到比活度较高的¹⁴C、⁶⁰Co。以上结果表明，在CEFR上生产同位素是可行的。

Abstract: China Experimental Fast Reactor (CEFR) is used not only for all kinds of fuels and materials irradiation, but also as a good platform for production of radioisotopes. Irradiation performance of CEFR was described in this paper. The production and the specific activity of ³²P, ³³P, ³⁵S, ⁸⁹Sr, ¹⁴C and ⁶⁰Co were obtained by calculation code. The results show that high purity ³²P, ³³P and ³⁵S can be obtained in CEFR core, and none carrier ⁸⁹Sr can be produced by fast neutron (n, p) reaction. Meanwhile, high specific activity ¹⁴C and ⁶⁰Co can be produced in CEFR blanket by setting moderator. It is feasible to product these radioisotopes in CEFR.