超高通量快中子研究堆需求分析

实现超高快中子通量是世界先进研究堆的重要发展方向，对于加快第四代先进核能系统燃料及材料创新发展具有重要意义。本文从先进核能堆内结构材料与核燃料的辐照考验、长反应链超钚元素生产等角度，初步分析了我国建设超高通量快中子研究堆的必要性。在此基础上，确定了超高通量快中子研究堆的堆芯最大中子注量率及其冷却剂，给出了反应堆主要参数及冷却剂流动方案。反应堆热功率为200 MW，冷却剂为铅铋合金，最大中子注量率大于1016 cm?2·s?1。 

Requirement Analysis on Ultra-high Flux Fast Neutron Research Reactors

Achieving the ultra-high fast neutron flux is an important development direction of the world's advanced research reactors, which is of great significance for accelerating the innovative development of fuels and materials for the fourth generation advanced nuclear power system. From the aspects of the irradiation test of structural materials and nuclear fuels in advanced nuclear reactor and the production of long-reaction-chain transplutonium element, this paper preliminarily analyzes the necessity of building ultra-high flux fast neutron research reactor in China. On this basis, the core maximum neutron fluence rate and its coolant of the ultra-high flux fast neutron research reactor are determined, and the main parameters of the reactor and the coolant flow scheme are given as follows: the thermal power of the reactor is 200MW, the coolant is lead-bismuth alloy, and the maximum neutron fluence rate is more than 1016 cm?2·s?1.