堆内超临界水回路辐照装置物理参数模拟研究  

Simulation Study on Physical Parameters of In-pile Supercritical Water Loop Irradiation Facility

作　　者：段世林[1] 刘汉刚[1] 张之华[1] 米向秒[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《原子能科学技术》2013年第12期2313-2316,共4页Atomic Energy Science and Technology

摘　　要：堆内超临界水回路对我国超临界水堆燃料和结构材料的辐照腐蚀实验具有重要意义,辐照装置位于反应堆堆芯栅格,是超临界水回路的核心部件。采用MCNP程序模拟研究辐照装置的关键物理参数,并考虑超临界水热物特性对物理参数的反馈效应。计算得到辐照装置热中子注量率为4.72×1013 cm-2·s-1,快中子注量率为1.55×1014 cm-2·s-1,辐照产热率为14.7kW,反应性引入为0.045%。In-pile supercritical water loop is essential for irradiation and corrosion tests of candidate fuel and structural materials of supercritical water reactor. The irradiation facility is the key component of the loop, positioned in the grid of the reactor core. Physical parameters were calculated with MCNP code, considering the thermal feedback. The thermal neutron and fast neutron fluence rate, irradiation heating and reactivity insertion of the irradiation facility are respectively .

关 键 词：堆内超临界水回路 超临界水堆 辐照装置 中子注量率 

分 类 号：TL329.2[核科学技术—核技术及应用]