中子比释动能系数和辐射损伤截面计算程序KDC的研发

摘要

At present,the code to calculate factor of neutron kinetic energy released in material (KERMA) and radiation damage cross section based on the evaluated nuclear data in China is still a blank.Thus,in order to fill the gap,the method to calculate the neutron KERMA factors and radiation damage cross sections was established,and the corresponding calculation program KDC based on FORTRAN-90 program language was developed.In addition,to solve the unbalanced problem revealed in performing energy-balance check,a solution which uses the upper kinetic limits to replace the unreasonable KERMA factors was proposed and employed in the KDC program.Through a cross check between the KDC program and the HEATR module of widely used nuclear data processing program NJOY,the reliability of the KDC program,both in result and functionality,is confirmed.%为弥补国内在由评价核数据出发计算中子比释动能(KERMA)系数和辐射损伤截面的程序方面的空白,建立了中子KERMA系数和辐射损伤截面计算方法,并基于FORTRAN-90程序语言开发了具有自主知识产权的中子KERMA系数和辐射损伤截面计算程序KDC.另外,针对能量平衡检查过程中发现的能量不平衡问题,提出了一种对不合理KERMA系数进行直接修订的方法,即用运动学上限替代不合理KERMA系数,并在KDC程序中实现了这一修订功能.通过将KDC程序与国际上广泛应用的核数据处理程序系统NJOY中的HEATR模块的计算结果进行比对,验证了KDC程序在计算结果和功能上的可靠性.