The evaluated data will be taken into chinese evaluation nuclear data library ( cendl ) and served as the basis of theoretical calculations 此数据将收入中国评价中子核数据库,并作为理论计算的基础。
Now the project has been finished and all the sets of data are to be taken into cendl after investigated by the chinese nuclear data committee 目前,该工作已顺利完成,经国家核数据委员会审查后将收入中国评价核数据库。
As well known , in the file 5 of endf - vi , the energy distribution of secondary neutron are represented by various analytical formulations 众所周知,在评价核数据库endf -版的文档5中,次级中子能量分布数据以不同的表达方式来描述。
Finally theoretical results and the experimental data have been compared and analyzed . the theoretical results are in good agreement with the experimental data . after evaluated , the results have been adopted in the nuclear data library of china 理论计算的总截面、弹性截面、去弹截面和弹性散射角分布等结果和实验数据符合很好,同时该两组光学势参数以及计算结果被中国核数据库收录。
Therefore , it is necessary to improve and develop it though vastly practical calculation . based on this , the paper deals with the numerical simulated calculating codes of ngsn , anisn , dot and the nuclear libraries of wu , fendl - 2 which have been frequently used on the field of particle physics and nuclear physics . it is through benchmark and development that the discrete ordinate particle transport calculating software kit is formed 本文正是从这个角度出发,对在粒子物理和核物理领域广泛应用的数值模拟计算程序ngsn , anisn , dot等程序和核数据库uw , fendl - 2等数据库作一系统的校核和发展,最终形成离散纵标粒子输运计算软件包,并初步探讨了它们的应用,为粒子物理和核物理的研究和设计提供保障。
There are five important evaluated nuclear data libraries : brond ( russian ) , endf / b - vi ( usa ) , jendl ( japan ) , jef ( europe ) and cendl ( china ) , which are developed on the basic of different experiment data and different experiment data processing model , that is to say , the five libraries have some pertinences different to each other 计算机模拟计算时使用的核数据库一般称为工作数据库(或者称为应用数据库) ,它是在基本评价数据库核素基本数据信息的基础上的应用数据库加工程序(如njoy , transx ) ,经过数据提取、加工制作以及数据个数转换等过程得到的。
Mastering the output format of covariance of neutron cross section in endf / b - 6 evaluated nuclear data library , clearly understanding the meaning of each physical quantity , grasping the mathematical methods pf covariance for experimental nuclear data and evaluated nuclear data , a set of evaluation processing method was deduced from the meaning of cross sections and errors . and then a program was developed for evaluating and processing the covariance matrix of experimental data , which are output in the endf / b - 6 format 在熟悉endf / b - 6评价中子核数据库协方差文档的格式要求,确定各个量的物理意义,并掌握实验和评价数据的协方差数学处理方法的基础上,由截面数据及截面误差的物理意义,推出了一套合适的评价处理方法,最后编写了按endf / b - 6格式输出的协方差数据评价处理程序,作为中国评价中子核数据库( cendl )协方差文档的数据输出程序。