中国核数据中心采用国际公认的群常数制作理论方法,包括共振重造方法、多普勒展宽方法、热散射率处理方法、群截面和散射矩阵计算方法、共振自屏处理方法等,历经理论公式推导、需求分析、系统设计、详细设计、代码编写、单元测试、子系统测试和系统集成测试等完整的核电软件研发环节,研发完成包括主驱动程序、评价数据输入输出模块、公共数学模块、系统公共子 China Nuclear Data Center adopts the internationally accepted theory of group constant production, including resonance reconstruction method, Doppler broadening method, thermal scattering rate method, group cross section and scattering matrix calculation method, resonance self-screen processing method and so on. Complete R & D of nuclear power software including derivation, requirement analysis, system design, detailed design, code preparation, unit testing, subsystem testing and system integration testing. The research and development includes the main driver, evaluation data input and output modules, public math modules, Common child