核反应堆物理确定论计算程序系统NECP软件包的研发与应用

NECP软件包是西安交通大学反应堆物理团队开发的确定论核反应堆物理计算程序系统，软件包包括自主化的NECP-Atlas、Bamboo、X和SARAX程序。NECP软件包经过了大量的验证与确认。数值结果表明，NECP软件包精度高，可满足不同反应堆物理计算需求，具有高度的通用性并实现了对压水堆的高保真建模和计算。目前程序已应用于我国大型压水堆项目、示范快堆项目等重点工程。应用结果表明，NECP软件包已达到甚至优于国际先进核设计程序水平，对我国核电软件自主化和核设计能力提升具有重要的意义。

Development and Application of NECP Code Package of Deterministic Nuclear Reactor Physics Code System

The NECP code package is a deterministic nuclear reactor physics code system developed by the Reactor Physics Team of Xi’an Jiaotong University. The NECP code package includes NECP-Atlas, Bamboo, X and SARAX codes. The code package was verified and validated by a large number of benchmarks and evaluated experiments. The numerical results show that the NECP code package has high precision and can meet the physics calculation requirements of different reactors. It has wide generality and realizes high fidelity modeling and simulation of pressurized water reactor. At present, the NECP code package was applied to several key projects such as large-scale pressurized water reactor project and demonstration fast reactor project in China. The application results show that the NECP code package reaches or even surpasses the level of other nuclear design codes abroad, and has great significance in Chinese code autonomy of nuclear power and improvement of nuclear design capability.