核反应堆堆芯物理分析技术自主化研究及在商用压水堆中的应用

Nuclear reactors play a central role in nuclear energy applications, with physical analysis being crucial for their design, operation, and maintenance. Historically, China has relied heavily on imported nuclear reactor physical analysis codes. As the nation strives for independent nuclear energy technology, developing proprietary nuclear reactor physical analysis codes has become a pressing need. In this paper, a series of works are introduced, including the evaluated nuclear data file CENDL-3.2, the nuclear data library generated by the NECP-Atlas processing code, and core physic analysis performed by Bamboo-C. These elements create an integrated system that covers the entire process of nuclear reactor physics analysis. The system is applied to analyze representative pressurized water reactors such as the HPR1000, M310 and its improved unit, and VVER1000 operated in China. Results show that the errors between calculated results from the system comprising CENDL-3.2, NECP-Atlas, and Bamboo-C and the measured values of key safety parameters for the PWR core are within acceptable limits for engineering applications. This confirms that the system is suitable for fully localizing the process of nuclear reactor core physical analysis technology.