全堆芯Pin-by-pin均匀化方法在压水堆生产同位素中的应用研究

打开文本图片集

中图分类号：TL48 文献标识码：A文章编号：1672-3791（2026）04-0120-05

Research on the Application of Pin-by-pin Homogenization Method in lsotope Production of Pressurized Water Reactor

HE Caiyun1LI Tianya1，2 DUAN Yongqiang1，2 LIAO Hongkuan1，2 GUAN Zhonghua1，2

1.Chengdu HezongNuclearPowerResearchandDesign Engineering Co.，Ltd.;2.Nuclear PowerResearch Institute ofChina，Chengdu，SichuanProvince，61O213China

Abstract： In the physical design of presurized water reactors， programs based on component homogenization are usually adopted.With the emergenceof diversified nuclear energy demands such as the production of medical isotopes by irradiation incommercial pressurized water reactor nuclear power plants，it is often necessary to place the iradiated materials inguide tubes or mix them into fuel rod fuel cels.This requires accurate production of isotopes at thecellevel.The non-uniformityof neutrons in thereactor core obviously increases，andmoreaccuratecalculation methods than the two-step method based on component homogenization need to be studied.Based on the machine-learning forcorrecting the environmental effcts of gridelement homogenizationand clustering based for compressing grid element homogenization parameters，this paper proposes a full-core Pin-by-pin homogenization method proces.The method is validated through isotope production in the Hualong 1 pressurized water reactor，effectively improving the calculation accuracy of isotope production in pressrized water reactors.

Keywords： Pressurized water reactor;Pin-by-pincalculation; Isotope production; Pin-cellhomogenization

近年来，随着我国核能技术的进步，核能产业也在多样化发展，商用压水堆已不仅用于发电，还逐步应用于医用同位素辐照生产等场景。（剩余4563字）