Implementation of dynamic Monte Carlo simulation using IMPC-NP for transient analysis of subcritical reactor driven by external neutron source

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Annals of Nuclear Energy Pub Date : 2025-03-28 DOI:10.1016/j.anucene.2025.111415

Peng Fang , Yanling Zhu , Feng Zhou , Qiuying Liang , Shijie Du , Yongwei Yang , Lei Yang

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引用次数: 0

Abstract

In order to meet the requirements of neutron dynamics analysis for China’s initiating Accelerator Driven System (CiADS), we have implemented the calculation function of neutron kinetic parameters (β_eff and Λ_eff) and the Dynamic Monte Carlo transient analysis function in the Monte Carlo code IMPC-NP. Most importantly, based on this, we have implemented a dynamic transient analysis function with external neutron sources. This is the first simulation using dynamic Monte Carlo code with external neutron sources. On the basis of verifying the reliability of the code, this article simulated the external neutrons under subcritical conditions and obtained the flux variation law under specific conditions. This code can simulate the transient evolution of neutrons in ADS core under different external neutron souces strength and distributions in the future, providing important reference data for beam control of accelerators in ADS facility. This code tool has significant application significance.

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来源期刊

Annals of Nuclear Energy 工程技术-核科学技术

CiteScore

4.30

自引率

21.10%

发文量

632

审稿时长

7.3 months

期刊介绍： Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.