Evaluation for self-powered neutron detector used in sodium-cooled fast reactor

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

Annals of Nuclear Energy Pub Date : 2025-02-16 DOI:10.1016/j.anucene.2025.111252

Sipeng Du, Qingmin Zhang, Yaodong Sang, Shiyu Liu

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Abstract

Due to the advantages of high-temperature tolerance, strong radiation resistance, tiny size, and self-powered feature, Self-Powered Neutron Detectors (SPNDs) have been widely used in the 2^nd and 3^rd generation reactors. The typical 4^th generation reactors have higher temperature, higher neutron flux, stronger irradiation, harder neutron energy spectrum and more ununiform neutron/gamma distribution than the 3^rd generation reactors. These features may affect SPND’s response performance when SPND is utilized in the 4^th generation reactors. Due to its advantages in the sustainable development of nuclear fission energy, Sodium-cooled fast reactor (SFR) is chosen for this study. It is found in the study that resonant absorption plays an important role due to the harder energy spectrum in the fast reactors. In the meanwhile, current amplitude, current components, and emitter burn-up have been compared for common emitter materials, suggesting Hf is more suitable for long-term use in SFR. Finally, Hf-SPND’s response dependence on deployment position has been studied and it’s found that the current amplitude and component vary considerably with positions, indicating that position correction is required.

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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.