【摘要】 宽能谱超高通量试验堆（Tsinghua High Flux Reactor,THFR）是一种具备国际先进水平的水冷高通量反应堆，其辐照孔道未扰动的平均热、快中子通量可达2×10¹⁵ n·cm^-2·s^-1，具有中子通量高、能谱范围宽、辐照能力强、功能用途广等突出特点，综合辐照性能居于国际领先水平，在工业、农业、航天、医疗等领域具有重要应用。本文分析了THFR反应堆及相关系统、辐照应用系统的设计特点，包括采用“池壳式”堆本体结构、“低中子自屏”堆芯设计、弧板型燃料组件、旋转控制鼓、多用途辐照孔道设计、“能动-非能动”相结合安全系统设计等，并对该堆在核燃料和材料辐照考验、放射性同位素辐照生产、中子科学研究等领域的应用前景进行了展望。THFR为服务国家重大战略需求、保障人民生命健康、培育和发展新质生产力提供了有力支撑。更多还原

【Abstract】 The THFR（Tsinghua High Flux Reactor） represents an advanced water-cooled high flux reactor with unperturbed average thermal and fast neutron flux levels reaching 2×10¹⁵ n·cm^-2·s^-1, respectively. This reactor has several outstanding features including high neutron flux, broad neutron energy spectrum, strong irradiation capability, and versatile applications. Its comprehensive irradiation performance is at the international leading level and has important applications in industries, agriculture, aerospace, medical and other fields. This paper firstly analyzes the design characteristics of THFR reactor and related systems, as well as the irradiation application system, including the vessel-in-pool reactor body structure, low neutron self-shielding reactor core design, arc plate type fuel assemblies, rotating control drums, multi-purpose irradiation channel design, and a combination of active and passive safety system design, etc. Then, the application foreground is prospected in the fields of nuclear fuel and material irradiation testing, irradiation production of radioisotopes, neutron science research, etc. THFR provides strong support for serving major strategic needs, safeguarding people’s lives and health, and cultivating and developing new quality productive forces.更多还原