核医疗船反应堆屏蔽初步设计及优化

发布时间：2018-03-22 15:31

本文选题：核医疗船　切入点：微堆　出处：《强激光与粒子束》2017年01期 　论文类型：期刊论文

【摘要】：核医疗船的概念是在现有微堆(MNSR)技术的基础上提出的,它基于IAEA的癌症关怀项目,开发配备硼中子俘获治疗技术(BNCT)的远洋核医疗船,该项目开辟核科技应用的新领域。核医疗船的反应堆设计参考了已建成的医院中子照射器-1型(IHNI-1)反应堆,该堆采用重混凝土作为主要屏蔽材料,水池为方形,其体积和质量都很大,不能满足船用要求。为了使反应堆能够满足船用要求,使用蒙特卡罗方法对医院中子照射器的反应堆屏蔽系统进行重新设计和优化,通过对多个方案的综合对比,最终确定采用不锈钢、含硼聚乙烯为屏蔽材料,并将水池设计成结构紧凑的圆柱形结构,该屏蔽方案在保证安全的基础上,使屏蔽系统的质量和体积大大降低,满足了船用要求。
[Abstract]:The concept of nuclear medical ship is based on the existing microreactor MNSRs, which is based on the cancer care project of IAEA to develop an ocean-going nuclear medical ship equipped with boron neutron capture therapy technology. The reactor design of the nuclear medical ship is based on the built hospital neutron irradiator type 1 (IHNI-1) reactor, which uses heavy concrete as the main shielding material and a square pool. In order to enable the reactor to meet the requirements of the ship, Monte Carlo method was used to redesign and optimize the reactor shielding system of the hospital neutron irradiator. Through the comprehensive comparison of many schemes, stainless steel and boron containing polyethylene are adopted as shielding materials, and the tank is designed into a compact cylindrical structure. The shielding scheme is based on ensuring safety. The quality and volume of the shielding system are greatly reduced to meet the requirements of the ship.
【作者单位】：中国原子能科学研究院反应堆工程技术研究部;
【分类号】：TL328;;TL351.4

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