硼中子俘获治疗(BNCT)真空系统  

Vacuum System for Boron Neutron Capture Therapy(BNCT)

作　　者：刘顺明 欧阳华甫 胡志良[1,2] 宋洪 黄涛[1,2] 王鹏程 刘佳明[1,2] 关玉慧 谭彪[1,2] 刘盛进 肖永川[1,2] 曹秀霞 吕永佳[1,2] 薛康佳 吴煊[1,2] 康明涛 BNCT团队 LIU Shun-ming;OUYANG Hua-fu;HU Zhi-liang;SONG Hong;HUANG Tao;WANG Peng-cheng;LIU Jia-ming;GUAN Yu-hui;TAN Biao;LIU Sheng-jin;XIAO Yong-chuan;CAO Xiu-xia;LU Yong-jia;XUE Kang-jia;WU Xuan;KANG Ming-tao;BNCT Team(Spallation Neutron Source Science Center,Dongguan 523808 China;Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049 China)

机构地区：[1]散裂中子源科学中心,广东东莞523808 [2]中国科学院高能物理研究所,北京100049

出　　处：《真空》2020年第6期64-68,共5页Vacuum

基　　金：珠江人才计划(2017ZT07S225)。

摘　　要：硼中子俘获治疗(BNCT)装置由一台ECR离子源、一条低能传输线(LEBT)、一台3.5MeV射频四极加速器(RFQ)、一条高能传输线(HEBT)和一个靶站组成。本文首先介绍了BNCT真空系统的组成,对比了BNCT与CSNS离子源真空系统的差异,给出了HEBT真空系统设计方案和气载计算方法。利用Molflow软件模拟计算了HEBT真空系统的静态压力分布和打靶时的动态压力分布,并与目前运行的真空状态进行比对。The boron neutron capture therapy(BNCT)device consists of an ECR ion source,a low energy transmission line(LEBT),a 3.5 MeV radio frequency quadrupole accelerator(RFQ),a high energy transmission line(HEBT)and a target station.The article first introduces the composition of the BNCT vacuum system,compares the differences between the BNCT and CSNS ion source vacuum systems,and gives the HEBT vacuum system design scheme and gas production calculation method.Using the Molflow software,the static pressure distribution of the HEBT vacuum system and the dynamic pressure distribution during beam bombardment are calculated and compared with the current vacuum state.

关 键 词：硼中子俘获治疗 真空系统组成 高能传输线 Molflow 压力分布 

分 类 号：TL53[核科学技术—核技术及应用] TB75[一般工业技术—真空技术]