上海质子治疗装置束流输运系统物理设计  

Physical design of beam transport system of shanghai proton therapy facility

作　　者：段雪非[1,2] 张满洲[1] 李浩虎[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800 [2]中国科学院研究生院,北京100049

出　　处：《核技术》2011年第5期381-385,共5页Nuclear Techniques

摘　　要：介绍上海质子治疗装置束流输运系统的设计。输运系统将主环引出的能量为70-250MeV的质子束送入不同治疗室,并实现所需的束斑形状。匹配主要考虑共振慢引出造成的相空间畸形和治疗计划对束流形态的要求,通过TRANSPORT程序进行匹配,得到了输运系统的磁聚焦结构和线性光学参数曲线图。通过模拟发现,该设计有较大的灵活性,能满足不同的束斑形态需求。Shanghai proton therapy facility consists of a linac, a synchrotron and 4 treatment rooms. The proton beams of 70-250 MeV extracted from the synchrotron are delivered to the treatment rooms through beam transport lines. According to the treatment requirements, beam energy and beam spot size can be regulated. In this article, a layout of the transport system is given. The beam matching is done with Transport code. The Twiss function graphs, and the quadrupole parameters calculated for different beam energies and beam spot sizes, are given. The design goal, idea, method and results of the transport line are presented, too.

关 键 词：束流输运系统 束流匹配 磁聚焦结构 线性光学参数 

分 类 号：TL501.5[核科学技术—核技术及应用]