医用质子和^12C离子束的物理性质研究  

Study of Physical Properties of Protons and ^(12)C Ions in Medical Application

作　　者：徐俊奎[1] 党秉荣[2] 陈熙萌[1] 李文建[2] 刘全婷[2] 

机构地区：[1]兰州大学核科学与技术学院,甘肃兰州730000 [2]中国科学院近代物理研究所,甘肃兰州730000

出　　处：《原子核物理评论》2009年第2期163-167,共5页Nuclear Physics Review

基　　金：国家自然科学基金资助项目(10775063)~~

摘　　要：质子和重离子在现代放射治疗手段中已起着不可替代的作用,这主要取决于其独特的物理性质。利用一步过程和两步过程的物理模型解释了离子能量损失的机制,同时结合Geant4软件包模拟质子和12C在水中的运输过程,研究了离子束的物理性质,并讨论了计算的结果,说明了质子和12C在医学中应用的优缺点。Depending on their unique physical properties, proton and heavy ions have taken an irreplaceable role in modern means of tumor treatment. One-step process and two-step process physical models were employed to explain the mechanism of ion energy loss. The transport process of proton and ^12C in water was simulated by Geant4 toolkit to study the physical properties of ion beam. The calculation results were discussed, which showed the advantages and disadvantages of proton and ^12C in the medical application.

关 键 词：物理性质 Bragg峰 放射治疗 

分 类 号：TL99[核科学技术—核技术及应用] R81[医药卫生—放射医学]