吉林大学学报(理学版)

• 物理 • 上一篇    下一篇

降能片对12C6+束流影响的Geant4模拟

易海云1, 赵广义1, 王明勇2, 马玉刚1, 王振超3, 周庆4, 李建1, 王健5   

  1. 1. 吉林大学 物理学院, 长春 130012； 2. 鞍山师范学院 物理系, 辽宁 鞍山 114005；3. 黑龙江省科学院 技术物理研究所, 哈尔滨 150086； 4. 天津市
    技术物理研究所, 天津 300192；5. 吉林大学 学报编辑部, 长春 130012
  • 收稿日期:2013-06-30 出版日期:2014-01-26 发布日期:2014-03-05
  • 通讯作者: 王健 E-mail:wang_j@jlu.edu.cn

Effect of Range Shifter to 12C6+ Beam Simulated via  Geant4 Method

YI Haiyun1, ZHAO Guangyi1, WANG Mingyong2, MA Yugang1, WANG Zhenchao3, ZHOU Qing4, LI Jian1, WANG Jian5   

  1. 1. College of Physics, Jilin University, Changchun 130012, China; 2. Department of Physics, Anshan Normal College, Anshan 114005, Liaoning Provin
    ce, China;3.  Institute of Technical Physics, Heilongjiang Academy of Science, Harbin 150086, China;4. Tianjin Institute of Technical Physics, Tianjin 300192, China; 5. Editorial Department of Journal of Jilin University, Changchun 130012, China
  • Received:2013-06-30 Online:2014-01-26 Published:2014-03-05
  • Contact: WANG Jian E-mail:wang_j@jlu.edu.cn

PDF (PC)

519

赞

摘要：

利用Geant4模拟每核子能量在80~360 MeV内碳离子束（12C6+）穿过靶质量厚度为0.5~4.0 g/cm2的有机玻璃、 铝、 铜和铅后的角度歧离值和能量歧离值, 并对比单能碳离子束直接进入水中和经降能片后再进入水中的Bragg峰. 模拟结果表明: 碳离子束的能量越高、 降能片的质量厚度和原子序数越小, 碳离子束经过降能片后的角度歧离和能量歧离值越小, 其Bragg峰所受影响也越小. 即若仅考虑角度歧离和能量歧离, 则低原子序数的材料更适合做降能片.

关键词: Geant4模拟, 角度歧离, 能量歧离, Bragg峰

Abstract:

The angle straggling and energy straggling of 12C6+ beam were simulated with  method of Geant4. And the energy of   12C6+beam ranged from 80 MeV to 360 MeV per nucleon, while the mass thickness of the target, PMMA,Al,Cu,Pb, ranged from 0.5 g/cm2 to 4.0 g/cm2. Besides, the Bragg peak of 12C6+ beam which have passed through range shifter was compared to the Bragg peak of mono\|energetic 12C6+  beam. The results of the simulation show that the energy of 12C6+  beam is higher, the thickness and atomic number of the target is lower, then the angle and energy straggling of 12C6+  beam after range shifter is lower, the effect of its Bragg peak is minimal. So, in the case of only consider the angle and energy straggling, the target of lower atomic number is more suitable for range shifter.

Key words:  Geant4 simulation, angle straggling, energy straggling, Bragg peak

中图分类号: 

  • O571.33
版权所有 © 《吉林大学学报(理学版)》编辑部
地址：吉林省长春市前进大街2699号　邮编：130012　电话：+86-431-88499428　E-mail: sejuj@jlu.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发