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| Rotating wheel filter design and optimization for a uniform depth dose distribution in heavy ion therapy | |
| 作者姓名： | 周清明 张红 李强 危黎黎 刘新国 顾梦霞 吴桂红 戴中颖 |
| 作者单位： | 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;2 Graduate School of Chinese Academy of Sciences, Beijing 100049, China;3 Key Laboratory of Heavy Ion Radiation Medicine of Gansu Province, Lanzhou 730000, China;4 College of Arts and Science of Jianghan University, Wuhan 430000, China;5 Hubei University of Technology, Wuhan 430068, China;6 School of Sciences, Central South University of Forestry and Technology, Zhuzhou 412006, China |
| 摘 要： | Treatment planning of heavy-ion radiotherapy involves predictive calculation of not only the physical dose but also the biological dose in a patient body. The goal in designing beam-modulating devices for heavy ion therapy is to achieve uniform biological effects across the spread-out Bragg peak (SOBP). To achieve this, a mathematical model of Bragg peak movement is presented. The parameters of this model have been resolved with Monte Carlo method. And a rotating wheel filter is designed basing on the velocity of the Bragg peak movement. |
| 关 键 词： | heavy ion spread-out Bragg peak rotating wheel filter Monte Carlo method |
| 收稿时间： | 2008-7-17 |
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