| 质子治疗装置的束流扩展研究 |
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| 引用本文： | 余建国,郁庆长. 质子治疗装置的束流扩展研究[J]. 中国物理 C, 1997, 21(9): 851-859 |
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| 作者姓名： | 余建国 郁庆长 |
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| 作者单位： | 中国科学院高能物理研究所 |
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| 摘 要： | 对扩展质子束流的双环双散射体方法进行了探讨, 研究了它的束流分布函数与束利用率和束分布均匀性的关系, 以及照射野形成距离的改变和束偏离对束流分布的影响. 计算了散射体的厚度与照射野的关系, 并提出了用液体散射体代替固体散射体的可能性.
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| 关 键 词： | 束流扩展 质子治疗 双环双散射体 照射野 束流偏离 剂量分布 |
Research for Beam Spreading of Proton Therapy Facility |
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| Yu Jianguo Yu Qingchang. Research for Beam Spreading of Proton Therapy Facility[J]. High Energy Physics and Nuclear Physics, 1997, 21(9): 851-859 |
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| Authors: | Yu Jianguo Yu Qingchang |
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| Abstract: | In this paper, the dual-ring double scatterng method of proton beam spreading, such as the relation of beam distribution function with beam uniformity and beam efficiency, the effection of beam misalignment the variation of beam along longitudinal direction are studied. The depths of dual -ring double scatterers corresponding to different beam field are calculated. Liquor scatterer instead of solid one is proposed. |
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| Keywords: | beam spreading proton therapy dual -ring double scattering beam field beam misalignment dose distribution. |
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