2008年6月
Computational modeling of beam-customization devices for heavy-charged-particle radiotherapy
PHYSICS IN MEDICINE AND BIOLOGY
- ,
- ,
- ,
- 巻
- 53
- 号
- 12
- 開始ページ
- 3113
- 終了ページ
- 3127
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0031-9155/53/12/003
- 出版者・発行元
- IOP PUBLISHING LTD
A model for beam customization with collimators and a range-compensating filter based on the phase-space theory for beam transport is presented for dose distribution calculation in the treatment planning of radiotherapy with protons and heavier ions. Independent handling of pencil beams in conventional pencil-beam algorithms causes unphysical collimator-height dependence in the middle of large fields, which is resolved by the framework comprised of generation, transport, collimation, regeneration, range-compensation and edge-sharpening processes with a matrix of pencil beams. The model was verified to be consistent with measurement and analytic estimation at a submillimeter level in the penumbra of individual collimators with a combinational-collimated carbon-ion beam. The model computation is fast, accurate and readily applicable to pencil-beam algorithms in treatment planning with the capability of combinational collimation to make the best use of the beam-customization devices.
- リンク情報
- ID情報
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- DOI : 10.1088/0031-9155/53/12/003
- ISSN : 0031-9155
- eISSN : 1361-6560
- ORCIDのPut Code : 23655048
- Web of Science ID : WOS:000257200600004