Design study of a raster scanning system for moving target irradiation in heavy-ion radiotherapy
Design study of a raster scanning system for moving target irradiation in heavy-ion radiotherapy
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DOI：
10.1118/1.2558213
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发表时间：
2007-03-01
期刊：
影响因子：
3.8
通讯作者：
Kanai, Tatsuaki
中科院分区：
文献类型：
--
作者：
Furukawa, Takuji;Inaniwa, Taku;Kanai, Tatsuaki
为了进一步发展碳离子疗法，启动了一个项目，建造一个新的治疗设施，作为千叶现有重离子医疗加速器设施的延伸。本课题的最大挑战是实现对运动靶点的扫描照射治疗。为此，我们决定联合收割机重新扫描技术和门控照射方法。为了确定如何避免热点和/或冷点的相对大量的重新扫描在可接受的照射时间内，我们已经研究了扫描策略，扫描磁铁及其控制，和束流强度的动态控制。设计了光栅扫描系统，并对运动目标进行了辐照仿真。结果表明，笔形束扫描对运动目标照射的实际实现是可能的。我们描述了我们的光栅扫描系统的HIMAC新的治疗设施的设计研究的现状。(c)2007年美国医学物理学家协会。
A project to construct a new treatment facility as an extension of the existing heavy-ion medical accelerator in chiba (HIMAC) facility has been initiated for further development of carbon-ion therapy. The greatest challenge of this project is to realize treatment of a moving target by scanning irradiation. For this purpose, we decided to combine the rescanning technique and the gated irradiation method. To determine how to avoid hot and/or cold spots by the relatively large number of rescannings within an acceptable irradiation time, we have studied the scanning strategy, scanning magnets and their control, and beam intensity dynamic control. We have designed a raster scanning system and carried out a simulation of irradiating moving targets. The result shows the possibility of practical realization of moving target irradiation with pencil beam scanning. We describe the present status of our design study of the raster scanning system for the HIMAC new treatment facility. (c) 2007 American Association of Physicists in Medicine.