Design study of a raster scanning system for moving target irradiation in heavy-ion radiotherapy

被引：115

作者：

Furukawa, Takuji ^{[1
]}

Inaniwa, Taku ^{[1
]}

Sato, Shinji ^{[1
]}

Tomitani, Takehiro ^{[1
]}

Minohara, Shinichi ^{[1
]}

Noda, Koji ^{[1
]}

Kanai, Tatsuaki ^{[1
]}

机构：

[1] Natl Inst Radiol Sci, Res Ctr Charged Particle Therapy, Med Phys Res Grp, Inage Ku, Chiba 2638555, Japan

来源：

MEDICAL PHYSICS | 2007年 / 34卷 / 03期

关键词：

particle therapy; pencil beam scanning; moving target;

D O I：

10.1118/1.2558213

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 [临床医学]; 100207 [影像医学与核医学]; 1009 [特种医学];

摘要：

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.

引用

页码：1085 / 1097

页数：13

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