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Performance of the NIRS fast scanning system for heavy-ion radiotherapy
https://repo.qst.go.jp/records/46271
https://repo.qst.go.jp/records/462714b31988c-24a7-4bd7-b5b7-c68ab8c75db6
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2012-02-23 | |||||
タイトル | ||||||
タイトル | Performance of the NIRS fast scanning system for heavy-ion radiotherapy | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Furukawa, Takuji
× Furukawa, Takuji× Inaniwa, Taku× Satou, Shinji× Shirai, Toshiyuki× Takei, Yuka× Takeshita, Eri× Mizushima, Kota× Iwata, Yoshiyuki× Himukai, Takeshi× Mori, Shinichiro× Fukuda, Shigekazu× Minohara, Shinichi× Takada, Eiichi× Murakami, Takeshi× Noda, Kouji× 古川 卓司× 稲庭 拓× 佐藤 眞二× 白井 敏之× 武井 由佳× 竹下 英里× 水島 康太× 岩田 佳之× 日向 猛× 森 慎一郎× 福田 茂一× 蓑原 伸一× 高田 栄一× 村上 健× 野田 耕司 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose: A project to construct a new treatment facility, as an extension of the existing HIMAC facility, has been initiated for the further development of carbon-ion therapy at NIRS. This new treatment facility is equipped with a 3D irradiation system with pencil-beam scanning. The challenge of this project is to realize treatment of a moving target by scanning irradiation. To achieve fast rescanning within an acceptable irradiation time, the authors developed a fast scanning system. Methods: In order to verify the validity of the design and to demonstrate the performance of the fast scanning prior to use in the new treatment facility, a new scanning-irradiation system was developed and installed into the existing HIMAC physics-experiment course. The authors made strong efforts to develop (1) the fast scanning magnet and its power supply, (2) the high-speed control system, and (3) the beam monitoring. The performance of the system including 3D dose conformation was tested by using the carbon beam from the HIMAC accelerator. Results: The performance of the fast scanning system was verified by beam tests. Precision of the scanned beam position was less than perpendicular to 0.5 mm. By cooperating with the planning software, the authors verified the homogeneity of the delivered field within perpendicular to 3% for the 3D delivery. This system took only 20 s to deliver the physical dose of 1 Gy to a spherical target having a diameter of 60 mm with eight rescans. In this test, the average of the spot-staying time was considerably reduced to 154 micro s, while the minimum staying time was 30 micro s. Conclusions: As a result of this study, the authors verified that the new scanning delivery system can produce an accurate 3D dose distribution for the target volume in combination with the planning software. | |||||
書誌情報 |
Medical Physics 巻 37, 号 11, p. 5672-5682, 発行日 2010-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0094-2405 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1118/1.3501313 |