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つくばリポジトリ (Tulips-R) >
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01 雑誌発表論文等 (Journal article, etc.) >
Medical physics >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2241/102040
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| Title: | Multi-layer energy filter for realizing conformal irradiation in charged particle therapy |
| Authors: | Sakae, Takeji
Nohtomi, Akihiro
Maruhashi, Akira
Sato, Masaru
Terunuma, Toshiyuki
Kohno, Ryosuke
Akine, Yasuyuki
Hayakawa, Yoshinori
Koike, Yasunori
榮, 武二
照沼, 利之 |
| Issue Date: | Feb-2000 |
| Publisher: | American Association of Physicists in Medicine |
| Journal Title: | Medical physics |
| Volume: | 27 |
| Issue: | 2 |
| Start Page: | 368 |
| End Page: | 373 |
| DOI: | 10.1118/1.598840 |
| PMID: | 10718141 |
| Abstract: | A new type of filter for charged particle radiotherapy is developed to reduce unwanted dose transfer to the normal tissues around a tumor. The new filter can make a static irradiation field where the width of the spread-out Bragg peak (SOBP) is two-dimensionally adjusted. That makes the field conformal to the tumor three-dimensionally. The filter is made of many layers produced by using stereolithography. The layer has a miniaturized structure that has geometrical similarity to the conventional ridge filter. Shapes of cone and pyramid are also usable for the unit-cell constructing the layer. The spread of the field in the depth direction is decided by the thickness of the filter, or by the number of layers. The experimental result of the irradiation using the ridge-type construction shows a good agreement with an estimate by the Monte Carlo calculation. By combining this technique with intensity modulation that has lateral position dependence, the conformal irradiation can be achieved by a simple procedure. |
| URI: | http://hdl.handle.net/2241/102040 |
| Rights: | ©2000 American Association of Physicists in Medicine |
| Text Version: | publisher |
| Appears in Collections: | Medical physics
照沼 利之 (Terunuma Toshiyuki)
榮 武二 (Sakae Takeji)
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