| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-10-01 |
| タイトル |
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タイトル |
Feasibility of three-dimensional range verification for carbon-ion therapy by measuring secondary electron bremsstrahlung: A Monte Carlo simulation study |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Tsuda Michiko
Yamaguchi Mitsutaka
Yabe Takuya
Nagao Yuuto
Kawachi Naoki
Watabe Hiroshi
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
Secondary-electron-bremsstrahlung (SEB) imaging is a promising approach for range verification in particle therapy. However, it has so far been limited to two-dimensional projection images. To verify the dose distribution from these images, three-dimensional (3D) SEB imaging is required. Therefore, we investigated its feasibility in carbon-ion therapy. Monte Carlo simulations modeled SEB generation and detection using an X-ray camera system. Reconstructed SEB images visualized the depth and lateral distributions of carbon-ion beams under various range and lateral beam position conditions. One-dimensional profile analyses using individual slices estimated range and lateral beam position with errors up to 4.2 and 4.7 mm, respectively. Summed profiles integrating SEB intensity across orthogonal planes improved accuracy, reducing maximum errors to 1.3 mm for ranges and 2.9 mm for lateral beam position. These results indicate that SEB-based imaging is a promising noninvasive approach for obtaining 3D depth information of the carbon-ion beams. |
| 書誌情報 |
Japanese Journal of Applied Physics
発行日 2025-09
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| 出版者 |
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出版者 |
IOP Publishing |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1347-4065 |
| DOI |
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|
識別子タイプ |
DOI |
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関連識別子 |
10.35848/1347-4065/ae0776 |
