| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-11-05 |
| タイトル |
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タイトル |
Development of a GAGG gamma camera for the imaging of prompt gammas during proton beam irradiation |
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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 |
Yamamoto Seiichi (Waseda Univ.)
Yamashita Tomohiro (Kobe Proton Center)
Kobashi Yusuke (Kobe Proton Center)
Yabe Takuya
Nakanishi Kohei (Nagoya Univ.)
Akagi Takashi (Hyogo Ion Beam Medical Center)
Yamaguchi Mitsutaka
Kawachi Naoki
Kamada Kei (Tohoku Univ.)
Yoshikawa Akira (Tohoku Univ.)
Kataoka Jun (Waseda Univ.)
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Prompt gammas imaging (PGI) is a promising method for observing a beam’s shape and estimating the range of the beam from outside a subject. However 2 dimensional images of prompt gammas (PGs) during irradiation of protons were still difficult to measure. To achieve PGI, we developed a new gamma camera and imaged PGs while irradiating a phantom by proton beams. We also simultaneously measured prompt X-ray (PX) images with an X-ray camera from opposed direction and compared the images. The developed gamma camera uses a 10 mm thick GAGG block optically coupled to a flat panel photomultiplier tube (FP-PMT), and it is contained in a 20 mm thick tungsten container with a pinhole collimator attached. A poly-methyl-methacrylate (PMMA) block was irradiated by proton beams with total number of the protons similar to the clinical level, and the gamma camera imaged PGs and X-ray camera imaged PXs simultaneously. For all of the tested beams, we could measure the beam shapes of the PGs and the PXs and the ranges could also be estimated from the images. For both PG and PX images, time sequential images and accumulated images could be derived. We confirmed that the PGI using our developed gamma camera, as well as PXI, is promising for beam imaging and range estimation in proton therapy. |
| 書誌情報 |
Physica Medica
巻 127,
p. 104847,
発行日 2024-11
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| 出版者 |
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出版者 |
Elsevier |
| 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 |
1724-191X |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.ejmp.2024.104847 |
