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ゲル線量計用光CT 装置の光源色依存性について
https://doi.org/10.24517/00055106
https://doi.org/10.24517/00055106cde62b12-4f3e-4ef0-94ab-e72b1dfb4e1f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
2434-1509_43-1_71-78.pdf (7.8 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-08-02 | |||||
| タイトル | ||||||
| タイトル | ゲル線量計用光CT 装置の光源色依存性について | |||||
| タイトル | ||||||
| タイトル | Light source color dependence of optical CT for gel dosimeter | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Optical CT | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Light source color | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | spectrum | |||||
| 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 | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.24517/00055106 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
中山, 和也
× 中山, 和也× 小出, 智生× 鈴木, 理臣× 佐南谷, 葉月× 和田, 拓也× 武村, 哲浩 |
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| 著者別表示 |
Nakayama, Kazuya
× Nakayama, Kazuya× Koide, Tomoki× Suzuki, Riomi× Sanatani, Hatsuki× Wada, Takuya× Takemura, Akihiro |
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| 書誌情報 |
Journal of wellness and health care en : Journal of wellness and health care 巻 43, 号 1, p. 71-78, 発行日 2019-08-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2434-1509 | |||||
| 出版者 | ||||||
| 出版者 | Wellness and Health Care Society | |||||
| 出版者（別名） | ||||||
| 出版者 | ウェルネス・ヘルスケア学会 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We have developed and evaluated a prototype optical computed tomography (CT) system for gel dosimetry that measures the amount of irradiation in three dimensions. The major advantage of this CT is that the light source color can be changed as required. The projection data are obtained using a color camera. The images of the red, green, and blue components can be extracted separately from the color images. Black and white images (brightness values) can also be synthesized from color images. Although optical CT using a color camera has been reported previously, there have been no reports of optical CT with a variable light source color. In this study, we investigated the influence of light source color and each color component obtained by the camera on measurements of samples. The radiochromic dye hydrogel dosimeter has different colors depending on its composition, and its color changes over time. Therefore, we used a sample of blue ink instead of a dosimeter in this study. First, the light transmission spectrum of the blue ink samples used was investigated. Next, we investigated the relationship between the pixel values of the reconstructed image and the light source color. The blue ink sample showed a large change in transmitted light in the wavelength band of 500 to 700 nm corresponding to colors mainly in the red region. Next, by changing the color of the light source, we investigated which color component obtained by the color camera was suitable for measurement. The results indicated that the red component was suitable for this purpose. When a different radiochromic dye hydrogel dosimeter is used, it is possible to select a suitable light source color and a suitable camera color component by measuring the transmitted light spectrum of the gel dosimeter. |
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| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 見出し | ||||||
| 大見出し | 原著 | |||||
| 言語 | ja | |||||
| 見出し | ||||||
| 大見出し | Original Article | |||||
| 言語 | en | |||||
