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Distribution of Electron Density Using Dual-Energy X-Ray CT
https://repo.qst.go.jp/records/43258
https://repo.qst.go.jp/records/432583c50f163-66da-4e80-9ece-49e50e2986b2
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2003-11-10 | |||||
| タイトル | ||||||
| タイトル | Distribution of Electron Density Using Dual-Energy X-Ray CT | |||||
| 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 |
Tsunoo, Takanori
× Tsunoo, Takanori× Torikoshi, Masami× Sasaki, Makoto× Endo, Masahiro× Yagi, Naoto× Uesugi, Kentaro× 角尾 卓紀× 取越 正己× 佐々木 誠× 遠藤 真広 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Knowledge of electron densities for materials is important for treatment planning for proton and heavier-ion radiotherapy. In order to obtain the electron densities with high precision, we have developed dual-energy x-ray computed tomography using synchrotron radiation. Two monochromatic x-rays with different energies generated from synchrotron radiation enables tomographic imaging which produces a cross sectional image based on electron density plus an additional image based on effective atomic number. Experiments for the dual-energy x-ray CT were made on the BL20B2 beamline at SPring-8. An image intensifier system and a CCD camera were used as the 2D detectors. The measured electron densities were agreement to within 2 % of the theoretical ones. Electron density and effective atomic number provide different contrast in images. Dual-energy x-ray CT can be used for quantitative measurement of the material. | |||||
| 書誌情報 |
IEEE Transactions on Nuclear Science 巻 50, 号 5, p. 1678-1682, 発行日 2003-10 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0018-9499 | |||||
