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Development of Dual-Energy X-ray CT using Synchrotron Radiation
https://repo.qst.go.jp/records/67705
https://repo.qst.go.jp/records/67705d076b549-b226-4e99-97d1-687adf8abce1
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2004-01-19 | |||||
| タイトル | ||||||
| タイトル | Development of Dual-Energy X-ray CT using Synchrotron Radiation | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Torikoshi, Masami
× Torikoshi, Masami× Tsunoo, Takanori× Sasaki, Makoto× Endo, Masahiro× Noda, Yutaka× Ohno, Yumiko× Kohno, Toshiyuki× Natsuhori, Masahiro× Kakizaki, Takehiko× Yamada, Naoaki× Ito, Nobuhiko× Hyoudou, Kazuyuki× Uesugi, Kentaro× Yagi, Naoto× 取越 正己× 角尾 卓紀× 佐々木 誠× 遠藤 真広× 野田 豐× 大野 由美子× 河野 俊之× 夏堀 雅宏× 柿崎 竹彦× 山田 直明× 伊藤 伸彦× 兵藤 一行 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Monochromatic x-ray CT at two different energies provides information about electron density without ambiguity due to the beam hardening effect. This information makes the treatment planning for heavy-ion radiotherapy more precise. We have started a feasibility study on the dual-energy x-ray CT by using synchrotron radiation. We developed a linear scanning CT system(1D-CT) in order to evaluate what precision in the measurement was achieved. Comparison fo measured electron densities with the theoretical values proved that these values were in afreement in 0.9 % on average. We haave developed a 2D-CT system with a two-dimensional scintillator array to take images in a short time. At present, it has been proved that the electron density is measured in the precision of about 1 %. Effectove atomic numbers are obtained as well from the dual-energy x-ray CT. They present a different feature of an object, and the contrasts in the images differ from that in a conventional CT image. The feature of the images may help distinguish more clearly tissues or organs with aid of difference contrast from the conventional CT images. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | International Symposium on Portable Synchrotron Light Sources and Advanced Applications | |||||
| 発表年月日 | ||||||
| 日付 | 2004-01-14 | |||||
| 日付タイプ | Issued | |||||
