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タイトル: | Measurement of effective atomic numbers using energy-resolved computed tomography |
著者: | Yamashita, Yoshiki Kimura, Masashi Kitahara, Masaru Hamaguchi, Takumi Kanno, Ikuo Ohtaka, Masahiko Hashimoto, Makoto Ara, Kuniaki Onabe, Hideaki |
著者名の別形: | 神野, 郁夫 |
キーワード: | X-ray computed tomography effective atomic number energy-resolved CT white X-ray |
発行日: | 20-May-2014 |
出版者: | Taylor & Francis Group |
誌名: | Journal of Nuclear Science and Technology |
巻: | 51 |
号: | 10 |
開始ページ: | 1256 |
終了ページ: | 1263 |
抄録: | For ion radiation therapy, the measurement of effective atomic numbers, Z[eff], is necessary to know the material distribution in a human body; the range of ions entering the human body is influenced by the material distribution along their paths. Z[eff], however, cannot be measured at hospitals because monochromatic X-rays with different energies are necessary and are used only at synchrotron facilities. To make Z[eff] measurements at hand, we propose energy-resolved computed tomography (CT) using a “transXend detector”. By assigning two narrow energy ranges in the unfolding process of the data obtained by the transXend detector, Z[eff] for acrylic and aluminum can be estimated by energy-resolved CT. The estimated Z[eff] are compared with those obtained by dual-energy and monochromatic X-ray CT. |
著作権等: | This is an Accepted Manuscript of an article published by Taylor & Francis in "Journal of Nuclear Science and Technology" on 20 May 2014, available online: http://www.tandfonline.com/10.1080/00223131.2014.919881. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/198799 |
DOI(出版社版): | 10.1080/00223131.2014.919881 |
出現コレクション: | 学術雑誌掲載論文等 |
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