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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  KAKEN_id
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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