Energy response of the GAFCHROMIC EBT3 in diagnosis range

Tatsuhiro Gotanda, T. Katsuda, R. Gotanda, T. Kuwano, T. Akagawa, N. Tanki, A. Tabuchi, T. Shimono, Y. Kawaji, T. Ideguchi

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

6 被引用数 (Scopus)

抄録

Although GAFCHROMIC EBT3 (EBT3) as a radiochromic film shows only slight energy dependency errors in comparison with other radiochromic films, the influence of energy dependence in the diagnosis energy range (less than 100 keV) is larger in the high energy range (over 100 keV). Based on this characteristic, adaptation of the EBT3 dosimetry in the diagnosis range was investigated. The energy response of the EBT3 in the diagnosis range at 30, 40, 50, 60 keV was measured using the density-absorbed dose calibration curve of the absorbed dose versus film density for the EBT3. Various data (degree of leaning, coefficient of determination) of each effective energy were compared. The density - absorbed dose calibration curves were linearly correlated in each of the effective energies. There was an energy dependent error of approximately 0.2% from 30 to 60 keV. As a result, it can be seen that the EBT3 is available in the diagnosis energy range. However, the influence of the non-uniformity error caused by the repeatability of the scan method must be considered because EBT3 distortion has a serious influence on measurement precision.

本文言語英語
ホスト出版物のタイトルWorld Congress on Medical Physics and Biomedical Engineering, 2015
編集者David A. Jaffray
出版社Springer Verlag
ページ752-755
ページ数4
ISBN(印刷版)9783319193878
DOI
出版ステータス出版済み - 2015
外部発表はい
イベントWorld Congress on Medical Physics and Biomedical Engineering, 2015 - Toronto, カナダ
継続期間: 6月 7 20156月 12 2015

出版物シリーズ

名前IFMBE Proceedings
51
ISSN(印刷版)1680-0737

会議

会議World Congress on Medical Physics and Biomedical Engineering, 2015
国/地域カナダ
CityToronto
Period6/7/156/12/15

!!!All Science Journal Classification (ASJC) codes

  • バイオエンジニアリング
  • 生体医工学

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