X-ray tube voltage dependence of detective quantum efficiencies of front and back screens

Hidetaka Arimura, Takeshi Ikari, Mitsuhide Okamoto, Hideaki Kubota, Masao Matsumoto, Atsushi Takigawa, Nobuyuki Nakamori, Hitoshi Kanamori

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 被引用数 (Scopus)

抄録

By separating the Wiener spectra of screen mottle of a medical screen/film system for various tube voltages into those of quantum mottle and structure mottle, we experimentally determined the tube voltage dependence of the detective quantum efficiencies (DQEs) of the front of back screens. For the purpose, using the DQE, the equation of the Wiener spectrum of the quantum mottle has been expressed, and using the equation, our method for separating the Wiener spectra of the screen mottle was modified. Both the DQEs of the front and back screens decreased with tube voltage. The DQE of the front screen at each tube voltage was greater than that of the back screen. We explained the tube voltage dependence of the DQEs using the dependence of the first and second moments of absorbed x-ray energy distribution in the screen obtained using our data of incident x-ray spectra for various tube voltages and Swank's noise-equivalent absorption spectra.

本文言語英語
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
出版社Society of Photo-Optical Instrumentation Engineers
ページ12-23
ページ数12
ISBN(印刷版)0819418781, 9780819418784
DOI
出版ステータス出版済み - 1995
外部発表はい
イベントX-Ray and Ultraviolet Sensors and Applications - San Diego, CA, USA
継続期間: 7 13 19957 14 1995

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
2519
ISSN(印刷版)0277-786X

その他

その他X-Ray and Ultraviolet Sensors and Applications
CitySan Diego, CA, USA
Period7/13/957/14/95

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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