Scatter Rejection in SR Scanning Slit Radiography with II-TV System

この論文にアクセスする

この論文をさがす

著者

    • FUJISAKI Tatsuya
    • Department of Radiological Sciences, Ibaraki Prefectural University of Health Sciences
    • NISHIMURA Katsuyuki
    • Department of Radiological Sciences, Ibaraki Prefectural University of Health Sciences
    • URAHASHI Shingo
    • Department of Medical & Welfare's Engineering, College of Science & Technology, Nihon University
    • UEDA Shintaro
    • Department of Medical & Welfare's Engineering, College of Science & Technology, Nihon University

抄録

A synchrotron radiation scanning slit radiography sy stem was designed and developed for the purposes of reducing scattering effect, enabling high speed image acquisition and obtaining high quality image. In this system, one dimensional synchrotron radiation beam and one dimensional active area on two dimensional detector should be scanned electronically.<BR>In this paper, performance parameters for scatter rejectio n and results of synchrotron radiation scanning slit radiograph obtained from EGS4 simulation are discussed, and compared with experiments in which radiograph images were taken for bone phantom with one dimensional synchrotron radiation beam in which a monochromator was rotated stepwise. The window function was applied on the images in place of electronic scanning of the active area on the detector. The effect of the window function on the elimination of scattered radiation was studied by changing width of the function. In order to study the relation of performance parameters to slit width, two dimensional dose distributions on the detector surface were calculated using the EGS4 Monte Carlo simulation method.<BR>Scatter re jection and the contrast in this system were found to be improved by applying a suitable window function.

収録刊行物

  • 放射線医学物理

    放射線医学物理 17(3), 161-172, 1997-09

    Japan Society of Medical Physics

参考文献:  22件中 1-22件 を表示

各種コード

  • NII論文ID(NAID)
    10003724057
  • NII書誌ID(NCID)
    AA11137895
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09188010
  • データ提供元
    CJP書誌  J-STAGE 
ページトップへ