Seperate Driving System For Large Area X-ray Detector In Radiology

대면적 X-ray 검출기를 위한 분할 구동 시스템

  • 이동길 (인제대학교 의생명공학대학 의용공학과) ;
  • 박지군 (인제대학교 의생명공학대학 의용공학과) ;
  • 김대환 (인제대학교 의생명공학대학 의용공학과) ;
  • 남상희 (인제대학교 의료영상연구소) ;
  • 안상호 (인제대학교 의료영상연구소) ;
  • 박효덕 (전자부품연구원)
  • Published : 2003.11.13

Abstract

The properties of these detectors can be controlled by electronics and exposure conditions. Flat-panel detectors for digital diagnostic imaging convert incident x-ray images to charge images. Flat panel detectors gain more interest real time medical x-ray imaging. Active area of flat panel detector is $14{\times}17$ inch. Detector is based on a $2560{\times}3072$ away of photoconductor and TFT pixels. X-ray conversion layer is deposited upper TFT array flat panel with a 500m by thermal deposition technology. Thickness uniformity of this layer is made of thickness control technology(5%) of thermal deposition system. Each $139m{\times}139m$ pixel is made of thin film transistor technology, a storage capacitor and charge collection electrode having geometrical fill factor of 86%. Using the separate driving system of two dimensional mosaic modules for large area, that is able to 4.2 second per frame. Imaging performance is suited for digital radiography imaging substitute by conventional radiography film system..

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