Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2005.07a
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- Pages.390-392
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- 2005
The optical characteristics study of sandwich structure based liquid crystal for the radiation detector application
방사선 검출기 적용을 위한 액정 기반 다층 구조의 광 특성 평가
- Shin, Jung-Wook (College of Biomedical Science and Engineering, Inje University) ;
- Kang, Sang-Sik (Radiation Image Lab, Inje University) ;
- Park, Ji-Koon (Radiation Image Lab, Inje University) ;
- Cho, Sung-Ho (Radiation Image Lab, Inje University) ;
- Cha, Byung-Yul (Radiation Image Lab, Inje University) ;
- Kim, Jin-Young (Radiation Image Lab, Inje University) ;
- Lee, Gun-Hwan (Korean Institude of Machinery & Materials) ;
- Nam, Sang-Hee (Medical image, Medical Imaging Research Center of Inje University)
- 신정욱 (인제대학교 의료영상과학대학원) ;
- 강상식 (인제대학교 방사선 영상 연구실) ;
- 박지군 (인제대학교 방사선 영상 연구실) ;
- 조성호 (인제대학교 방사선 영상 연구실) ;
- 차병열 (인제대학교 방사선 영상 연구실) ;
- 김진영 (인제대학교 방사선 영상 연구실) ;
- 이건환 (한국기계연구원) ;
- 남상희 (인제대학교 의료 영상 연구소)
- Published : 2005.07.07
Abstract
The digital radiation detectors are used clinically by diagnostic apparatus. However the digital radiation detector are some problem like high operating voltage, light blurring, low conversion efficiency, low fill factor, etc. Thus we propose a new radiation detector that the photoconductor layer and liquid crystal layer are coupled in sandwich structure. X-ray absorption in the photoconductor layer controls the state of the liquid crystal via creation of charge carrier and the light modulation of liquid crystal make image formation. The advantage of the new radiation detector is that high resolution image is acquired and the signal amplification is possible by external visible light source. In this study, we study the optical properties and electrical properties of the new radiation detector to irradiate X-ray. The Mercury Iodide(