Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2003.11a
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- Pages.418-421
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- 2003
Characteristic Study of X-ray convert material by Monte Carlo Simulation
몬테카를로 시뮬레이션을 이용한 X선 변환물질의 특성 연구
- Kim, Jin-Young (Dept. of Biomedical Engineering, Inje Univ) ;
- Park, Ji-Koon (Dept. of Biomedical Engineering, Inje Univ) ;
- Kang, Sang-Sik (Dept. of Biomedical Engineering, Inje Univ) ;
- Kim, So-Young (Dept. of Biomedical Engineering, Inje Univ) ;
- Jung, Eun-Sun (School of Computer Aided Science, Inje Univ) ;
- Nam, Sang-Hee (Medical Imaging Research Center of Inje Unive) ;
- Kang, Sin-Won (School of Electronic & Electrical engineering, Kyoungpook National Univ)
- 김진영 (인제대학교 의용공학과) ;
- 박지군 (인제대학교 의용공학과) ;
- 강상식 (인제대학교 의용공학과) ;
- 김소영 (인제대학교 의용공학과) ;
- 정은선 (인제대학교 컴퓨터응용공학부) ;
- 남상희 (인제대학교 의료영상연구소) ;
- 강신원 (경북대학교 전기전자공학부)
- Published : 2003.11.13
Abstract
Today, much terminologies such as noise spectrum, Sharpness, contrast, MTF had been defined for Image quality revaluation of radiation Image. Since development of Xeroradiography In the 1970s, Digital radiation detector that use amorphous selenium was developed. The aim of this research is to analyze physical phenomenon of digital radiation detector that use amorphous selenium. Result of Monte Carlo simulations on amorphous selenium based on physical properties(creation of electron-hole pairs) by induced x-ray are described. From the simulation, intrinsic point spread function(PSF) was found and used to observe modulation transfer function(MTF). We investigated how PSF and MTF changed with various x-ray energy. This result can be used to design digital x-ray detector based on a-Se.
Keywords
- modulation transfer function(MTF);
- point spread function(PSF);
- amorphous selenium;
- Monte Carlo simulation