몬테카를로 시뮬레이션을 이용한 X선 변환물질의 특성 연구

Characteristic Study of X-ray convert material by Monte Carlo Simulation

  • 김진영 (인제대학교 의용공학과) ;
  • 박지군 (인제대학교 의용공학과) ;
  • 강상식 (인제대학교 의용공학과) ;
  • 김소영 (인제대학교 의용공학과) ;
  • 정은선 (인제대학교 컴퓨터응용공학부) ;
  • 남상희 (인제대학교 의료영상연구소) ;
  • 강신원 (경북대학교 전기전자공학부)
  • 발행 : 2003.11.13

초록

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.

키워드