한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

Synchrotron Radiation을 이용한 CMOS sensor image 획득평가

Evaluation of image acquisition using synchrotron radiation in CMOS sensor.

  • 김대환 (인제대학교 의생명공학대학 의용공학과) ;
  • 박지군 (인제대학교 의생명공학대학 의용공학과) ;
  • 최장용 (인제대학교 의생명공학대학 의용공학과) ;
  • 장기원 (인제대학교 의생명공학대학 의용공학과) ;
  • 윤경준 (인제대학교 의생명공학대학 의용공학과) ;
  • 문치웅 (인제대학교 의료 영상 연구소) ;
  • 남상희 (인제대학교 의료 영상 연구소)
  • Kim, D.H. (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Park, J.K. (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Choi, J.Y. (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Chang, G.W. (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Youn, G.J. (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Moon, C.W. (Medical Imageing Research center of Inje University) ;
  • Nam, S.H. (Medical Imageing Research center of Inje University)
  • 발행 : 2003.11.13
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초록

In this paper, the purpose is to develop imaging technique of synchrotron radiation using CMOS image sensor. The detector using hybrid method to be research in this lab was used, in order to increase image signal. We made experiments with 1B2 Whitebeam/microprobe beamline in PAL (Pohang Accelerator Laboratory). Phosphor materials such as ZnS:(Ag,Li), ZnS:(Cu,Al), $Y_2O_2S:Eu$ were produced by spin coating on glass. Synchrotron radiation images were acquired and evaluated from monochromatic light from monochromoator in PAL 1B2line. From obtained object and phantom, MTF was 0.15 in ZnS:(Ag,Li) phosphor, and 0.178 in ZnS:( Cu,Al) at 151p/mm. MTFs were unsystematic because thickness of phosphor and uniformity of surface were not optimized. It's expected to improve MTF and the qualify of images as uniformity's optimized.

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