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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The Study on Composition ratio of Iodine in Hybrid X-ray Sensor

혼합형 X선 센서에서 a-Se 의 Iodine 첨가비 연구

  • Gong, Hyung-Gi (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Park, Ji-Koon (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Choi, Jang-Yong (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Moon, Chi-Wung (Medical Imaging Research center of Inje University) ;
  • Nam, Sang-Hee (Medical Imaging Research center of Inje University)
  • 공현기 (인제대학교 의생명공학대학 의용공학과) ;
  • 박지군 (인제대학교 의생명공학대학 의용공학과) ;
  • 최장용 (인제대학교 의생명공학대학 의용공학과) ;
  • 문치웅 (인제대학교 의료 영상 연구소) ;
  • 남상희 (인제대학교 의료 영상 연구소)
  • Published : 2002.11.07
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Abstract

At present, the study of direct digital X-ray detector and indirect digital X-ray detector proceed actively. But it needs high thickness and high voltage in selenium for high ionization rate. Therefore, we carried out the study of electric characteristics of a-Se with additive ratio of Iodine in drafting study for developing Hybrid X -ray Sensor for complementing direct digital X -ray detector and indirect digital X-ray detector in this paper. On this, there are formed Amorphous selenium multi-layers by sticking phosphor layer$(Gd_{2}O_{2}S(Eu^{2+}))$ using optical adhesives of EFIRON Co. Amorphous selenium multi-layers having dielectric layer(parylene) has characteristics of low dark-current, high X-ray sensitivity. So we can acquired a enhanced signal to noise ratio. We make Amorphous selenium multi-layers with $30{\mu}m$ thickness on glass.

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