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

$BrO_2/a-Se$ 필름의 a-Se에 첨가된 As 변화에 따른 X선 검출특성 비교

The Comparision of X-ray Detection Characteristics as Additive ratio of As in a-Se of $BrO_2/a-Se$ Film

  • 박지군 (인제대학교 의생명공학대학 의용공학과) ;
  • 최장용 (인제대학교 의생명공학대학 의용공학과) ;
  • 김대환 (인제대학교 의생명공학대학 의용공학과) ;
  • 문치웅 (인제대학교 의료 영상 연구소) ;
  • 남상희 (인제대학교 의료 영상 연구소)
  • 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) ;
  • Kim, Dae-Hwan (Department of Biomedical Engineering, College of Biomedical Science and Engineering, Inje University) ;
  • Moon, Chi-Wung (Medical Imageing Research center of Inje University) ;
  • Nam, Sang-Hee (Medical Imageing Research center of Inje University)
  • 발행 : 2002.11.07
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초록

In this papaer, there is a basic research for the development of the Hybrid digital radiation detector with a new system, make up for existing digital radiation detector of direct/indirect method with a weak point. for enhance the efficiency characteristics of signal response from X-ray detector using the a-Se, We make sample with various kinds of layer, through the ratio of As(0.l%,0.3%,0.5%,1%,1.5%,5%,10%). We measure net charge with a leakage current and photo current for electric charateristics. Ratio of As in a-Se consist of 7 stage, It made of using the thermal deposition system, In the made of samples, we made multi layer using the EFIRON optical adhesives from phosphor layer consist of Oxybromide$(BrO_2)$. As a result of X-ray measurement, the best result is ; leakage current(0.30nA/cm2), net charge(610.13pC/cm2/mR) when the condition is voltage(9V/um), 0.3% ratio of As in multi layer(BrO2 + a-Se)

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