한국방사선학회논문지 (Journal of the Korean Society of Radiology)
- 제3권2호
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- Pages.11-16
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- 2009
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- 1976-0620(pISSN)
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- 2384-0633(eISSN)
Screen printing method로 제작된 의료용 광도전체 필름의 Tickness의 따른 X선 검출 특성 평가
The study of X-ray detection characteristic and fabrication photoconductor film thickness for Screen printing method
- 이영규 (인제대학교 의용공학과) ;
- 윤민석 (인제대학교 의용공학과) ;
- 김동혁 (인제대학교 의용공학과) ;
- 천송이 (인제대학교 의용공학과) ;
- 정복동 (인피니트) ;
- 강상식 (한국국제대학교 방사선학과) ;
- 박지군 (한국국제대학교 방사선학과) ;
- 문치웅 (인제대학교 의료영상과학 대학원) ;
- 남상희 (인제대학교 의료영상과학 대학원)
- Lee, Y.K. (Inje Univ. Dept. of image & science) ;
- Yon, M.S. (Inje Univ. Dept. of image & science) ;
- KIM, D.H. (Inje Univ. Dept. of image & science) ;
- Chun, S.L. (Inje Univ. Dept. of image & science) ;
- Jung, B.D. (Infinitt) ;
- Gang, Sang-Sik (International Univ. of korea Dept. of Radiological Science) ;
- Park, J.G. (International Univ. of korea Dept. of Radiological Science) ;
- Mun, C.W. (Inje Univ. Dept. of Biomedical Engineering) ;
- Nam, S.H. (Inje Univ. Dept. of Biomedical Engineering)
- 투고 : 2009.02.08
- 심사 : 2009.06.16
- 발행 : 2009.06.30
초록
Mercury Iodide as good sensitivity at radiation and has an easy peculiarity that operates at low voltage for other photoconductors(a-Se, a-Si, Ge, etc) Based on this characteristic, we studied about an efficiency of the digital x-ray detector in acccordance with the thickness of photoconductor. To solve the problem that is difficult to make a large area film using PVD(Physical Vapor Deposition)method, we used a PIB(Particle In Binder)method. To make a binder paste, we used a PVB(Polyvinylbutyral) as a binder and a DGME(Diethylene Glycol Monobutyl Ether), DGMEA(Diethylene Glycol Monobutyl Ether Acetate) as a solvent. Using this binder paste, we made a polycrystal mercury iodide film that has an each thickness. To evaluate the electrical properties of this films, we measured a darkcurrent, sensitivity and SNR(Signal to Noise Ratio). Mercury iodide film of the 200um thickness has good electrical properties as a result of the measurement. From this result there is a good chance that replace the existing a-Se(Amnorphous seleinum; a-se) with the mercury iodide.