Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
권호 표지

Effects of Scintillation Crystal Surface Treatments on Gamma Camera Imaging

섬광체 옆표면처리가 감마카메라 영상에 미치는 효과

  • Kim, J.H. (Department of Nuclear Medicine, Samsung Medical Center) ;
  • Choi, Y. (Department of Nuclear Medicine, Samsung Medical Center) ;
  • Oh, C.H. (Department of Physics, Hanyang University) ;
  • Kim, J.Y. (Department of Nuclear Medicine, Samsung Medical Center) ;
  • Lee, M.Y. (Department of Physics, Hanyang University) ;
  • Kim, S.E. (Department of Nuclear Medicine, Samsung Medical Center) ;
  • Choe, Y.S. (Department of Nuclear Medicine, Samsung Medical Center) ;
  • Joo, K.S. (Department of Physics, Myongji University) ;
  • Kim, B.T. (Department of Nuclear Medicine, Samsung Medical Center)
  • Published : 1998.11.20
Download PDF
⟨ Previous Next ⟩

Abstract

We investigated the effects of scintillation crystal surface treatment on gamma camera imaging. The NaI(Tl) and CsI(Tl) (20 mm (dia.) $\times10mm$ (thick) plate) scintillators were chosen for this study. Two different surface treatments, white and black reflectors, were applied to NaI(Tl) and CsI(Tl). The optical properties of generated scintillation light were evaluated using Monte Carlo simulation and postion sensitive photo multiplier tube (PSPMT). We measured sensitivity, energy resolution and spatial resolution of a gamma camera system with the scintillators coupled to a PSPMT. Based on the results, we concluded that the careful consideration of surface treatments of the scintillator was necessary in order to develop the gamma camera having good sensitivity and spatial resolution.

Keywords