A Study of Fundamental Characteristics for $Mg_2SiO_4$ : Tb Phosphor

$Mg_2SiO_4$ : Tb 소자의 기본 특성에 관한 연구

  • Park, Myeong-Hwan (Dept. of Radiotechnology, Taegu Health Junior College) ;
  • Park, Chong-Sam (Dept. of Radiotechnology, Taegu Health Junior College) ;
  • Kwon, Duk-Moon (Dept. of Radiotechnology, Taegu Health Junior College) ;
  • Lee, Joon-Il (Dept. of Radiotechnology, Taegu Health Junior College)
  • 박명환 (대구보건전문대학 방사선과) ;
  • 박종삼 (대구보건전문대학 방사선과) ;
  • 권덕문 (대구보건전문대학 방사선과) ;
  • 이준일 (대구보건전문대학 방사선과)
  • Published : 1996.12.20

Abstract

The thermoluminescence(TL) response in changing annealing condition, triboluminescence, and darkroom temperature for $Mg_2SiO_4$:Tb phosphor are examined. The experimental results are summerized as follows : 1. The uniformity of TL intensity is better In the disinfected $Mg_2SiO_4$ : Tb than in contaminated one. 2. The triboluminescence of $Mg_2SiO_4$ : Tb is almost not detected even if numbers of $Mg_2SiO_4$ : Tb falling are increased. 3. The fading effect of $Mg_2SiO_4$ : Tb is scarcely affected by freezing room. The followings are resulted from the study. The disinfected $Mg_2SiO_4$ : Tb phosphor should be used in the dose measurement and the immediate reading for $Mg_2SiO_4$ : Tb after exposure is better. And if the reading is not immediately taken, a law darkroom temperature for $Mg_2SiO_4$ : Tb storage is recommended.

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