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Development of Thermoluminescence and Optical Stimulated Luminescence Measurements System

열자극발광 및 광자극발광 측정장치의 개발

  • Park, Chang-Young (Department of Physics and Research Institute of Natural Science, Gyeongsang National University) ;
  • Chung, Ki-Soo (Department of Physics and Research Institute of Natural Science, Gyeongsang National University) ;
  • Lee, Jong-Duk (College of Interdisciplinary & Creative Studies, Konyang University) ;
  • Chang, In-Su (Korea Atomic Energy Research Institute) ;
  • Lee, Jungil (Korea Atomic Energy Research Institute) ;
  • Kim, Jang-Lyul (Korea Atomic Energy Research Institute)
  • 박창영 (경상대학교 물리학과 및 기초과학연구소) ;
  • 정기수 (경상대학교 물리학과 및 기초과학연구소) ;
  • 이종덕 (건양대학교 창의융합대학) ;
  • 장인수 (한국원자력연구원) ;
  • 이정일 (한국원자력연구원) ;
  • 김장렬 (한국원자력연구원)
  • Received : 2015.01.05
  • Accepted : 2015.02.09
  • Published : 2015.03.31

Abstract

The thermoluminescence (TL) and optically stimulated luminescence (OSL) are commonly used to measure and record the expose of individuals to ionization radiation. Design and performance test results of a newly developed TL and OSL measurement system are presented in this paper. For this purpose, the temperature of the TL material can be controlled precisely in the range of $1{\sim}1.5^{\circ}C$ by using high-frequency (35 kHz) heating system. This high-frequency power supply was made of transformer with ferrite core. For optical stimulation, we have completed an optimal combination of the filters with the arrangement of GG420 filter for filtering the stimulating light source and a UG11 filter at the detecting window (PMT). By using a high luminance blue LED (Luxeon V), sufficient luminous intensity could be obtained for optical stimulation. By using various control boards, the TL/OSL reader device was successfully interfaced with a personal computer. A software based on LabView program (National Instruments, Inc.) was also developed to control the TL/OSL reader system. In this study, a multi-functional TL/OSL dosimeter was developed and the performance testing of the system was carried out to confirm its reliability and reproducibility.

Acknowledgement

Supported by : 한국연구재단

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