Reference Dosimetry and Calibration of Glass Dosimeters for Cs-137 Gamma-rays

Young Min Moon; Dong Joo Rhee; Jung Ki Kim; Yeong-Rok Kang; Man Woo Lee; Heuijin Lim; Dong Hyeok Jeong

Article

Original Article

Korean Journal of Medical Physics 2013; 24(3): 140-144

Published online September 30, 2013

Reference Dosimetry and Calibration of Glass Dosimeters for Cs-137 Gamma-rays

연구용 세슘-137 조사기에 대한 흡수선량 측정과 유리선량계 교정에 관한 연구

Young Min Moon^†, Dong Joo Rhee^*, Jung Ki Kim^*, Yeong-Rok Kang^*, Man Woo Lee^*, Heuijin Lim^*, Dong Hyeok Jeong^*

문영민^†ㆍ이동주^*ㆍ김정기^*ㆍ강영록^*ㆍ이만우^*ㆍ임희진^*ㆍ정동혁^*

Author Info ⁺

^*Research Center, Dongnam Inst. of Radiological & Medical Sciences, ^†Department of Materials Physics, Dong-A University, Busan, Korea

^*동남권원자력의학원 연구센터, ^†동아대학교 신소재 물리학과

Abstract

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Abstract

In this research, the glass dosimeter was calibrated to measure the standard absorbed dose of the Cs-137 irradiator and absorbed dose in a biological sample. Absorbed dose in water for Cs-137 gamma ray was determined by the IAEA TRS-277 protocol. The PTW-TM30013 ion chamber and the PTW-TM41023 water phantom were utilized for measuring absorbed dose and the value was compared with the reading from DoseAce GD-302M glass dosimeter from Asahi Techno Glass Corporation for its calibration. The uncertainty of measurement (1Փ) of the calibrated glass dosimeter was 2.7% and this result would be applied to improve the accuracy in measurement of absorbed dose in a biological sample.

KeywordsCs-137 irradiator, TRS-277 protocol, Glass dosimeter