4-6 February 2019
Centara Grand at Central Ladprao
Asia/Bangkok timezone
Deadline for full paper revision: 21 May 2019.

The Comparison of Air Kerma for Cs-137 and Co-60 Radiation Protection Calibrations in East Asia and Southeast Asia Region

5 Feb 2019, 14:40
1h 10m
Centara Grand at Central Ladprao

Centara Grand at Central Ladprao

Chatuchak, Bangkok 10900, Thailand
Poster Safety Poster 2

Speaker

Dr Vithit Pungkun (Office of Atoms for Peace)

Description

The intercomparison programme for the national standard dosimetry laboratory should be initiated to support the activities for assuring the quality of measurement and to harmonize the standards for ionizing radiation metrology among the Asia-Pacific region. The accurate dose measurement, especially in developing countries, requires the adequate calibration facilities and quality assurance programme such as intercomparison programme to maintain their standards. The main objective of this research is to improve the quality audit system for supporting ISO/IEC 17025 accreditation system for Standard dosimetry laboratories in East Asia and Southeast Asia by the comparison programme of Air Kerma of Cs-137 and Co-60 using Optically Stimulated Luminesence Dosimeter (OSLD). There were three Primary Standard Dosimetery Laboratories and eight Secondary Standard Dosimetry Laboratories participated in the comparison. The requested irradiation dose for radiation protection level using Cs-137 and Co-60 were 5.00 mGy and 2.00 mGy respectively at 0 degree angle of incidence in term of Air Kerma. The results show a good agreement between the standard dosimetry laboratories in Asia-Pacific region within ±2 standard deviation above the mean using z-score test. For Cs-137 intercomparison, the maximum and minimum z-score were +1.80 and -1.15 respectively. For Co-60 intercomparison, the maximum and minimum z-score were +0.90 and -0.96 respectively.

Primary author

Dr Vithit Pungkun (Office of Atoms for Peace)

Co-authors

Mr Pongphanot Ridhatayathon (Office of Atoms for Peace) Ms Waraporn Sudchai (Thailand Institute of Nuclear Technology) Ms Natthaporn Kamwang (Thailand Institute of Nuclear Technology) Mr Thiti Rungseesumran (Thailand Institute of Nuclear Technology ) Mr Sakchai Buppaungkul (epartment of Medical Sciences, Ministry of Public Health) Dr Wu Jinjie (National Institute of Metrology) Dr Tadahiro Kurosawa (National Metrology Institute of Japan) Dr Chul Young Yi (Korea Research Institute of Standards and Science) Mr Fendinugroho . (National Nuclear Energy Agency of Indonesia (PTKMR-BATAN)) Mr Gatot Wurdiyanto (National Nuclear Energy Agency of Indonesia (PTKMR-BATAN)) Mr Mohd Taufik Bin Dolah (Malaysian Nuclear Agency) Mr Ahmad Bazlie Bin Abdul Kadir (Malaysian Nuclear Agency) Ms Kristine Marie Romallosa (Philippine Nuclear Research Institute) Mr Ronald Piquero (Philippine Nuclear Research Institute) Mr Le Ngoc Thiem (Institute for Nuclear Science and Technology) Mr Bui Ducky (Institute for Nuclear Science and Technology)

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