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Radiation Protection Dosimetry 85:153-157 (1999)
© 1999 Oxford University Press
IAEA/RCA Personal Dosemeter Intercomparison Results for the KAERI TLD System
IAEA Regional Cooperation of Asia (IAEA/RCA) personal dosemeter intercomparison studies were conducted from 1995 to 1997, in two phases, to upgrade the ability of dosimetry services of Asian countries for photon exposure in terms of the ICRU operational quantities. The Korea Atomic Energy Research Institute (KAERI) took part in these intercomparison studies with Teledyne 9150 and 300 TLD systems. KAERI submitted 30 TL dosemeters including transit control and reserve for irradiation. The TLDs were irradiated with four ISO X ray beams (two of these were mixed fields in the second phase) and two gammas, and three dosemeters were used for each of the six radiation qualities. The results of dosemeter readings were assessed by the ICRU personal dose equivalent, Hp(10) and Hp(0.07). Intercomparison results show that the KAERI satisfactorily estimated the delivered dose equivalent with biases less than 20% except for the low energy X ray mixture (ISO W60, 45 keV + ISO W200, 123 keV) for which the bias was about 25%.
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