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Analysis of calibration results of radiation survey meters used for area monitoring

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by Adjei, D.; Darko, E. O.; Annkah, J. K.; Amoako, J. K.; Ofori, K.; Emi-Reynolds, G.; Obeng, M. K.; Akomaning-Adofo, E.; Owusu-Manteaw, P. (Radiation Protection Institute, Ghana Atomic EnergyCommission, PO Box LG 80, Accra, Legon (Ghana)) 

Analyses of the results of calibration of survey meters carried out at the Secondary Standards Dosimetry Laboratory (SSDL) in Ghana over a period of 4 y (2008-2011) are reported. The calibration factors (CFs) of the set of survey meters indicated that ∼91.04 % were within the acceptable limit of +20.0 %. A higher percentage of the survey meters indicated CFs in the range of 0.95-1.15 except a few of them which indicated values <0.55. Some of the survey meters also recorded CFs >1.15. The degree of uncertainty in the measurements ranged from 0.03 to 17 % with the majority of them ranging from 0.03 to 6.0 % and a few of them >6.0 %. The results show that most of the survey meters calibrated were within the requirements of the regulations and may provide data for future development of calibration techniques in the country. (authors)

Source/Report: Radiation Protection Dosimetry; v. 156(4); ISSN 0144-8420; Worldcat; 2013; p. 506-513; Available from doi: http://dx.doi.org/10.1093/rpd/nct087; Country of input: France; 16 refs

Publ. Year: 2013

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