An improved method of nasal swab analysis for assessing alpha internal radioactive contaminants
In this study, to improve the quality of
nasal swab measurements, a specialised double-detector alpha counter was designed. Various
parameters including swab materials, sample pre-preparation, angle-dependence and vacuum dependence
were investigated to optimise the reliability and convenience of the nasal swab method. An improved
procedure of direct nasal swab measurement was eventually established, which could be used to obtain
early data for initial dose assessment during the first response of nuclear and radiological
emergencies.
Source: Journal of Radiological Protection - Category: Physics Authors: Ji Yunlong, Li Dawei, Qu Decheng and Ning Jing Source Type: research