A new sampler for simulating aerosol deposition in the respiratory tract

ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION

A new sampler for simulating aerosol deposition in the respiratory tract

LI Dehong，

ZHUO Weihai，

YI Yanling，

CHEN Bo，

LIU Haikuan

Nuclear Science and Techniques

Vol.19, No.3

pp.169-173

Published in print 20 Jun 2008

DOI：10.1016/S1001-8042(08)60045-7

CLC：X837,X125

30000

For estimation of the deposition fractions of radon progeny in different regions of the respiratory tract, a new sampler consisting of three different configurations of sampling heads was developed. The deposition fractions of aerosols on the wire screens inside the sampling heads were calculated with the fan model of filtration theory. The deposition fractions of aerosols in different regions of the respiratory tract were calculated with the lung dose evaluation program (LUDEP^©) developed by National Radiological Protection Board (NRPB) as references. In general indoor and mine environments, the deviation between the deposition fractions of attached aerosol on the wire screens designed in this study and its reference values in the respiratory tract is less than 5%. It is possible to accurately estimate the deposition fractions of radon progeny in different regions of the respiratory tract through mimic measurements of radon progeny collected with the new sampler.

AerosolRadon progenyHuman respiratory tractWire screens

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