Optimization of filtration for the reduction of lung dose from Rn decay products: Part II--Experimental.
Health Phys
; 59(3): 277-85, 1990 Sep.
Article
em En
| MEDLINE
| ID: mdl-2168349
ABSTRACT
Research was performed to determine the validity of a model developed to theoretically predict the optimal characteristics of a recirculating filter system for minimizing the lung dose to a person breathing airborne Rn progeny. Four designs, each with different filter thicknesses, solidities, and fiber diameters, were tested to evaluate the accuracy of the model over a range of parameters. Increasing thicknesses were then tested for the most effective filter design to provide a more definitive comparison of experimental data and model predictions for this key parameter. The experimental data supported the conclusion that the most effective design was a thin filter of low solidity composed of coarse fibers. Although the maximum reduction in the dose-equivalent rate observed in these experiments was 50%, this was largely due to constraints on the experimental arrangements. With properly constructed filter units, much better removal efficiencies can undoubtedly be achieved.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Lesões por Radiação
/
Bismuto
/
Polônio
/
Filtração
/
Habitação
/
Chumbo
/
Pulmão
Tipo de estudo:
Prognostic_studies
Aspecto:
Determinantes_sociais_saude
Limite:
Humans
Idioma:
En
Revista:
Health Phys
Ano de publicação:
1990
Tipo de documento:
Article