Indirect monitoring of internal exposure for actinides
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2006
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PRIMER CONGRESO AMERICANO DEL IRPA 2006; REUNION ANUAL DE LA SMSR, 24. Y CONGRESO ANUAL DE LA SNM, 17.
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Resumo
The procedure used to the assessment of internal exposure of workers involved with
dismantling ligthning rods and radioactive smoke detectors is described. Due to the
presence of the sources of 241Am in these devices, a monitoring program to the workers
have been implemented. This paper presents an analytical method for the separation
and analysis of plutonium (Pu) and americium (Am) in urine samples using solid-phase
extraction chromatography and alpha spectrometry. The mean recovery obtained with
this technique is about 80% and the detection limit for 24h urine sample range between
0.6 mBqL-1 and 1.0 mBqL-1. The assessment of intakes and internal doses are
performed following ICRP Publication 78 recommendations and appropriated biokinetic
models (ICRP, 1997). Assumptions have been made for routine monitoring of these
workers and it is also discussed the establishment of the an internal monitoring program
using the results of alpha measurements.
Como referenciar
CARNEIRO, JANETE C.G.; BARRETO, JULIANA F.; TODO, ALBERTO S. Indirect monitoring of internal exposure for actinides. In: PRIMER CONGRESO AMERICANO DEL IRPA 2006; REUNION ANUAL DE LA SMSR, 24. Y CONGRESO ANUAL DE LA SNM, 17., September 3-8, 2006, Acapulco, Mexico. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/20371. Acesso em: 30 Dec 2025.
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