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Contamination of seven workerswith 241Am

Published online by Cambridge University Press:  01 December 2005

I. Malátová ,
V. Becková ,
H. Pospíšilová  and
R. Filgas
I. Malátová
Affiliation:
National Radiation Protection Institute, Šrobárova 48, 100 00 Praha 10, Czech Republic
V. Becková
Affiliation:
National Radiation Protection Institute, Šrobárova 48, 100 00 Praha 10, Czech Republic
H. Pospíšilová
Affiliation:
National Radiation Protection Institute, Šrobárova 48, 100 00 Praha 10, Czech Republic
R. Filgas
Affiliation:
National Radiation Protection Institute, Šrobárova 48, 100 00 Praha 10, Czech Republic
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Abstract

Widespread contamination occurred in the building in which radiation waste was handled. An occurrence of internal contamination of workers was also suspected. Therefore, workers were measured in vivo and bioassay was performed too. Estimation of committed effective dose had to be based on results of excretion analysis as irremovable surface contamination occurred on the skin and hair of workers, thus influencing results of in vivo measurements. The results of bioassay of 7 workers are presented. Intakes and committed effective doses were calculated from excretion data using IMBA Professional Plus software. The best fits for the most of workers were obtained when combination of acute and chronic intakes was used. Acute intakes varied from 135 Bq to 1300 Bq, chronic intakes from 0.03 Bq/d to 0.3 Bq/d. Committed effective doses from 3 to 36 mSv were estimated for individual workers.

Keywords

Am-241Internal contaminationSurface contaminationbioassayintake
Type
Other
Information
Radioprotection , Volume 40 , Issue 4 , October 2005 , pp. 447 - 461
Copyright
© EDP Sciences, 2005

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References

Doerfel H., Andrasi A., Bailey M. et al. (2005) General Guidelines for the Estimation of Committed Effective Dose from Incorporation Monitoring Data (Project IDEAS- EU Contract No. FIKR-CT 2001-00160).
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