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Theses

Compréhension et modélisation des émissions environnementales d'aérosols radioactifs liées à l'utilisation d'un générateur de technétium en service de médecine nucléaire

Abstract : This work deals with the control of radioactive aerosols emissions inside the nuclear medicine facilities. These emissions occur during pulmonary scintigraphy examinations using aerosols marked with 99mTc. Using a test chamber, we have developed a method permitting to quantify these emissions around the aerosol generator. A method dedicated to emissions measurement coming from the patient during the pulmonary ventilation is also described. The results obtained on one patient are exposed in this thesis. We characterized and modelled the ventilation of a complete nuclear medicine department with a CFD (Computational Fluid Dynamics) software. This permitted us to study the dissemination of the radioactive aerosol and to compare it with measures of ambient air activity. The numerical model of this department was then employed to test containment solutions and to help defining the best location for air contaminations sensors. An original method combining staff position information and the simulation of the dissemination for the aerosol released has been used to confirm the exposure levels for several professional groups and enhance the workplace studies.
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https://tel.archives-ouvertes.fr/tel-00799380
Contributor : Pierre Bombardier <>
Submitted on : Tuesday, March 12, 2013 - 10:56:47 AM
Last modification on : Friday, April 10, 2020 - 5:10:54 PM

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  • HAL Id : tel-00799380, version 1

Citation

Pierre Bombardier. Compréhension et modélisation des émissions environnementales d'aérosols radioactifs liées à l'utilisation d'un générateur de technétium en service de médecine nucléaire. Ingénierie de l'environnement. Université Paris-Diderot - Paris VII, 2012. Français. ⟨tel-00799380⟩

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