Lung counter and body shape: creation of female computational phantoms for efficiency calibration

Pasquale Lombardo; Anne Laure Lebacq

Lung counter and body shape: creation of female computational phantoms for efficiency calibration

Pasquale Lombardo, Anne Laure Lebacq

Dosimetric and Calibration Services

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Abstract

This work used Mesh and NURBS 3D flexible formats to optimize the monitoring of female workers subject to internal contamination risks. Counting efficiency curves were calculated for a library of female phantoms adapted to the SCK.CEN lung counter configuration, equipped with a set of two germanium detectors used for in vivo measurements. Breast size influence over the counting efficiency was studied for the energy of 59.6 keV, peak of emission of Am-241. Detectors counting efficiency was found to decrease with breast size and chest girth for this low energy radionuclide. Detection limits are highly dependent on breast size, and the breasts morphology has proven to be another important factor in low energy counting efficiency.

Original language	English
Awarding Institution	POLIMI - Politecnico di Milano
Supervisors/Advisors	Lebacq, Anne Laure, Supervisor
Place of Publication	Milan, Italy
Publisher	Politecnico di Milano
State	Published - 18 Dec 2013

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Cite this

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title = "Lung counter and body shape: creation of female computational phantoms for efficiency calibration",

abstract = "This work used Mesh and NURBS 3D flexible formats to optimize the monitoring of female workers subject to internal contamination risks. Counting efficiency curves were calculated for a library of female phantoms adapted to the SCK.CEN lung counter configuration, equipped with a set of two germanium detectors used for in vivo measurements. Breast size influence over the counting efficiency was studied for the energy of 59.6 keV, peak of emission of Am-241. Detectors counting efficiency was found to decrease with breast size and chest girth for this low energy radionuclide. Detection limits are highly dependent on breast size, and the breasts morphology has proven to be another important factor in low energy counting efficiency.",

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Y1 - 2013/12/18

N2 - This work used Mesh and NURBS 3D flexible formats to optimize the monitoring of female workers subject to internal contamination risks. Counting efficiency curves were calculated for a library of female phantoms adapted to the SCK.CEN lung counter configuration, equipped with a set of two germanium detectors used for in vivo measurements. Breast size influence over the counting efficiency was studied for the energy of 59.6 keV, peak of emission of Am-241. Detectors counting efficiency was found to decrease with breast size and chest girth for this low energy radionuclide. Detection limits are highly dependent on breast size, and the breasts morphology has proven to be another important factor in low energy counting efficiency.

AB - This work used Mesh and NURBS 3D flexible formats to optimize the monitoring of female workers subject to internal contamination risks. Counting efficiency curves were calculated for a library of female phantoms adapted to the SCK.CEN lung counter configuration, equipped with a set of two germanium detectors used for in vivo measurements. Breast size influence over the counting efficiency was studied for the energy of 59.6 keV, peak of emission of Am-241. Detectors counting efficiency was found to decrease with breast size and chest girth for this low energy radionuclide. Detection limits are highly dependent on breast size, and the breasts morphology has proven to be another important factor in low energy counting efficiency.

KW - MCNP

KW - internal dosimetry

KW - lung counting

KW - low-energy gamma

KW - breast

KW - computational phantoms

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_135188

M3 - Master's thesis

PB - Politecnico di Milano

CY - Milan, Italy

ER -