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Effect of different spectral distributions to image a contrast detail phantom in the mammography energy range

Effect of different spectral distributions to image a contrast detail phantom in the mammography energy range

Authors :
Bottigli, U
Golosio, B
Masala, G
Oliva, P
Stumbo, S
Bravin, A
Bacci, A
Serafini, L
Maroli, C
Petrillo, V
Ferrario, M
Vaccarezza, C
Bottigli U
Golosio B
Masala GL
Oliva P
Stumbo S
Bravin A
Bacci A
Serafini L
Maroli C
Petrillo V
Ferrario M
Vaccarezza C
Bottigli, U
Golosio, B
Masala, G
Oliva, P
Stumbo, S
Bravin, A
Bacci, A
Serafini, L
Maroli, C
Petrillo, V
Ferrario, M
Vaccarezza, C
Bottigli U
Golosio B
Masala GL
Oliva P
Stumbo S
Bravin A
Bacci A
Serafini L
Maroli C
Petrillo V
Ferrario M
Vaccarezza C
Publication Year :
2006

Abstract

Traditionally X-ray sources used in mammography are X-ray tubes. Synchrotron radiation sources have shown better imaging performances, but they cannot replace conventional X-ray tube systems in routine mammographic examinations. A new generation of quasi-mono chromatic, high-flux X-ray sources is currently under development, based on Thomson backscattering of photons produced by a laser on a highly focused electron beam. They offer important potential applications in the medical field. In this work, we will discuss an application in the field of mammography, by using a Monte Carlo code, in which the effect of different spectral distributions and different mean energies on the image quality is studied. A test object, consisting of a block of Polymethyl Methacrylate (PMMA) containing air-filled holes (Contrast Detail Phantom) is used for the simulations. Results show 1-2 keV of energy spread for a quasi-monochromatic source produce images whose quality is comparable within 3-4% with those obtained by monochromatic sources and whose visibility is dramatically enhanced with respect to images obtained with X-ray tubes.

Details

Database :
OAIster
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1308941250
Document Type :
Electronic Resource