Bottigli, U. and Golosio, B. and Masala, G. L. and Oliva, P. and Stumbo, S. and Bravin, A. and Bacci, A. and Serafini, L. and Maroli, C. and Petrillo, V. and Ferrario, M. and Vaccarezza, C. (2006) Effect of different spectral distributions to image a contrast detail phantom in the mammography energy range. Il nuovo cimento C, 29 (2). pp. 215-228. ISSN 1826-9885
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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-monochromatic, 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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Mammography |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 18 Mar 2020 16:36 |
| Last Modified: | 18 Mar 2020 16:36 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/16065 |
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