Design optimization of a breast imaging system based on silicon microstrip detectors.
A mammographic imaging set-up using silicon microstrip detectors in edge-on geometry was simulated using the GEANT package. Deposited energy in tissue of various thicknesses was evaluated and shown to agree to within 10% with reference calculations. Optimal energies as well as spectra for mammography with silicon detectors were determined by maximizing the figure of merit of a realistic imaging set-up. The scattered to primary radiation ratio was studied for various detector geometries. It was found that fan-shaped detectors are needed to maintain the image quality for divergent photon beams.
Strest
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Jozef Stefan Institute, Ljubljana, Slovenia. spelas@mail.desy.de
Mali
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Mikuz
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Cindro
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D003198:Computer Simulation; D006801:Humans; D008327:Mammography / Q000295:instrumentation* / Q000379:methods*; D015233:Models, Statistical; D017785:Photons; D012825:Silicon; D012984:Software; D014965:X-Rays
D012825:Silicon