Dichromatic source for the application of dual-energy tissue cancellation in mammography

Alessandra Tuffanelli; S. Fabbri; Michele Marziani; Angelo Taibi; A. Sarnelli; Mauro Gambaccini

doi:10.1117/12.465559

3 May 2002 Dichromatic source for the application of dual-energy tissue cancellation in mammography

Alessandra Tuffanelli, S. Fabbri, Michele Marziani, Angelo Taibi, A. Sarnelli, Mauro Gambaccini

Proceedings Volume 4682, Medical Imaging 2002: Physics of Medical Imaging; (2002) https://doi.org/10.1117/12.465559
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

A novel x-ray source, providing dichromatic beams for the application of dual-energy radiography, has been assembled and studied. The system works via Bragg diffraction, by monochromatizing the beam produced by a conventional W-anode x-ray tube with a mosaic crystal monochromator. The source generates a laminar beam (10 cm-high and 0.8 cm-wide), composed by two spatially superimposed quasi-monochromatic beams. The characteristics of the radiation field in terms of energy resolution and fluence have been reported, for three pairs of energies. A study of the spectra attenuated by several phantoms of breast equivalent tissue of different thicknesses shows that the optimal energy of the dichromatic beam for dual energy mammography application ranges between 18/36 keV and 18.6/37.2 keV and may be set as a function of the thickness or density of investigated tissue.

Citation Download Citation

Alessandra Tuffanelli, S. Fabbri, Michele Marziani, Angelo Taibi, A. Sarnelli, and Mauro Gambaccini "Dichromatic source for the application of dual-energy tissue cancellation in mammography", Proc. SPIE 4682, Medical Imaging 2002: Physics of Medical Imaging, (3 May 2002); https://doi.org/10.1117/12.465559

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available