Characterization of pre- and postpatient x-ray polycapillary optics for mammographic imaging

Francisca R. Sugiro; Sushil D. Padiyar; Carolyn A. MacDonald

doi:10.1117/12.405894

2 November 2000 Characterization of pre- and postpatient x-ray polycapillary optics for mammographic imaging

Francisca R. Sugiro, Sushil D. Padiyar, Carolyn A. MacDonald

Proceedings Volume 4144, Advances in Laboratory-based X-Ray Sources and Optics; (2000) https://doi.org/10.1117/12.405894
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Polycapillary x-ray optics can be used as pre- or post-patient optics to design mammographic imaging systems with higher resolution, greater contrast, and a lower absorbed patient dose. A multi-fiber collimating prototype optic, used as pre-patient beam shaper, provides 39% transmission efficiency at 17.5 keV, good uniformity, and only 3.9 mrad divergence. Experimental optics characterization results are compared with detailed computer simulations including analysis of optical defects such as channel waviness and bending. The collimating optic was used to produce monochromatic radiation by diffracting from a silicon crystal. The monochromatic contrast, measured at 8 keV with a polypropylene phantom, was 5 times greater than the measured polychromatic contrast.

Citation Download Citation

Francisca R. Sugiro, Sushil D. Padiyar, and Carolyn A. MacDonald "Characterization of pre- and postpatient x-ray polycapillary optics for mammographic imaging", Proc. SPIE 4144, Advances in Laboratory-based X-Ray Sources and Optics, (2 November 2000); https://doi.org/10.1117/12.405894

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