X-ray dark-field computed tomography using a grating interferometer setup

Nicholas Bevins; Joseph Zambelli; Zhihua Qi; Guang-Hong Chen

doi:10.1117/12.844438

18 March 2010 X-ray dark-field computed tomography using a grating interferometer setup

Nicholas Bevins, Joseph Zambelli, Zhihua Qi, Guang-Hong Chen

Proceedings Volume 7622, Medical Imaging 2010: Physics of Medical Imaging; 76220P (2010) https://doi.org/10.1117/12.844438
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

Dark-field x-ray projection imaging and dark-field neutron computed tomography have both recently been demonstrated. Such techniques provide insight into the small-angle scattering properties of the image objects. In this work, the dark-field x-ray imaging method is extended to x-ray computed tomography in order to provide unique and complementary information to the previously reported phase contrast and absorption contrast CT images. Dark-field reconstructions are presented and compared to these two other contrast mechanisms, all three of which can be obtained from a single acquisition using an x-ray grating interferometer setup. Objects which provide little absorption contrast, but have a significant small-angle scattering component, are better visualized in a dark-field CT reconstruction.

Citation Download Citation

Nicholas Bevins, Joseph Zambelli, Zhihua Qi, and Guang-Hong Chen "X-ray dark-field computed tomography using a grating interferometer setup", Proc. SPIE 7622, Medical Imaging 2010: Physics of Medical Imaging, 76220P (18 March 2010); https://doi.org/10.1117/12.844438

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