Spectral gratings-based phase-contrast imaging for materials characterization

Andrew J. Gilbert; Adam C. Denny; Aileen N. Sarceno; Richard S. Wittman; Erin A. Miller

doi:10.1117/12.2663669

14 June 2023 Spectral gratings-based phase-contrast imaging for materials characterization

Andrew J. Gilbert, Adam C. Denny, Aileen N. Sarceno, Richard S. Wittman, Erin A. Miller

Proceedings Volume 12531, Anomaly Detection and Imaging with X-Rays (ADIX) VIII; 125310G (2023) https://doi.org/10.1117/12.2663669
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

Spectral X-ray detectors provide a direct observation of the energy spectrum of a transmitted X-ray beam, both for typical and phase-contrast gratings-based systems. The sensitivity of a gratings-based X-ray system to small-angle deflections from a given particle size is dependent on X-ray energy. Therefore, spectral (energy-sensitive) detectors could be sensitive to particle size, even with a broad spectrum from a commercial X-ray generator. Furthermore, these detectors allow direct observation of how the X-ray spectrum is changing as the beam is passing through an object and gratings, and how this affects grating visibilities used to determine the presence of small-angle deflections. This is a particular issue for higher-energy systems where artifacts from beam hardening are common. We present results exploring the particle-size dependent signatures that are available from a spectral gratings-based phase-contrast X-ray imaging system, and the feasibility of observing them with lab-based, broad-spectrum X-ray generators.

Conference Presentation

Citation Download Citation

Andrew J. Gilbert, Adam C. Denny, Aileen N. Sarceno, Richard S. Wittman, and Erin A. Miller "Spectral gratings-based phase-contrast imaging for materials characterization", Proc. SPIE 12531, Anomaly Detection and Imaging with X-Rays (ADIX) VIII, 125310G (14 June 2023); https://doi.org/10.1117/12.2663669

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