Battelle Memorial Institute

Nikhil S Deshmukh

Richard E Jacob

Richard S Wittman

Cynthia L Warner

Erin A Miller

Luke W Campbell

Stanley L Owsley, Jr

Kurt L Silvers

Andy Gilbert

Mital A Zalavadia

Dustin M Kasparek

Systems and methods that directly image attenuation-based object grid, use a source grid to improve imaging of the object grid using a high-energy polychromatic source, and use a detector grid having gratings oriented substantially orthogonally to that of the object grid, can address artifacts and beam hardening effects that limit the quality and discriminatory power of high-energy x-ray imaging that includes phase contrast.

Methods, systems, and computer-readable storage media for enhanced phase-contrast x-ray imaging

Method include emitting x-rays from an x-ray source, directing a first portion of the x-rays through an object grating situated adjacent to an object while the object is scanned relative to the object grating along a scan direction, directing a second portion of the x-rays through the object and subsequently through a detector grating without transmitting through the object grating, wherein the object grating and detector grating are adjacently arranged in a field of view of the x-rays sequentially with respect to each other in the scan direction, and receiving the first portion transmitted through the object and object grating with a first portion of a detector and receiving the second portion transmitted through the object and the detector grating with a second portion of the detector adjacent to the first portion of the detector. Systems are also disclosed, along with related techniques for beam hardening correction.

Serial Moire scanning phase contrast x-ray imaging

Growing community of inventors

Everett, WA, United States of America

Nikhil S Deshmukh