|Title||Snapshot 2D tomography via coded aperture x-ray scatter imaging.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||KP MacCabe, AD Holmgren, MP Tornai, and DJ Brady|
|Pagination||4582 - 4589|
This paper describes a fan beam coded aperture x-ray scatter imaging system that acquires a tomographic image from each snapshot. This technique exploits the cylindrical symmetry of the scattering cross section to avoid the scanning motion typically required by projection tomography. We use a coded aperture with a harmonic dependence to determine range and a shift code to determine cross range. Here we use a forward-scatter configuration to image 2D objects and use serial exposures to acquire tomographic video of motion within a plane. Our reconstruction algorithm also estimates the angular dependence of the scattered radiance, a step toward materials imaging and identification.
|Short Title||Appl Opt|