Year: 2020
Type: article
Abstract: Plenoptic cameras use arrays of microlenses to capture multiple views of the same scene in a single compound image. They enable refocusing on different planes and depth estimation. However, until now, all types of plenoptic computational imaging processes have been limited to visible light. We demonstrate an x-ray plenoptic microscope that uses a concentrating microcapillary array instead of a microlens array and can simultaneously acquire from one hundred to one thousand x-ray projections of imaged volumes that are located in the focal spot region of the microcapillary array. Hence, tomographic slices at various depths near the focal plane can be reconstructed in a way similar to tomosynthesis but from a single x-ray exposure. The microscope enables the depth-resolved imaging of small subvolumes in large samples and can be used for the imaging of weakly absorbing artificial and biological objects by means of propagation phase-contrast.
Source: Applied Physics Letters
DOI: 10.1063/1.5131494
Authors: Katarzyna M. Sowa, Marcin P. Kujda, Paweł Korecki
Institution: Jagiellonian University
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1583988900, G8048488546
OpenAlex ID: W2998356701