title: Single-shot x-ray phase imaging with grating interferometry and photon-counting detectors.
abstract: In this Letter, we present a single-shot approach to quantitatively retrieve x-ray absorption and phase shift in grating interferometry. The proposed approach makes use of the energy-resolving capability of x-ray photon-counting detectors. The retrieval method is derived and presented and is tested based on numerical simulations, including photon shot noise. The good agreement between retrieval results and theoretical values confirms the feasibility of the presented approach.
authors.forename: Zhili
authors.initials: Z
authors.lastname: Wang
authors.forename: Kun
authors.initials: K
authors.lastname: Gao
authors.forename: Dajiang
authors.initials: D
authors.lastname: Wang
authors.forename: Zhao
authors.initials: Z
authors.lastname: Wu
authors.forename: Heng
authors.initials: H
authors.lastname: Chen
authors.forename: Shenghao
authors.initials: S
authors.lastname: Wang
authors.forename: Ziyu
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000535:Aluminum; D007368:Interferometry; D055620:Optical Phenomena; D017785:Photons; D011137:Polystyrenes; D012588:Scintillation Counting / Q000379:methods*; D014965:X-Rays
chemical_list: D011137:Polystyrenes; D000535:Aluminum