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Updated: Nov 17, 2025

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Effective atomic number image determination with an energy-resolving photon-counting detector using polychromatic
Natsumi Kimoto1, Hiroaki Hayashi1, Takumi Asakawa1
1Graduate School of Medical Sciences, Kanazawa University, Ishikawa, 920-0942, Japan.
Abstract:
In this study, we propose an effective atomic number (Zeff) determination method based on a photon-counting technique. The proposed method can correct for the beam hardening effect and detector response based on polychromatic X-rays to allow high accuracy material identification. To demonstrate the effectiveness of our method, the procedure was applied to X-ray images acquired by a prototype energy-resolving photon-counting detector and we obtained an Zeff image with accuracy of Zeff ± 0.5 regardless of the mass thickness.
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