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Complete elimination of the beam hardening effect in quantitative absorption tomography using polychromatic x‐rays with single‐component specimens
Author(s) -
Eyou Aileen,
Arhatari Benedicta D,
Tran Chanh Quoc
Publication year - 2020
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.3170
Subject(s) - tomography , optics , hardening (computing) , beam (structure) , materials science , tomographic reconstruction , physics , nanotechnology , layer (electronics)
Absorption tomography has been a unique technique for 3D imaging in many scientific research and applications. However, the use of polychromatic x‐ray sources for quantitative tomography has been limited due to the well‐known beam hardening effect. In this article, we will describe the theoretical details of a new technique for quantitative tomography using polychromatic x‐rays. The technique incorporates the full spectral information of the incident beam into the tomographic reconstruction process. Consequently, beam‐hardening effects are eliminated and the result is quantitative. We will also demonstrate the technique experimentally using a single‐component specimen. This technique promises great opportunities for laboratory‐based x‐ray sources to be used in quantitative applications.