Open AccessResponsive alignment for X‐ray tomography beamlines
Author(s) -
José Querino de Vasconcelos Gustavo,
Xavier Miqueles Eduardo,
Schubert Ruiz Costa Gabriel
Publication year - 2018
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577518012201
Subject(s) - tomography , rotation (mathematics) , orientation (vector space) , position (finance) , computer science , optics , sample (material) , computer vision , computed tomography , representation (politics) , physics , medical physics , artificial intelligence , geometry , mathematics , radiology , medicine , finance , economics , thermodynamics , politics , law , political science
X‐ray computed tomography (CT) is an imaging technique intended to obtain the internal structure and three‐dimensional representation of a sample. In general, parallel‐beam CT reconstruction algorithms require a precise angular alignment and knowledge of the exact axis of rotation position. Highly brilliant X‐ray sources with ever‐increasing data‐acquisition rates demand optimized alignment techniques to avoid compromising in situ data analysis. This paper presents a method to automatically align the angular orientation and linear position of the rotation axis in a tomography setup, correlating image features from different X‐ray projections.