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Proceedings Paper

A new design for a micro-CT scanner
Author(s): Matthias Klaften; Alexander Schegerer; Oleg Tischenko; Yuan Xu; Thomas Förster; Martin Hrabé de Angelis; Christoph Hoeschen
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Paper Abstract

A new type of X-ray CT scanning geometry is proposed. The geometry of the scanner includes a half ring detector array and resembles the geometry of a scanner of the fourth generation. Unlike the latter, the proposed system collects parallel projections allowing efficient collimation of the incident beam for the purpose of scatter reduction. The geometry of the data collected with the proposed scanner is ideal for algorithms developed for image reconstruction from parallel projections with a non-uniform sampling such as the Orthogonal Polynomial Expansion on Disk (OPED) algorithm. This scanner can be efficiently used in applications where high precision measurements at micrometer scales are required, e.g. in the exact quantification of the morphology of small animals.

Paper Details

Date Published: 13 March 2009
PDF: 8 pages
Proc. SPIE 7258, Medical Imaging 2009: Physics of Medical Imaging, 72585D (13 March 2009); doi: 10.1117/12.813790
Show Author Affiliations
Matthias Klaften, Helmholtz Zentrum München (Germany)
Alexander Schegerer, Helmholtz Zentrum München (Germany)
Oleg Tischenko, Helmholtz Zentrum München (Germany)
Yuan Xu, Univ. of Oregon (United States)
Thomas Förster, Helmholtz Zentrum München (Germany)
Martin Hrabé de Angelis, Helmholtz Zentrum München (Germany)
Christoph Hoeschen, Helmholtz Zentrum München (Germany)


Published in SPIE Proceedings Vol. 7258:
Medical Imaging 2009: Physics of Medical Imaging
Ehsan Samei; Jiang Hsieh, Editor(s)

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