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Proceedings Paper

Development of 36M-pixel x-ray detector for large field of view and high-resolution micro-CT
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Paper Abstract

A high-resolution and large field-of-view micro-CT system is indispensable for the visualization of fine threedimensional (3-D) structures of a large specimen. Such a system drastically increases the overall number of effective sensor pixels. At SPring-8 over a decade ago, a micro-CT system based on a 10M-pixel CCD camera was developed for 3-D specimen imaging of centimeter-sized objects with approximately 7 μm spatial resolution. Subsequently, more recent studies have required systems with higher spatial resolution and a wider field-of-view. Detectors with spatial resolution of around 5 μm can visualize capillaries. However, such detectors make it extremely expensive to develop a new x-ray detector with several tens of megapixels in a conventional manner. Fortunately, dizzying advances in image sensor technology for consumer appliances have enabled the development of x-ray detectors with spatial resolution of around 5 μm using a commercial digital single-lens reflex camera fitted with a 36M-pixel CMOS image sensor for the visualization of fine 3-D structures of large human lung specimens. This paper describes a comparison of the performance offered by the new 36M-pixel micro-CT system and the 10M-pixel system.

Paper Details

Date Published: 31 October 2016
PDF: 9 pages
Proc. SPIE 10020, Optoelectronic Imaging and Multimedia Technology IV, 1002005 (31 October 2016); doi: 10.1117/12.2246186
Show Author Affiliations
Keiji Umetani, Japan Synchrotron Radiation Research Institute (Japan)
Yoshiki Kawata, The Univ. of Tokushima (Japan)
Noboru Niki, The Univ. of Tokushima (Japan)

Published in SPIE Proceedings Vol. 10020:
Optoelectronic Imaging and Multimedia Technology IV
Qionghai Dai; Tsutomu Shimura, Editor(s)

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