Performance and applications of GaAs:Cr-based Medipix detector in X-ray CT
- 1 January 2017
- journal article
- Published by IOP Publishing in Journal of Instrumentation
- Vol. 12 (01), C01005
- https://doi.org/10.1088/1748-0221/12/01/c01005
Abstract
In the recent years, the method of single photon counting X-ray μ-CT is being actively developed and applied in various fields. Results of our studies carried out using the MARS μ-CT scanner equipped with GaAs Medipix-based camera are presented. The procedure of mechanical alignment of the scanner is described, including direct and indirect measurements of the spatial resolution. The software chain for data processing and reconstruction has been developed and reported. We demonstrate the possibility to apply the scanner for research in geology and medicine and provide demo images of geological samples (chrome spinellids, titanium magnetite ore) and medical samples (atherosclerotic plaque, abdominal aortic aneurysm). The first results of multi-energy scans using GaAs:Cr-based camera are shown.Keywords
This publication has 8 references indexed in Scilit:
- Alignment and resolution studies of a MARS CT scannerPhysics of Particles and Nuclei Letters, 2015
- Calcification as a Risk Factor for Rupture of Abdominal Aortic AneurysmEuropean Journal of Vascular and Endovascular Surgery, 2013
- High-resolution X-ray computed tomography in geosciences: A review of the current technology and applicationsEarth-Science Reviews, 2013
- Dual- and multi-energy CT: approach to functional imagingInsights into Imaging, 2011
- Pore-network extraction from micro-computerized-tomography imagesPhysical Review E, 2009
- Bar and Point Test Patterns Generated by Dry-Etching for Measurement of High Spatial Resolution in Micro-CTIFMBE Proceedings (IFMBE), 2009
- Timepix, a 65k programmable pixel readout chip for arrival time, energy and/or photon counting measurementsNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2007
- GaAs resistor structures for X-ray imaging detectorsNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2002