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arXiv · 1501.06825

Sub-pixel resolution with color X-ray camera SLcam(R)

Stanisław H. Nowak·Aniouar Bjeoumikhov·Johannes von Borany·Josef Buchriegler·Frans Munnik·Marko Petric·Martin Radtke·Axel D. Renno·Uwe Reinholz·Oliver Scharf·Reiner Wedell
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Abstract

The color X-ray camera SLcam(R) is a full-field, single photon detector providing scanning free, energy and spatially resolved X-ray imaging. Spatial resolution is achieved with the use of polycapillary optics guiding X-ray photons from small regions on a sample to distinct energy dispersive pixels on a CCD. Applying sub-pixel resolution, signals from individual capillary channels can be distinguished. Accordingly the SLcam(R) spatial resolution can be released from pixel size being confined rather to a diameter of individual polycapillary channels. In this work a new approach to sub-pixel resolution algorithm comprising photon events also from the pixel centers is proposed. The details of the employed numerical method and several sub-pixel resolution examples are presented and discussed.

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Stanisław H. Nowak, Aniouar Bjeoumikhov, Johannes von Borany, Josef Buchriegler, Frans Munnik, Marko Petric, Martin Radtke, Axel D. Renno, Uwe Reinholz, Oliver Scharf, Reiner Wedell. 2015-01-27. Sub-pixel resolution with color X-ray camera SLcam(R). https://doi.org/10.1039/c5ja00028a

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