Issue 9, 2015

Sub-pixel resolution with a color X-ray camera


The color X-ray camera SLcam® 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 charged-coupled device detector. Applying sub-pixel resolution, signals from individual capillary channels can be distinguished. Therefore, the SLcam® spatial resolution, which is normally limited to the pixel size of the charge-coupled device, can be improved to the size of individual polycapillary channels. In this work a new approach to a 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.

Graphical abstract: Sub-pixel resolution with a color X-ray camera

Article information

Article type
28 Jan 2015
01 Jun 2015
First published
01 Jun 2015
This article is Open Access
Creative Commons BY license

J. Anal. At. Spectrom., 2015,30, 1890-1897

Author version available

Sub-pixel resolution with a color X-ray camera

S. H. Nowak, A. Bjeoumikhov, J. von Borany, J. Buchriegler, F. Munnik, M. Petric, M. Radtke, A. D. Renno, U. Reinholz, O. Scharf and R. Wedell, J. Anal. At. Spectrom., 2015, 30, 1890 DOI: 10.1039/C5JA00028A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity