Naslov
Sub-pixel resolution with a color X-ray camera

Autori
Nowak, Stanislaw H. ; Bjeoumikhov, Aniouar ; von Borany, Johannes ; Buchriegler, Josef ; Munnik, Frans ; Petric, Marko ; Radtke, Martin ; Renno, Axel D. ; Reinholz, Uwe ; Scharf, Oliver ; Wedell, Reiner

Izvornik
Journal of analytical atomic spectrometry (0267-9477) 30 (2015), 9; 1890-1897

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Sub-pixel resolution, energy and spatially resolved X-ray imaging

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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