The SLcam: A full-field energy dispersive X-ray camera
| Autor: | A. Bjeoumikhov, R. Wedell, I. Ordavo, Heinrich Riesemeier, H. Soltau, Uwe Reinholz, N. Langhoff, Martin Radtke, Oliver Scharf, G. Buzanich |
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| Rok vydání: | 2012 |
| Předmět: |
Physics - Instrumentation and Detectors
Photon Pixel business.industry Resolution (electron density) X-ray detector Magnification FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) Sample (graphics) Particle detector Optics Astrophysics - Instrumentation and Methods for Astrophysics business Instrumentation Instrumentation and Methods for Astrophysics (astro-ph.IM) Mathematical Physics Energy (signal processing) |
| DOI: | 10.48550/arxiv.1210.4344 |
| Popis: | The color X-ray camera (SLcam) is a full-field single photon imager. As stand-alone camera, it is applicable for energy and space-resolved X-ray detection measurements. The exchangeable poly-capillary optics in front of a beryllium entrance window conducts X-ray photons from the probe to distinguished energy dispersive pixels on a pnCCD. The dedicated software enables the acquisition and the online processing of the spectral data for all 69696 pixels, leading to a real-time visualization of the element distribution in a sample. No scanning system is employed. A first elemental composition image of the sample is visible within minutes while statistics is improving in the course of time. Straight poly-capillary optics allows for 1:1 imaging with a space resolution of 50 um and no limited depth of sharpness, ideal to map uneven objects. Using conically shaped optics, a magnification of 6 times was achieved with a space resolution of 10 um. We present a measurement with a laboratory source showing the camera capability to perform fast full-field X-ray Fluorescence (FF-XRF) imaging with an easy, portable and modular setup. Comment: 4 pages, 2 figures, iWorid 2012 confernce contribution |
| Databáze: | OpenAIRE |
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