A microfocusing beamline for X-ray Fluorescence and Micro-diffraction (WAXS, SAXS)

Contact Tel: +33(0)47688 +ext Rémi Tucoulou Email 2748 Experimental Station 2782

Synopsis

Originating as a collaboration between the ESRF and the Micro and Trace Analysis Center (MITAC) of the University of Antwerp (Belgium), the ID18F microprobe is designed to be a stable but evolutive instrument with prominence given to the ease of use, reliability and repeatability of the system. A primary aim of the end-station activity is to develop micro-X-ray fluorescence spectrometry with energy dispersive detection as an accurate and traceable quantitative analytical tool at the microscopic level and as a reference tool for other beam-excited microanalytical techniques. In addition to these high quality X-ray fluorescence microprobe measurements, the instrument is a multi-technique station which can offer simultaneous focused-probe fluorescence and wide or small angle X-ray scattering measurements and the possibility for fluorescence tomography and absorption tomography acquisitions. The ID18F end-station is open to external users under the standard peer-reviewed and industrial access programmes.

The end-station is co-financed by the ESRF, the Fund for Scientific Research Flanders-FWO-Vlaanderen and the Micro-XRF project of the  framework programme of the European Commission.

Reference: A. Somogyi, M. Drakopoulos, L. Vincze, B. Vekemans, C. Camerani, K. Janssens, A. Snigirev, F. Adams, "ID18F: a new micro X-ray fluorescence end-station at the European Synchrotron Radiation Facility (ESRF): preliminary results", X-ray Spectrometry, 30, 242-252 (2001).

Beam Characteristics

Energy Range	6-28keV
Monochromaticity	dE/E
Unfocused Beam Size at end station (VxH)	~ 0.6mm x 1.6mm (fwhm)
Microprobe focus size (VxH)	1.5µm x 12µm (fwhm) [can be reduced to 1.5µm x 4 µm at the expense of ~ 10x reduction in flux]
Microprobe flux	Typically 5. ph/s

More details of the ID18F endstation characteristics can be found in the following general description and specific information regarding the micro-probe set-up in the end-station description.

Experimental Techniques

• Scanning Fluorescence X-ray Microscopy
• X-ray Microdiffraction: WAXS, SAXS

Information for users

Applying for beamtime at ID18F:

A guide to preparing experiments on ID18F: Sample Geometries, Sample Environments

Onsite information: