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Recent Developments of the VOXES Von Hamos X-Ray Spectrometer for Laboratory XES and XAS Studies

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Abstract:

VOXES is a Von Hamos X-ray spectrometer developed at the INFN National Laboratories of Frascati for high-resolution laboratory X-ray spectroscopy in the 5-20 keV range. It uses curved mosaic crystals and motorized positioning stages to perform wavelength-dispersive X-ray fluorescence (WD-XRF) with sub-10 eV tunable resolution for extended and dilute samples. Recent developments include the integration of an energy-dispersive X-ray fluorescence (ED-XRF) line based on a silicon pin-diode detector, which enables flux monitoring and simultaneous ED and WD measurements. In addition, a dedicated liquid-sample holder has been introduced, and a Y-shaped support geometry, crucial for switching to a transmission layout, provides mechanical compatibility with laboratory XAS, now under implementation. These upgrades expand the versatility and automation of VOXES, strengthening its role as a table-top platform for laboratory X-ray spectroscopy.

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Periodical:

Engineering Innovations (Volume 19)

Pages:

23-29

DOI:

https://doi.org/10.4028/p-rQpe9Z

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Cite this paper

Online since:

June 2026

Authors:

Simone Manti*, Alessandro Scordo

Keywords:

Von-Hamos, VOXES, XAS, XES

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