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Applied Surface Science, Volume 272, 1 May 2013, Pages 119-123.
Libero Palladino, Ramon Gimenez De Lorenzo, Maurizio Di Paolo Emilio, Tania Limongi.
Dipartimento di Fisica, Universita’ de L’Aquila, Italy &
INFN, Laboratorio Nazionale del Gran Sasso, Assergi (AQ), Italy &
Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy
Abstract
In this work, the characteristics of X-ray beam generated from a plasma produced by focusing a Nd-Yag/glass laser beam on mylar or yttrium target were presented.
For each target material, the conversion efficiencies of the soft X-ray emission in two different energy ranges, (i) 300–510 eV (almost coincident with the Water Window), (ii) 450–850 eV were measured. The experimental results of the conversion efficiencies will be utilized at the PLASMA-X laboratory of L’Aquila University for the realization of an intense monochromatic X-ray microbeam to be used in radiobiological and in transmission X-ray microscopy applications. In the presented experimental set-up, at the wavelength of 2.48 nm, a monochromatic soft X-rays beam was collected by multilayer spherical mirrors reflecting at an incidence angle close to the normal of the surface.
The optical system geometry, the monochromatic beam intensity and the measures of efficiency of conversion of X-ray were described in this paper.
Contact Information:
Prof. Libero Palladino (the head of the Plasma X Laboratory)
“Department of Health, Life & Environmental Sciences (MeSVA) University of L’Aquila and National Institute of Nuclear Physics (INFN), GC Gran Sasso National Laboratory (LNGS) L’Aquila.”
