Abstract
A near 1-keV photons from the Xe/He plasma produced by the interaction of laser beam with a double stream gas puff target were employed for studies of L absorption edges of period 4 transitional metals with atomic number Z from 26 to 30. The dual-channel, compact NEXAFS system was employed for the acquisition of the absorption spectra. L1–3 absorption edges of the samples were identified in transmission mode using broadband emission from the Xe/He plasma to show the applicability of such source and measurement system to the NEXAFS studies of the transition metals, including magnetic materials.
Highlights
The blue region indicates the well-known “water window” spectral range that is typically used for soft X-ray (SXR) microscopy applications [50,51,52], and can be used for near edge X-ray absorption fine structure spectroscopy (NEXAFS) studies of organic materials [10,53] (C-K and O-K edges are indicated at 284 and 540 eV respectively, N-K edge is in the middle of that range at ~410 eV)
We have shown that using a dual channel NEXAFS measurement system, recording independently the sample and reference spectra, it was possible to acquire good quality spectra from single and multilayered samples in the transmission mode reaching
Compact NEXAFS was demonstrated before reaching photon energies above 1 keV, e.g., [7]; it was performed with solid-state targets, e.g., copper, producing debris from the laser ablation process
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. Material investigations are typically performed employing beamlines at synchrotrons. Such studies are often based on an investigation of subtle changes in the absorption coefficient spectrum in the X-ray and soft X-ray (SXR) spectral ranges near the absorption edge, i.e., using near edge X-ray absorption fine structure spectroscopy (NEXAFS) [1,2]
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