De Angelis, Dario;
Longetti, Luca;
Bonano, Gabriele;
Pelli Cresi, Jacopo Stefano;
Foglia, Laura;
Pancaldi, Matteo;
Capotondi, Flavio;
... Mincigrucci, Riccardo; + view all
(2024)
A sub-100 nm thickness flat jet for extreme ultraviolet to soft X-ray absorption spectroscopy.
Journal of Synchrotron Radiation
, 31
(3)
pp. 1-8.
10.1107/S1600577524001875.
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Abstract
Experimental characterization of the structural, electronic and dynamic properties of dilute systems in aqueous solvents, such as nanoparticles, molecules and proteins, are nowadays an open challenge. X-ray absorption spectroscopy (XAS) is probably one of the most established approaches to this aim as it is element-specific. However, typical dilute systems of interest are often composed of light elements that require extreme-ultraviolet to soft X-ray photons. In this spectral regime, water and other solvents are rather opaque, thus demanding radical reduction of the solvent volume and removal of the liquid to minimize background absorption. Here, we present an experimental endstation designed to operate a liquid flat jet of sub-micrometre thickness in a vacuum environment compatible with extreme ultraviolet/soft XAS measurements in transmission geometry. The apparatus developed can be easily connected to synchrotron and free-electron-laser user-facility beamlines dedicated to XAS experiments. The conditions for stable generation and control of the liquid flat jet are analyzed and discussed. Preliminary soft XAS measurements on some test solutions are shown.
| Type: | Article |
|---|---|
| Title: | A sub-100 nm thickness flat jet for extreme ultraviolet to soft X-ray absorption spectroscopy |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1107/S1600577524001875 |
| Publisher version: | http://dx.doi.org/10.1107/s1600577524001875 |
| Language: | English |
| Additional information: | This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, https://creativecommons.org/licenses/by/4.0/legalcode, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
| Keywords: | Liquid flat jets; Elettra synchrotron; FERMI free-electron laser; extreme ultra-violet; high-vacuum environments; X-ray absorption spectroscopy. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10190945 |
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