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Auger electron and photoabsorption spectra of glycine in the vicinity of the oxygen K-edge measured with an X-FEL

Sanchez-Gonzalez, A; Barillot, TR; Squibb, RJ; Kolorenc, P; Agaker, M; Averbukh, V; Bearpark, MJ; ... Marangos, JP; + view all (2015) Auger electron and photoabsorption spectra of glycine in the vicinity of the oxygen K-edge measured with an X-FEL. Journal of Physics B: Atomic, Molecular and Optical Physics , 48 (23) , Article 234004. 10.1088/0953-4075/48/23/234004. Green open access

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Abstract

We report the first measurement of the near oxygen K-edge auger spectrum of the glycine molecule. Our work employed an x-ray free electron laser as the photon source operated with input photon energies tunable between 527 and 547 eV. Complete electron spectra were recorded at each photon energy in the tuning range, revealing resonant and non-resonant auger structures. Finally ab initio theoretical predictions are compared with the measured above the edge auger spectrum and an assignment of auger decay channels is performed.

Type: Article
Title: Auger electron and photoabsorption spectra of glycine in the vicinity of the oxygen K-edge measured with an X-FEL
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/0953-4075/48/23/234004
Publisher version: http://dx.doi.org/10.1088/0953-4075/48/23/234004
Language: English
Additional information: Copyright © 2015 IOP Publishing Ltd.
Keywords: X-FEL, auger electron, glycine, oxygen, ab initio calculation
UCL classification: UCL > Provost and Vice Provost Offices
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 Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/1474737
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