University of Oulu

Kooser, K., Kivimäki, A., Turunen, P., Pärna, R., Reisberg, L., Kirm, M., Valden, M., Huttula, M., Kukk, E. (2020) Gas-phase endstation of electron, ion and coincidence spectroscopies for diluted samples at the FinEstBeAMS beamline of the MAX IV 1.5 GeV storage ring. J. Synchrotron Rad. (2020). 27, 1080-1091,

Gas-phase endstation of electron, ion and coincidence spectroscopies for diluted samples at the FinEstBeAMS beamline of the MAX IV 1.5 GeV storage ring

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Author: Kooser, Kuno1,2; Kivimäki, Antti3,4; Turunen, Paavo3;
Organizations: 1Department of Physics and Astronomy, University of Turku, FIN-20014 Turku, Finland
2Institute of Physics,University of Tartu, W. Ostwaldi 1, EE-50411 Tartu, Estonia
3Nano and Molecular Systems Research Unit,University of Oulu, PO Box 3000, FIN-90014 Oulu, Finland
4MAX IV Laboratory, Lund University, PO Box 118,SE-22100 Lund, Sweden
5Surface Science Group, Laboratory of Photonics, Tampere University of Technology,FIN-33101, Tampere, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.3 MB)
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Language: English
Published: International Union of Crystallography, 2020
Publish Date: 2020-09-17


Since spring 2019 an experimental setup consisting of an electron spectrometer and an ion time-of-flight mass spectrometer for diluted samples has been available for users at the FinEstBeAMS beamline of the MAX IV Laboratory in Lund, Sweden. The setup enables users to study the interaction of atoms, molecules, (molecular) microclusters and nanoparticles with short-wavelength (vacuum ultraviolet and X-ray) synchrotron radiation and to follow the electron and nuclear dynamics induced by this interaction. Test measurements of N₂ and thiophene (C₄H₄S) molecules have demonstrated that the setup can be used for many-particle coincidence spectroscopy. The measurements of the Ar 3p photoelectron spectra by linear horizontal and vertical polarization show that angle-resolved experiments can also be performed. The possibility to compare the electron spectroscopic results of diluted samples with solid targets in the case of CO₂O₃ and Fe₂O₃ at the Co and Fe L2,3-absorption edges in the same experimental session is also demonstrated. Because the photon energy range of the FinEstBeAMS beamline extends from 4.4 eV up to 1000 eV, electron, ion and coincidence spectroscopy studies can be executed in a very broad photon energy range.

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Series: Journal of synchrotron radiation
ISSN: 0909-0495
ISSN-E: 1600-5775
ISSN-L: 0909-0495
Volume: 27
Issue: 4
Pages: 1080 - 1091
DOI: 10.1107/S1600577520007146
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: Construction of the FinEstBeAMS beamline was funded primarily by the European Union through the European Regional Development Fund (project ‘Estonian beamline toMAX IV synchrotron’) and by the Academy of Finland through the Finnish Research Infrastructure funding calls(FIRI2010, FIRI2013, FIRI2014). From these, FIRI2010 and FIRI2013 calls provided the main funding for the GPES endstation. The research team from University of Tartu gratefully acknowledges ERDF funding in Estonia granted to the Center of Excellence TK141 Advanced materials and high-technology devices for sustainable energetics, sensoric sand nanoelectronics (project No. 2014-2020.4.01.15-0011).
Copyright information: © The Author(s) 2020. This article is published under an open-access Creative Commons Attribution (CC-BY) Licence.