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Sankari A, Stråhlman C, Sankari R, Partanen L, Laksman J, Kettunen JA, Galván IF, Lindh R, Malmqvist PÅ, Sorensen SL. Non-radiative decay and fragmentation in water molecules after 1a1−14a1 excitation and core ionization studied by electron-energy-resolved electron–ion coincidence spectroscopy. J Chem Phys 2020; 152:074302. [DOI: 10.1063/1.5141414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Anna Sankari
- Department of Physics, Lund University, P.O. Box 118, S-22100 Lund, Sweden
- Department of Theoretical Chemistry, Lund University, Chemical Center, P.O. Box 124, S-22100 Lund, Sweden
| | - Christian Stråhlman
- Department of Materials Science and Applied Mathematics, Malmö University, S-20506 Malmö, Sweden
- MAX IV Laboratory, Lund University, P.O. Box 118, S-22100 Lund, Sweden
| | - Rami Sankari
- MAX IV Laboratory, Lund University, P.O. Box 118, S-22100 Lund, Sweden
- Department of Physics, Tampere University of Technology, P.O. Box 692, FIN-33101 Tampere, Finland
| | - Leena Partanen
- Department of Physics, Tampere University of Technology, P.O. Box 692, FIN-33101 Tampere, Finland
- Department of Physics, University of Oulu, P.O. Box 3000, FIN-90014 Oulu, Finland
| | - Joakim Laksman
- Department of Physics, Lund University, P.O. Box 118, S-22100 Lund, Sweden
- MAX IV Laboratory, Lund University, P.O. Box 118, S-22100 Lund, Sweden
| | - J. Antti Kettunen
- Department of Physics, University of Oulu, P.O. Box 3000, FIN-90014 Oulu, Finland
| | - Ignacio Fdez. Galván
- Department of Chemistry – BMC, Uppsala University, P.O. Box 576, S-75123 Uppsala, Sweden
| | - Roland Lindh
- Department of Chemistry – BMC, Uppsala University, P.O. Box 576, S-75123 Uppsala, Sweden
| | - Per-Åke Malmqvist
- Department of Theoretical Chemistry, Lund University, Chemical Center, P.O. Box 124, S-22100 Lund, Sweden
| | - Stacey L. Sorensen
- Department of Physics, Lund University, P.O. Box 118, S-22100 Lund, Sweden
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Strobel C, Gantefoer G, Bodi A, Hemberger P. A magnetic bottle time-of-flight electron spectrometer suitable for continuous ionization sources. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:063105. [PMID: 31255026 DOI: 10.1063/1.5097388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 05/23/2019] [Indexed: 06/09/2023]
Abstract
We present a newly developed magnetic-bottle time-of-flight electron spectrometer suitable for continuous or quasicontinuous photoionization sources such as synchrotrons. A strong magnetic field collects almost all photoelectrons from a well-defined ionization volume and quantitatively suppresses background electrons which originate outside of this interaction region. Although it is a pulsed instrument, a relatively high duty cycle is achieved by storing the photoelectrons generated between two cycles in an electromagnetic trap. This makes the new instrument suitable for experiments with very low sample densities. Another advantage is the high energy resolution, 50 meV in the first version of the spectrometer described here, which simply depends on the length of the time-of-flight instrument.
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Affiliation(s)
- Christoph Strobel
- Department of Physics, University of Konstanz, 78457 Konstanz, Germany
| | - Gerd Gantefoer
- Department of Physics, University of Konstanz, 78457 Konstanz, Germany
| | - Andras Bodi
- Laboratory for Synchrotron Radiation and Femtochemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Patrick Hemberger
- Laboratory for Synchrotron Radiation and Femtochemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
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