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Disentangling formation of multiple-core holes in aminophenol molecules exposed to bright X-FEL radiation
Stockholm University, Faculty of Science, Department of Physics. Uppsala University, Sweden; Jan Kochanowski University, Poland.
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Number of Authors: 33
2015 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 48, no 24, 244003Article in journal (Refereed) Published
Abstract [en]

Competing multi-photon ionization processes, some leading to the formation of double core hole states, have been examined in 4-aminophenol. The experiments used the linac coherent light source (LCLS) x-ray free electron laser, in combination with a time-of-flight magnetic bottle electron spectrometer and the correlation analysis method of covariance mapping. The results imply that 4-aminophenol molecules exposed to the focused x-ray pulses of the LCLS sequentially absorb more than two x-ray photons, resulting in the formation of multiple core holes as well as in the sequential removal of photoelectrons and Auger electrons (so-called PAPA sequences).

Place, publisher, year, edition, pages
2015. Vol. 48, no 24, 244003
Keyword [en]
multiple ionization processes, double core hole, covariance mapping
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-126785DOI: 10.1088/0953-4075/48/24/244003ISI: 000368622900004OAI: oai:DiVA.org:su-126785DiVA: diva2:943957
Available from: 2016-06-28 Created: 2016-02-15 Last updated: 2016-06-28Bibliographically approved

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Kamińska, MagdalenaSalén, PeterMeulen, Peter v. d.Linusson, PerThomas, Richard D.Larsson, Mats
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