Disentangling formation of multiple-core holes in aminophenol molecules exposed to bright X-FEL radiation
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
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
multiple ionization processes, double core hole, covariance mapping
IdentifiersURN: urn:nbn:se:su:diva-126785DOI: 10.1088/0953-4075/48/24/244003ISI: 000368622900004OAI: oai:DiVA.org:su-126785DiVA: diva2:943957