Single-photon double and triple ionization of acetaldehyde (ethanal) studied by multi-electron coincidence spectroscopy
Number of Authors: 8
2015 (English)In: Chemical Physics, ISSN 0301-0104, E-ISSN 1873-4421, Vol. 463, 159-168 p.Article in journal (Refereed) Published
Single-photon multiple ionization processes of acetaldehyde (ethanal) have been experimentally investigated by utilizing a multi-particle coincidence technique based on the time-of-flight magnetic bottle principle, in combination with either a synchrotron radiation source or a pulsed helium discharge lamp. The processes investigated include double and triple ionization in the valence region as well as single and double Auger decay of core-ionized acetaldehyde. The latter are studied site-selectively for chemically different carbon core vacancies, scrutinizing early theoretical predictions specifically made for the case of acetaldehyde. Moreover, Auger processes in shake-up and core-valence ionized states are investigated. In the cases where the processes involve simultaneous emission of two electrons, the distributions of the energy sharing are presented, emphasizing either the knock-out or shake-off mechanism.
Place, publisher, year, edition, pages
2015. Vol. 463, 159-168 p.
Acetaldehyde, Double ionization, Triple ionisation, Site-specific Auger decay
Chemical Sciences Physical Sciences
IdentifiersURN: urn:nbn:se:su:diva-125647DOI: 10.1016/j.chemphys.2015.10.006ISI: 000365582100021OAI: oai:DiVA.org:su-125647DiVA: diva2:895497