Negative-Ion/Positive-Ion Coincidence Yields of Core-Excited Water

Christian Stråhlman, Antti Kivimäki, Robert Richter, Rami Sankari

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

We report yields of mass-resolved negative ions and positive ions measured in coincidence after core-excitation of water molecules. The analysis of negative-ion/positive-ion and negative-ion/positive-ion/positive-ion coincidence events provides new information on pathways leading to negative ion production, enhancing the present understanding of the dissociation processes of the water molecule. Dissociation following (resonant) Auger decay dominates negative ion production, but radiative decay is shown to contribute above the O 1s ionization threshold. A peak in the H-/O+ yield above the O 1s threshold is attributed to decay from doubly excited states.
Originalspråkengelska
Sidor (från-till)6389-6393
Antal sidor5
TidskriftThe Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
Volym120
Nummer32
Tidigt onlinedatum2016 juli 21
DOI
StatusPublished - 2016

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik

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