Journal article
Determination of absolute cross sections for cluster-specific decays



Publication Details
Authors:
Hans, A.; Knie, A.; Förstel, M.; Schmidt, P.; Reiss, P.; Ozga, C.; Hergenhahn, U.; Ehresmann, A.
Publisher:
IOP PUBLISHING LTD
Publication year:
2016
Journal:
Journal of Physics B: Atomic, Molecular and Optical Physics
Pages range:
105101
Volume number:
49
Number of pages:
6
ISSN:
0953-4075

Abstract


Fluorescence spectrometry is used to determine absolute cross sections of cluster-specific decay processes following photon excitation. Absolute values for selected processes in partially condensed supersonic jets are determined using atomic benchmarks. This method is applicable to a wide variety of processes in clusters in which a photon is emitted. In a proof-of-principle experiment, absolute cross sections of processes in two prototype systems were measured: (I) inner-valence excitation and ionization of Ar clusters and (II) resonant interatomic Coulombic decay (rICD) in Ne clusters. Example II is the first measurement of absolute cross sections of ICD whatsoever.




Keywords
clusters, cross sections, fluorescence, ICD

Last updated on 2019-25-07 at 10:31

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