https://dx.doi.org/10.1016/0039-6028(85)90590-4">
 

Title

Evolution of Magic Numbers in Mass Spectra of Clusters after Ionization

Abstract

Clusters of various materials have been generated by adiabatic expansion, ionized by electron impact and analysed by a time-of-flight mass spectrometer. The size distribution of the ions is determined either at the end of the acceleration gap (a few microseconds after ionization) or at the entrance to the detector (a factor of ten later). These experiments demonstrate that the well-known intensity anomalies of water clusters evolve very slowly via evaporation of monomers from the cluster ions. In the cases of CO2 and 2,2-dimethylpropane (C5H12) similar processes are observed. It seems that the corresponding timescale for the evolution of “ magic numbers” in xenon cluster ions is much shorter.

Department

Physics

Publication Date

6-3-1985

Journal Title

Surface Science

Publisher

Elsevier

Digital Object Identifier (DOI)

https://dx.doi.org/10.1016/0039-6028(85)90590-4

Document Type

Article

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