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Proceedings Paper

Photo- and collision-induced dissociation of Ar cluster ions
Author(s): Tamotsu Kondow; Takeshi Nagata; Shinji Nonose
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Paper Abstract

Photo- and collision- induced dissociation of an argon cluster ion, Arn+, were investigated by use of mass spectrometry. The kinetic and angular distributions of the ionic and neutral photofragments revealed two reaction pathways; dissociation of the trimeric core ion and evaporation from its solvation shell. In the Kr and Ne collisions with Arn+, the size- and collision energy- dependences of the dissociation cross sections were explained in the scheme of the charge - induced dipole, and induced dipole - induced dipole scatterings. Conversion efficiency of the collision energy into the internal energy of Arn+ was found to be proportional to the internal degrees of freedom. The upper limit of the conversion efficiency was estimated to be about 60 % in the collision energy of 0.2 eV.

Paper Details

Date Published: 1 April 1992
PDF: 7 pages
Proc. SPIE 1638, Optical Methods for Time- and State-Resolved Chemistry, (1 April 1992); doi: 10.1117/12.58131
Show Author Affiliations
Tamotsu Kondow, Univ. of Tokyo (Japan)
Takeshi Nagata, Univ. of Tokyo (Japan)
Shinji Nonose, Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 1638:
Optical Methods for Time- and State-Resolved Chemistry
Cheuk-Yiu Ng, Editor(s)

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