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A new perspective to the photodissociation of cluster ions: the detection of neutral fragments following the photoexcitation of Ar+3

โœ Scribed by N.G. Gotts; R. Hallett; J.A. Smith; A.J. Stace

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
447 KB
Volume
181
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Received17Aprill99l;infinalform 15May 1991

Mass and kinetic energy resolved Ar: ions have been photodissociated at 532 nm in the entrance to a 2 m time-of-flight device. Subsequent deflection of all the ions allows for time resolved measurements to be undertaken on the neutral photofragments. As a function of the angle of laser polarisation, it is shown that the results are consistent with previous observations on the ion photofragment, Ar+. Additional information on the photodissociation process is extracted by making use ofthe fact that features in the observed velocity spectra must correlate with an integer number of neutral particles.

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โœ J. A. Smith; J. F. Winkel; A. J. Stace; B. J. Whitaker ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 332 KB

A novel instrument which combines high-resolution doublefocusing mass spectrometry with time-of-flight detection was applied to the study of cluster ion photofragmentation. Using this apparatus, kinetic energy measurements were made on neutral photofragments following the excitation of Ar:, at 532 n