Journal ArticleDOI
Dissociation of CO induced by He2+ ions : I. Fragmentation and kinetic energy release spectra
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TLDR
The method to transform the singles and coincidence time-of-flight spectra into total kinetic energy distributions, which represent kinetic energy release distributions which clearly exhibit various contributions associated with different dissociation channels are described.Abstract:
The dissociation of ions produced in collisions of ions with CO has been studied by time-of-flight measurements. Both singles and coincidence time-of-flight techniques have been used to determine the kinetic energy release of the dissociating CO molecules. We describe the method to transform the singles and coincidence time-of-flight spectra into total kinetic energy distributions and discuss these distributions. They represent kinetic energy release distributions which clearly exhibit various contributions associated with different dissociation channels. In comparison with other ionization methods similarities but also clear differences are noted.read more
Citations
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Journal ArticleDOI
Strong velocity effects in collisions of he+ with fullerenes
TL;DR: In this article, the authors studied fragmentation and ionization of C-60 by He+ impact over a velocity range from 0.1 to 1 a.u.u., where a transition from vibrational to electronic excitation is predicted.
Journal ArticleDOI
Fast ion-induced CO molecule fragmentation in the strong interaction regime
TL;DR: In this paper, a coincident time-of-flight technique is used to investigate fast ion-induced CO molecule fragmentation with swift and multicharged heavy ions, and the results concern the strong interaction regime for which no data have yet been reported.
Journal ArticleDOI
Collisions of with neutral : Charge transfer and fragmentation
TL;DR: In this paper, the authors used the measured time-of-flight spectra to determine the kinetic energy release for various fragmentation processes and distinguish between evaporation of neutral molecules from vibrationally excited ions on the one hand and super-asymmetric fission into two charged fragments on the other hand.
Journal ArticleDOI
Fragmentation of H2O molecules following the interaction with slow, highly charged Ne ions
TL;DR: In this article, the authors measured the energy and angular distribution of fragment ions from collisions of 2-90 keV Neq+ ions with H2O molecules and interpreted the results within the framework of a Coulomb explosion model.
Journal ArticleDOI
Electronic versus vibrational excitation in Heq+ collisions with fullerenes
TL;DR: In this article, the authors studied collisions of Heq+ ions with neutral fullerenes as a function of velocity and charge state (q = 1, 2) and found that the yield of C60−2mr+ clusters decreases with 1/v, as expected for quantities related to direct vibrational excitation.
References
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Journal ArticleDOI
Time-of-flight mass spectrometer with improved resolution
W. C. Wiley,I. H. McLaren +1 more
TL;DR: In this paper, a new type of ion gun is described which greatly improves the resolution of a nonmagnetic time-of-flight mass spectrometer, and the focusing action of this gun is discussed and analyzed mathematically.
Journal Article
The mass-reflectron, a new nonmagnetic time-of-flight mass spectrometer with high resolution
TL;DR: In this article, a nonmagnetic time off-light mass spectrometer with high resolution is described and a description and principle of operation is given for the mass-reflection.
Journal ArticleDOI
Dissociative ionization of small molecules in intense laser fields
K Codling,L J Frasinski +1 more
TL;DR: In this paper, the Coulomb explosion model is used to explain the lack of variation of fragment ion kinetic energies with laser risetime, the variation of kinetic energy with laser wavelength and the molecule specificity.
Journal ArticleDOI
Theory of band shape formation in Auger and autoionization spectra of molecules. Numerical applications and new high‐resolution spectra for CO
TL;DR: In this paper, the role of lifetime vibrational interference in the various vibronic decay channels is elucidated and high resolution Auger and autoionization spectra are presented and calculated band shapes are compared with the experimental recordings.
Journal ArticleDOI
Experimental and theoretical investigation of the spectroscopy and dynamics of multiply charged CO cations.
Pascal Lablanquie,Jacques Delwiche,M.-J. Hubin-Franskin,I. Nenner,P. Morin,Kenji Ito,John H. D. Eland,J.-M. Robbe,G. Gandara,Jean-Baptiste Fournier,P. G. Fournier +10 more
TL;DR: The spectroscopy and the dynamics of double-charge-transfer spectra in the 35-150-eV energy range have been studied using various complementary experiments, such as photoionization with synchrotron radiation, ion-ion coincidence technique, and double charge transfer spectra as mentioned in this paper.