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in subjects: "Electron Capture"  
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Target Dependences for Continuum Capture Processes in Ion-Atom Collisions. [1. 6 to 3. 9 Mev/U]

Description: By using bare and few-electron ions of higher charge on heavier targets, some fundamental aspects of continuum capture which had previously been obscured due to limitations imposed by high direct ionization backgrounds are examined. Beams of 1.6 to 3.9 MeV/u C/sup 6 +/, O/sup 8 +/, and Si/sup 14 +/ were passed through thin targets of helium, neon, and argon. The electrons ejected within a forward cone of half-angle about 1.8/sup 0/ were energy analyzed with data collected using standard multi-s… more
Date: January 1, 1979
Creator: Vane, C. R.; Sellin, I. A.; Suter, M.; Elston, S. B.; Alton, G. D.; Thoe, R. S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Introductory remarks on electron capture by multicharged ions

Description: An overview is presented of applications of multicharged-ion electron capture and, through the qualitative assessment of availability of information, the general status of current understanding of such capture. A chart is given on which the various ion collision processes are related to other pertinent fields of physical research notably fusion, astrophysics, the solar corona, and lasers. The production and transport of ions is also noted. The symposium considers collision velocities less than … more
Date: January 1, 1979
Creator: Crandall, D.H.
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Partner: UNT Libraries Government Documents Department
open access

Neutral hydrogen from the foil-induced dissociation of /sup 4/HeH/sup +/, /sup 3/HeH/sup +/, and H/sub 2//sup +/. [170 to 1800 keV/amu]

Description: High resolution energy spectra and angular distributions of H/sup 0/ from the dissociation of /sup 4/HeH/sup +/, /sup 3/HeH/sup +/, and H/sub 2//sup +/ in thin carbon foils are presented for incident ion energies ranging from 170 to 1800 keV/amu. For the range of dwell times inside the target foils studied (about 1 to 10 fsec), the dominant mechanism for such dissociation is the Coulomb explosion of the ions inside the target followed by electron capture near the rear surface of the foil. At th… more
Date: January 1, 1979
Creator: Cooney, P J; Gemmell, D S; Kanter, E P; Pietsch, W J & Zabransky, B J
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Partner: UNT Libraries Government Documents Department
open access

Negative ions of polyatomic molecules. [Resonance, anions, electron dissociative attachment, electron capture, potential energy, cross sections, yields, lifetime]

Description: General concepts relating to, and recent advances in, the study of negative ions of polyatomic molecules are discussed with emphasis on halocarbons. The outline of the paper is as follows: basic electron attachment processes, modes of electron capture by molecules, short-lived transient negative ions, dissociative electron attachment to ground-state molecules, dissociative electron attachment to hot molecules (effects of temperature on electron attachment), parent negative ions, effect of densi… more
Date: January 1, 1979
Creator: Christophorou, L. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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