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Title: Electron-impact dissociative excitation and ionization of N{sub 2}D{sup +}

Abstract

Absolute cross sections for electron-impact dissociation of N{sub 2}D{sup +} producing N{sub 2}{sup +}, ND{sup +}, and N{sup +} ion fragments were measured in the 5- to 100-eV range using a crossed electron-ion beams technique. In the 5- to 20-eV region, in which dissociative excitation (DE) is the principal contributing mechanism, N{sub 2}{sup +} production dominates. The N{sub 2}{sup +} + D dissociation channel shows a large resonant-like structure in the DE cross section, as observed previously in electron impact dissociation of triatomic dihydride species [M. Fogle, E. M. Bahati, M. E. Bannister, S. H. M. Deng, C. R. Vane, R. D. Thomas, and V. Zhaunerchyk, Phys. Rev. A 82, 042720 (2010)]. In the dissociative ionization (DI) region, 20- to 100-eV, N{sub 2}{sup +}, ND{sup +}, and N{sup +} ion fragment production are comparable. The observance of the ND{sup +} and N{sup +} ion fragments indicate breaking of the N - N bond along certain dissociation channels.

Authors:
; ; ; ; ; ;  [1];  [2];  [3]
  1. Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)
  2. (United States)
  3. (Sweden)
Publication Date:
OSTI Identifier:
22068716
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; CROSS SECTIONS; DISSOCIATION; ELECTRONS; EV RANGE 01-10; EV RANGE 10-100; EXCITATION; ION BEAMS; IONIZATION; NITROGEN IONS

Citation Formats

Fogle, M., Bahati, E. M., Bannister, M. E., Deng, S. H. M., Vane, C. R., Thomas, R. D., Zhaunerchyk, V., Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, and Department of Physics, Albanova, Stockholm University, SE-106 91 Stockholm. Electron-impact dissociative excitation and ionization of N{sub 2}D{sup +}. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.032714.
Fogle, M., Bahati, E. M., Bannister, M. E., Deng, S. H. M., Vane, C. R., Thomas, R. D., Zhaunerchyk, V., Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, & Department of Physics, Albanova, Stockholm University, SE-106 91 Stockholm. Electron-impact dissociative excitation and ionization of N{sub 2}D{sup +}. United States. doi:10.1103/PHYSREVA.84.032714.
Fogle, M., Bahati, E. M., Bannister, M. E., Deng, S. H. M., Vane, C. R., Thomas, R. D., Zhaunerchyk, V., Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, and Department of Physics, Albanova, Stockholm University, SE-106 91 Stockholm. Thu . "Electron-impact dissociative excitation and ionization of N{sub 2}D{sup +}". United States. doi:10.1103/PHYSREVA.84.032714.
@article{osti_22068716,
title = {Electron-impact dissociative excitation and ionization of N{sub 2}D{sup +}},
author = {Fogle, M. and Bahati, E. M. and Bannister, M. E. and Deng, S. H. M. and Vane, C. R. and Thomas, R. D. and Zhaunerchyk, V. and Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 and Department of Physics, Albanova, Stockholm University, SE-106 91 Stockholm},
abstractNote = {Absolute cross sections for electron-impact dissociation of N{sub 2}D{sup +} producing N{sub 2}{sup +}, ND{sup +}, and N{sup +} ion fragments were measured in the 5- to 100-eV range using a crossed electron-ion beams technique. In the 5- to 20-eV region, in which dissociative excitation (DE) is the principal contributing mechanism, N{sub 2}{sup +} production dominates. The N{sub 2}{sup +} + D dissociation channel shows a large resonant-like structure in the DE cross section, as observed previously in electron impact dissociation of triatomic dihydride species [M. Fogle, E. M. Bahati, M. E. Bannister, S. H. M. Deng, C. R. Vane, R. D. Thomas, and V. Zhaunerchyk, Phys. Rev. A 82, 042720 (2010)]. In the dissociative ionization (DI) region, 20- to 100-eV, N{sub 2}{sup +}, ND{sup +}, and N{sup +} ion fragment production are comparable. The observance of the ND{sup +} and N{sup +} ion fragments indicate breaking of the N - N bond along certain dissociation channels.},
doi = {10.1103/PHYSREVA.84.032714},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}