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Electron-Impact Total Ionization Cross Sections of Molecular Ions

Journal Article · · Journal of Research of the National Institute of Standards and Technology
DOI:https://doi.org/10.6028/jres.105.032· OSTI ID:1628742
 [1];  [2];  [3]
  1. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); DOE/OSTI
  2. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  3. Howard Univ., Washington, DC (United States)
+ Show Author Affiliations
The Binary-Encounter-Bethe (BEB) model for electron-impact total ionization cross sections of neutral molecules has been modified for molecular positive ions. The total ionization cross sections for H$$^+_2$$, N$$^+_2$$, CD+, and CO+ from the modified BEB formula are compared to available experimental data. The theory is in good agreement with experimental data on H$$^+_2$$, N$$^+_2$$, and CD+, but the experimental data by Belic et al. on N$$^+_2$$, and CO+ are lower than the theory. The large difference between the theory and experiment on CO+ is a strong indication of the dominance of the dissociative ionization channel, CO+ → C++O+, which was not included in the experiment.
Research Organization:
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI ID:
1628742
Journal Information:
Journal of Research of the National Institute of Standards and Technology, Journal Name: Journal of Research of the National Institute of Standards and Technology Journal Issue: 2 Vol. 105; ISSN 1044-677X
Publisher:
National Institute of Standards (NIST)Copyright Statement
Country of Publication:
United States
Language:
English

References (1)

Binary-encounter-dipole model for electron-impact ionization journal November 1994

Cited By (7)

An overview of the BEB method for electron-impact ionization of atoms and molecules journal January 2005
Single differential electron impact ionization cross sections in the binary-encounter-Bethe approximation for the low binding energy regime journal August 2015
A global (volume averaged) model of a nitrogen discharge: I. Steady state journal July 2009
Electron– and positron–molecule scattering: development of the molecular convergent close-coupling method journal May 2017
Binary-encounter dipole model for positron-impact direct ionization journal December 2019
Extension of the binary-encounter-dipole model to relativistic incident electrons journal October 2000
Electron scattering from the molecular hydrogen ion and its isotopologues journal August 2014

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Related Subjects

47 OTHER INSTRUMENTATION
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
electron-impact ionization
instruments & instrumentation
molecular ion
physics
total ionization cross sections