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Title: Electron-Impact Dissociation of CH 2 + Ions: Measurement of CH + and C + Fragment Ions

Abstract

Absolute cross sections for electron-impact dissociation of CH 2 + producing CH + and C + fragment ions were measured in the 3-100 eV range using a crossed electron-ion beams technique with total uncertainties of about 11% near the cross section peak. The cross sections are nearly identical for energies above 15 eV, but they are dramatically different at lower energies. The CH + channel exhibits a strong peak rising from an observed threshold of about 6 eV; the C+ channel is relatively flat down to the lowest measured energy. Ionization cross sections for the CH 2 + ion are also presented.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
930893
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review A; Journal Volume: 75; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
Electron-Impact Dissociation

Citation Formats

Vane, C Randy, Bahati Musafiri, Eric, Bannister, Mark E, and Thomas, Richard D. Electron-Impact Dissociation of CH2+ Ions: Measurement of CH+ and C+ Fragment Ions. United States: N. p., 2007. Web. doi:10.1103/PhysRevA.75.052715.
Vane, C Randy, Bahati Musafiri, Eric, Bannister, Mark E, & Thomas, Richard D. Electron-Impact Dissociation of CH2+ Ions: Measurement of CH+ and C+ Fragment Ions. United States. doi:10.1103/PhysRevA.75.052715.
Vane, C Randy, Bahati Musafiri, Eric, Bannister, Mark E, and Thomas, Richard D. Mon . "Electron-Impact Dissociation of CH2+ Ions: Measurement of CH+ and C+ Fragment Ions". United States. doi:10.1103/PhysRevA.75.052715.
@article{osti_930893,
title = {Electron-Impact Dissociation of CH2+ Ions: Measurement of CH+ and C+ Fragment Ions},
author = {Vane, C Randy and Bahati Musafiri, Eric and Bannister, Mark E and Thomas, Richard D},
abstractNote = {Absolute cross sections for electron-impact dissociation of CH2+ producing CH+ and C+ fragment ions were measured in the 3-100 eV range using a crossed electron-ion beams technique with total uncertainties of about 11% near the cross section peak. The cross sections are nearly identical for energies above 15 eV, but they are dramatically different at lower energies. The CH+ channel exhibits a strong peak rising from an observed threshold of about 6 eV; the C+ channel is relatively flat down to the lowest measured energy. Ionization cross sections for the CH2+ ion are also presented.},
doi = {10.1103/PhysRevA.75.052715},
journal = {Physical Review A},
number = 5,
volume = 75,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}