Electron-Impact Dissociation of CD₃⁺ and CH₃⁺ Ions Producing CD₂⁺, CH⁺ and C⁺ Fragment Ions

Journal Article · Thu Jan 01 00:00:00 EST 2009 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.79.052703· OSTI ID:959446

Bahati Musafiri, Eric ^[1]; Vane, C Randy ^[1]; Bannister, Mark E ^[1]; Thomas, R. D. ^[2]; Zhaunerchyk, Vitali ^[2]

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1. ORNL
2. Stockholm University, Stockholm, Sweden

Using a crossed electron-ion beams method, we measured absolute cross sections for electron-impact dissociation of the CD₃⁺ molecular ions producing CD₂⁺ fragment ions and CH₃⁺ ions yielding CH⁺ and C⁺ fragment ions over a collision energy range from a few eV up to 100 eV. The total experimental uncertainties are about 12% at the maximum of the curves of cross sections (peak of the cross section, for the CH⁺ channel). The obtained results suggest important roles played by pre-dissociation of bound states in the production of both the CH⁺ and C⁺ fragment ions. Good agreement is found with other results reported for the CH⁺ fragment, but some differences are found for the CD₂⁺ and C⁺.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 959446
• Journal Information: Physical Review A, Vol. 79, Issue 5; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BOUND STATE
CROSS SECTIONS
DISSOCIATION
ENERGY RANGE
MOLECULAR IONS
PRODUCTION