Partial-ionization cross sections of a CO{sub 2} molecule due to impact of 10-26-keV electrons

Journal Article · Fri Oct 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.044702· OSTI ID:21452622

Bhatt, Pragya; Singh, Raj; Yadav, Namita; Shanker, R ^[1]

---

1. Atomic Physics Laboratory, Department of Physics, Banaras Hindu University, Varanasi 221005 (India)

Experimental data on total- and partial-ionization cross sections of ionic fragments of CO{sub 2} molecule produced by impact of 10-26-keV electrons are obtained on a crossed-beam apparatus in our laboratory. An ejected electron-produced ion-coincidence technique is employed together with a time-of-flight mass spectrometer for analysis of the ions. The six ionic fragments, CO{sub 2}{sup +}, CO{sup +}, CO{sub 2}{sup 2+}, O{sup +}, C{sup +}, and C{sup 2+}, resulting from dissociative ionization of the CO{sub 2} molecule are observed and identified; their relative ionization cross sections and branching ratios are determined as a function of impact energy. The binary-encounter Bethe model is found to overestimate the experimental data for total-ionization cross sections of the observed ions. No other experimental or theoretical data exist in the investigated energy range to make a direct comparison with the present results.

• OSTI ID: 21452622
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BRANCHING RATIO
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON IONS
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COBALT IONS
COLLISIONS
COMPARATIVE EVALUATIONS
CROSS SECTIONS
DIMENSIONLESS NUMBERS
DISSOCIATION
DYNAMIC MASS SPECTROMETERS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
EVALUATION
FERMIONS
IONIZATION
IONS
KEV RANGE
LEPTONS
MASS SPECTROMETERS
MEASURING INSTRUMENTS
MOLECULAR IONS
MOLECULE COLLISIONS
MOLECULES
OXIDES
OXYGEN COMPOUNDS
OXYGEN IONS
SPECTROMETERS
TIME-OF-FLIGHT MASS SPECTROMETERS
TIME-OF-FLIGHT SPECTROMETERS