Published September 7, 2015 | Version v1
Journal article Metadata-only

Predominance of single vacancy production in the formation of Oxygen dication

Creators

  • 1. Institute de Física, Universidade Federal Fluminense, 24210-346, Niterói, RJ (Brazil)
  • 2. CEFET/RJ - Unidade Maracanã, 20271-110, Rio de Janeiro, RJ (Brazil)
  • 3. Institute de Física, Universidade Federal do Rio de Janeiro, 21941-972, Rio de Janeiro, RJ (Brazil)

Description

Absolute cross sections for O2++ production from O2 fragmentation by 30-400 eV electron impact were measured using the DETOF technique. This data is compared to the molecular orbitals ionization cross sections of O2, which were calculated using a simple and general procedure, and the fragmentation fractions arising from each molecular orbital were obtained. It was seen from the behaviour of the cross sections in this energy range that O2++ results mainly from single vacancy production followed by post-collisional Auger-like deexcitation. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/635/7/072015

Additional details

Identifiers

DOI
10.1088/1742-6596/635/7/072015;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
635
Journal Issue
7
Journal Page Range
[1 p.]
ISSN
1742-6596

Conference

Title
29. international conference on photonic, electronic, and atomic collisions
Acronym
ICPEAC2015
Dates
22-28 Jul 2015
Place
Toledo (Spain)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47103391
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COMPARATIVE EVALUATIONS; CROSS SECTIONS; DE-EXCITATION; ELECTRON-MOLECULE COLLISIONS; ELECTRONS; EV RANGE; FRAGMENTATION; MOLECULAR IONS; MOLECULAR ORBITAL METHOD; OXYGEN; OXYGEN IONS; TIME-OF-FLIGHT METHOD; VACANCIES
Descriptors DEC
CALCULATION METHODS; CHARGED PARTICLES; COLLISIONS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTRON COLLISIONS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVALUATION; FERMIONS; IONS; LEPTONS; MOLECULE COLLISIONS; NONMETALS; POINT DEFECTS