Charge exchange and x-ray emission cross sections for multiply charged ions colliding with H{sub 2}O

Journal Article · Fri Feb 15 00:00:00 EST 2008 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.77.022709· OSTI ID:21140492

Otranto, S ^[1]; Olson, R E ^[2]

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1. CONICET and Dto. de Fisica, Universidad Nacional del Sur, 8000 Bahia Blanca (Argentina)
2. Physics Department, University of Missouri-Rolla, Rolla, Missouri 65401 (United States)

Total and state selective nl-electron capture cross sections are presented for highly charged ions Z=4-10, 14, 18, and 26 colliding with water molecules. The energy range investigated was from 10 eV/amu (v=0.02 a.u.) to 100 keV/amu (v=2 a.u.). An initialization for the 1B1 and 3A1 orbitals of the water molecule is introduced based on the one center expansion of Moccia and compared to our previous studies based on a hydrogenic approximation within the microcanonical ensemble. The Z dependence of the calculated total cross sections is in reasonable agreement with the recent data of Mawhorter et al. [Phys. Rev. A 75, 032704 (2007)] and is improved over previous results. The energy dependence of the n- and l-level populations is investigated. The K-shell x-ray emission cross sections are determined by using the calculated state-selective electron capture results as input and then applying hydrogenic branching and cascading values for the photon emission. Our results compare favorably with experimental data from the KVI-Groningen, Jet Propulsion Laboratory and Lawrence Livermore National Laboratory groups.

• OSTI ID: 21140492
• Journal Information: Physical Review. A, Vol. 77, Issue 2; Other Information: DOI: 10.1103/PhysRevA.77.022709; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CATIONS
CHARGE EXCHANGE
COMPARATIVE EVALUATIONS
ELECTRON CAPTURE
EMISSION SPECTRA
EV RANGE 10-100
EV RANGE 100-1000
ION-MOLECULE COLLISIONS
K SHELL
KEV RANGE 01-10
KEV RANGE 10-100
LAWRENCE LIVERMORE NATIONAL LABORATORY
MULTICHARGED IONS
OXYGEN
PHOTON EMISSION
TOTAL CROSS SECTIONS
WATER
X RADIATION
X-RAY SPECTRA