Ionization of excited hydrogen atoms by collisions with bare ions

Journal Article · Wed Nov 30 23:00:00 EST 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.50.4945· OSTI ID:6804313

Igarashi, A; Shirai, T ^[1]

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1. Department of Reactor Engineering, Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-11 (Japan)

Energy and charge dependence of total cross section for ionization of the excited states with [ital n][le]5 of hydrogen, in collisions with the bare ions up to O[sup 8+], has been investigated theoretically by using the continuum distorted wave--eikonal initial state (CDW-EIS) approximation. In contrast with the similar calculations of Fainstein [ital et] [ital al]. [J. Phys. B 23, 1481 (1990)], the present results show that the CDW-EIS approximation becomes identical to the Born approximation at high energies, even in the ionization of excited states. A comparison is made between the present results and other theoretical predictions.

• OSTI ID: 6804313
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:6; ISSN PLRAAN; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAM INJECTION HEATING
BORN APPROXIMATION
CHARGE STATES
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DISTORTED WAVE THEORY
EIKONAL APPROXIMATION
ELEMENTS
ENERGY DEPENDENCE
ENERGY LEVELS
EXCITED STATES
HEATING
HYDROGEN
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
NONMETALS
OXYGEN IONS
PLASMA HEATING
TOTAL CROSS SECTIONS