K -shell resonant transfer and excitation in calcium ions

Journal Article · Sun Jul 01 04:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.209· OSTI ID:6506463

Badnell, N R ^[1]

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1. Department of Physics, Auburn University, Auburn, AL (USA)

We have calculated {ital K}-shell cross sections for the process of resonant transfer excitation followed by x-ray stabilization (RTEX) in collisions of Ca{sup {ital q}+} ({ital q}=10--12,16--19) ions with H{sub 2}. Our {ital KLn} intermediate-coupling results are in excellent agreement with the experimental results of Tanis {ital et} {ital al}. (Phys. Rev. A 34, 2534 (1986)) for {ital q}=16--18, particularly when supplemented by our {ital LS}-coupling results for the {ital KMn} transitions. The comparison for {ital q}=19 is hampered by the nonresonant background, but our results are consistent with experiment. Our {ital LS}-coupling results for {ital KLn}-plus-{ital KMn} transitions are in good agreement with experiment for {ital q}=11 and 12. But for {ital q}=10 our {ital KMn} RTEX cross sections are much smaller than the sparse experimental results, indicating a large nonresonant experimental background.

• DOE Contract Number: FG05-86ER53217
• OSTI ID: 6506463
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 42:1; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CALCIUM IONS
CHARGED PARTICLES
COLLISIONS
ELECTROMAGNETIC RADIATION
ELECTRON TRANSFER
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
GASES
HYDROGEN
IMPULSE APPROXIMATION
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONIZING RADIATIONS
IONS
ISOELECTRONIC ATOMS
K SHELL
MOLECULE COLLISIONS
NEON
NONMETALS
RADIATIONS
RARE GASES
RESONANCE
X RADIATION