Dielectronic capture processes in highly charged uranium ions

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.6526· OSTI ID:6045444

Pindzola, M S; Badnell, N R ^[1]

---

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

Dielectronic capture processes in highly charged uranium ions are studied in the isolated-resonance, distorted-wave approximation. A fully relativistic Dirac-Fock method is employed to calculate resonant transfer and excitation cross sections for collisions of U{sup 90+} and U{sup 89+} with H{sub 2} and dielectronic recombination cross sections associated with the 2{ital p}{r arrow}2{ital s} stabilizing transition of U{sup 89+}. A semirelativistic method based on the previously developed AUTOSTRUCTURE code is found to give cross sections in good agreement with the Dirac-Fock method in all cases. When the Dirac-Fock method is further extended to include the effect of the two-body Breit interaction, substantial changes are found in certain low-energy cross sections associated with {ital K}-shell resonant transfer and excitation, but little change is found in the {Delta}{ital n}=0 dielectronic recombination cross sections.

• DOE Contract Number: FG05-86ER53217
• OSTI ID: 6045444
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 42:11; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
A CODES
CAPTURE
CHARGED PARTICLES
COLLISIONS
COMPUTER CODES
CROSS SECTIONS
DISTORTED WAVE THEORY
ELECTRON CAPTURE
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY RANGE
HYDROGEN
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
MOLECULE COLLISIONS
MULTICHARGED IONS
NONMETALS
RECOMBINATION
RELATIVISTIC RANGE
URANIUM IONS