Contributions of autoionizing resonances to the n = 2-2 electron collisional excitation rates for Be-like ions
The contributions of autoionizing resonances to the electron-impact excitation-rate coefficients for the n = 2 to n = 2 transitions in Be-like ions have been evaluated for six ions with atomic numbers Z = 30, 34, 36, 42, 47, and 54. The calculations were carried out in the isolated-resonance approximation. Interference between direct and resonance channels was neglected. The detailed Auger and radiative rates were computed using the multiconfiguration Dirac-Fock model. Results for the 45 transitions among 10 states from 1s/sup 2/2l2l' configurations are listed. For electric-dipole-allowed transitions, the contributions from the autoionizing resonances are quite small. However, the autoionizing resonances can enhance the excitation rates by a factor of 2 to 4 for dipole-forbidden transitions. copyright 1989 Academic Press, Inc.
- Research Organization:
- High Temperature Physics Division, University of California, Lawrence Livermore National Laboratory, Livermore, California 94550
- OSTI ID:
- 6457124
- Journal Information:
- At. Data Nucl. Data Tables; (United States), Journal Name: At. Data Nucl. Data Tables; (United States) Vol. 41:1; ISSN ADNDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AUGER EFFECT
AUTOIONIZATION
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ENERGY-LEVEL TRANSITIONS
EXCITATION
ION COLLISIONS
IONIZATION
IONS
KRYPTON IONS
MOLYBDENUM IONS
SELENIUM IONS
SILVER IONS
XENON IONS
ZINC IONS