Electron impact excitation of beryllium
- 28 October 1996
- journal article
- letter
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 29 (20) , L769-L772
- https://doi.org/10.1088/0953-4075/29/20/008
Abstract
Results from an R-matrix with pseudo-states (RMPS) calculation are presented for electron impact excitation of the transitions in beryllium for incident energies from threshold up to 5 Ryd. At energies above the ionization threshold (0.685 Ryd), the representation of target continuum states is found to be crucial for accurate results to be obtained. A significant reduction, of up to a factor of two compared to the results of Fon et al, is found for the cross sections in this energy range. This result has important implications regarding the use of currently available e - Be cross section data for plasma diagnostics.Keywords
This publication has 10 references indexed in Scilit:
- Convergentmatrix with pseudostates calculation for-He collisionsPhysical Review A, 1996
- Electron - atom scattering at low and intermediate energies using a pseudo-state/R-matrix basisJournal of Physics B: Atomic, Molecular and Optical Physics, 1996
- Farm — A flexible asymptotic R-matrix packageComputer Physics Communications, 1995
- Electron-impact excitation of complex atoms and ionsJournal of Physics B: Atomic, Molecular and Optical Physics, 1994
- Spectral emission from beryllium in plasmasPlasma Physics and Controlled Fusion, 1992
- Electron impact excitation of n=3 and 4 states of BeJournal of Physics B: Atomic, Molecular and Optical Physics, 1992
- Electron-atom scattering at intermediate energiesJournal of Physics B: Atomic and Molecular Physics, 1981
- The R-Matrix Theory of Atomic ProcessesPublished by Elsevier ,1976
- CIV3 — A general program to calculate configuration interaction wave functions and electric-dipole oscillator strengthsComputer Physics Communications, 1975
- On the energy difference between the lP and 3P states of the beryllium isoelectronic sequenceInternational Journal of Quantum Chemistry, 1971