Excitation of N V by electron impact
- 21 June 1976
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 9 (9), 1461-1469
- https://doi.org/10.1088/0022-3700/9/9/011
Abstract
Inelastic electron impact cross sections are calculated for N V at energies between 1.0 and 16.0 Ryd in a close-coupling expansion over the 2s, 2p, 3s, 3p and 3d states of the ion. The close-coupling method is compared with the unitarized Coulomb-Born approximation and a distorted-wave calculation. Three additional pseudostates labelled 4s, 4p and 4d are included in the close-coupling expansion and are found to be unimportant. The authors attempt to establish the range of validity for the Coulomb-Born method at the given energies. In addition, results are compared with the values obtained by other investigators with particular emphasis on the 1s22s to 1s22p and 1s22s to 1s23p excitation cross sections which play an important role in determining temperatures of hot plasmas and the solar corona. The rate coefficients for 2s to nl transitions agree within experimental error with those of Boland et al. (1970) and Kunze and Johnston (1971).Keywords
This publication has 14 references indexed in Scilit:
- Calculated collision strengths for electron impact excitation of NVJournal of Physics B: Atomic and Molecular Physics, 1975
- Excitation of Nv by electron impactJournal of Physics B: Atomic and Molecular Physics, 1974
- Electron impact excitation and ionization of N4+Nuclear Instruments and Methods, 1973
- Collision strengths for electron excitation of highly ionized, complex atomsJournal of Physics B: Atomic and Molecular Physics, 1971
- Experimental Rate Coefficients for Collisional Excitation of Lithiumlike IonsPhysical Review A, 1971
- Laboratory measurements of excitation coefficients for five transitions in nitrogen VJournal of Physics B: Atomic and Molecular Physics, 1970
- A programme for calculating atomic structuresJournal of Physics B: Atomic and Molecular Physics, 1969
- Wave propagation through an assembly of spheres I. The Greenian method of the theory of metalsProceedings of the Physical Society, 1966
- Excitation of N V by electron impactProceedings of the Physical Society, 1966
- A spectroscopic determination of electron temperature in a high temperature plasmaProceedings of the Physical Society, 1964