skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effective collision strengths for optically allowed transitions among degenerate levels of hydrogenic ions with 2{<=}Z{<=}30

Abstract

The Coulomb-Born approximation is used to calculate electron-impact excitation collision strengths and effective collision strengths for optically allowed transitions among degenerate fine-structure levels of hydrogenic ions with 2{<=}Z{<=}30 and n{<=}5. Collision strengths are calculated over a wide range of energies up to E{sub j}/Z{sup 2}=10Ryd. Effective collision strengths are obtained over a wide temperature range up to 10{sup 8}K by integrating the collision strengths over a Maxwellian distribution of electron velocities.

Authors:
 [1];  [2]; ;  [1];  [2];  [1]
  1. Department of Applied Physics, Faculty of Engineering, University of Miyazaki, Miyazaki 889-2192 (Japan)
  2. Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)
Publication Date:
OSTI Identifier:
21417223
Resource Type:
Journal Article
Journal Name:
Atomic Data and Nuclear Data Tables
Additional Journal Information:
Journal Volume: 96; Journal Issue: 5; Other Information: DOI: 10.1016/j.adt.2010.02.001; PII: S0092-640X(10)00012-4; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0092-640X
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; BORN APPROXIMATION; ELECTRON BEAMS; EXCITATION; FINE STRUCTURE; HYDROGEN IONS; ION COLLISIONS; TEMPERATURE RANGE OVER 4000 K; APPROXIMATIONS; BEAMS; CALCULATION METHODS; CHARGED PARTICLES; COLLISIONS; ENERGY-LEVEL TRANSITIONS; IONS; LEPTON BEAMS; PARTICLE BEAMS; TEMPERATURE RANGE

Citation Formats

Hamada, K., Aggarwal, K.M., E-mail: K.Aggarwal@qub.ac.u, Akita, K., Igarashi, A., Keenan, F.P., and Nakazaki, S. Effective collision strengths for optically allowed transitions among degenerate levels of hydrogenic ions with 2{<=}Z{<=}30. United States: N. p., 2010. Web. doi:10.1016/j.adt.2010.02.001.
Hamada, K., Aggarwal, K.M., E-mail: K.Aggarwal@qub.ac.u, Akita, K., Igarashi, A., Keenan, F.P., & Nakazaki, S. Effective collision strengths for optically allowed transitions among degenerate levels of hydrogenic ions with 2{<=}Z{<=}30. United States. doi:10.1016/j.adt.2010.02.001.
Hamada, K., Aggarwal, K.M., E-mail: K.Aggarwal@qub.ac.u, Akita, K., Igarashi, A., Keenan, F.P., and Nakazaki, S. Wed . "Effective collision strengths for optically allowed transitions among degenerate levels of hydrogenic ions with 2{<=}Z{<=}30". United States. doi:10.1016/j.adt.2010.02.001.
@article{osti_21417223,
title = {Effective collision strengths for optically allowed transitions among degenerate levels of hydrogenic ions with 2{<=}Z{<=}30},
author = {Hamada, K. and Aggarwal, K.M., E-mail: K.Aggarwal@qub.ac.u and Akita, K. and Igarashi, A. and Keenan, F.P. and Nakazaki, S.},
abstractNote = {The Coulomb-Born approximation is used to calculate electron-impact excitation collision strengths and effective collision strengths for optically allowed transitions among degenerate fine-structure levels of hydrogenic ions with 2{<=}Z{<=}30 and n{<=}5. Collision strengths are calculated over a wide range of energies up to E{sub j}/Z{sup 2}=10Ryd. Effective collision strengths are obtained over a wide temperature range up to 10{sup 8}K by integrating the collision strengths over a Maxwellian distribution of electron velocities.},
doi = {10.1016/j.adt.2010.02.001},
journal = {Atomic Data and Nuclear Data Tables},
issn = {0092-640X},
number = 5,
volume = 96,
place = {United States},
year = {2010},
month = {9}
}