Electron impact excitation of Kr XXVIII

Journal Article · Sun May 15 00:00:00 EDT 2011 · Atomic Data and Nuclear Data Tables

DOI:https://doi.org/10.1016/j.adt.2010.12.003· OSTI ID:21499657

Keenan, F P ^[1]; Lawson, K D ^[2]

---

1. Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland (United Kingdom)
2. EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB (United Kingdom)

Collision strengths ({Omega}) are calculated for all 6328 transitions among the lowest 113 levels belonging to the 2s{sup 2}2p{sup 5},2s2p{sup 6},2s{sup 2}2p{sup 4}3l,2s2p{sup 5}3l, and 2p{sup 6}3l configurations of fluorine-like krypton, Kr XXVIII, using the Dirac Atomic R-matrix Code. All partial waves with angular momentum J{<=}40 are included, sufficient for the convergence of {Omega} for forbidden transitions. For allowed transitions a top-up is employed to obtain converged values of {Omega} up to an energy of 400 Ryd. Resonances in the thresholds region are resolved on a narrow energy mesh, and results for effective collision strengths (Y) are obtained after averaging the values of {Omega} over a Maxwellian distribution of electron velocities. Values of Y are reported over a wide temperature range below 10{sup 7.1}K, and the accuracy of the results is assessed. In addition, effective collision strengths are listed for the temperature range 7.0{<=}logT{sub e}(K){<=}9.0, obtained from non-resonant collision strengths generated with the FAC code.

• OSTI ID: 21499657
• Journal Information: Atomic Data and Nuclear Data Tables, Vol. 97, Issue 3; Other Information: DOI: 10.1016/j.adt.2010.12.003; PII: S0092-640X(10)00094-X; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0092-640X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
CONVERGENCE
ELECTRON BEAMS
ELECTRON COLLISIONS
EXCITATION
FORBIDDEN TRANSITIONS
KRYPTON
PARTIAL WAVES
R MATRIX
TEMPERATURE RANGE 0000-0013 K
BEAMS
COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
LEPTON BEAMS
MATRICES
NONMETALS
PARTICLE BEAMS
RARE GASES
TEMPERATURE RANGE