Electron-impact excitation of B+ using the R-matrix with pseudo-states method

We have carried out several R-matrix with pseudo-states (RMPS) calculations for the electron-impact excitation of B+. Maxwell-averaged effective collision strengths have been determined for excitations between the lowest 20 terms, including all those arising from the 2s3l and 2s4l configurations. A...

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Autores principales: Badnell, N.R., Griffin, D.C., Mitnik, D.M.
Formato: JOUR
Materias:
Electron energy levels
Fusion reactors
High temperature effects
Magnetic devices
Mathematical models
Numerical analysis
Electron impact excitation
Magnetic fusion reactors
Pseudo states method
Molecular physics
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09534075_v36_n7_p1337_Badnell
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09534075_v36_n7_p1337_Badnell
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spelling todo:paper_09534075_v36_n7_p1337_Badnell2023-10-03T15:50:58Z Electron-impact excitation of B+ using the R-matrix with pseudo-states method Badnell, N.R. Griffin, D.C. Mitnik, D.M. Electron energy levels Fusion reactors High temperature effects Magnetic devices Mathematical models Numerical analysis Electron impact excitation Magnetic fusion reactors Pseudo states method Molecular physics We have carried out several R-matrix with pseudo-states (RMPS) calculations for the electron-impact excitation of B+. Maxwell-averaged effective collision strengths have been determined for excitations between the lowest 20 terms, including all those arising from the 2s3l and 2s4l configurations. A comparison of results from 114 term and 134 term close-coupling (CC) RMPS calculations demonstrates the convergence in the pseudo-state expansion representing the continuum and high bound-states. Comparison of the 114CC RMPS results with those from a 20CC R-matrix calculation, using the same 114 term configuration interaction target, shows a reduction in the effective collision strengths by up to a factor of two at higher temperatures for transitions to n = 4. The modelling of spectral emission from boron, and from n = 4 terms in B+ in particular, is important for studying impurity influx in both current (TEXTOR) and future (ITER) magnetic fusion reactors. Fil:Mitnik, D.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09534075_v36_n7_p1337_Badnell
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Electron energy levels
Fusion reactors
High temperature effects
Magnetic devices
Mathematical models
Numerical analysis
Electron impact excitation
Magnetic fusion reactors
Pseudo states method
Molecular physics
spellingShingle Electron energy levels
Fusion reactors
High temperature effects
Magnetic devices
Mathematical models
Numerical analysis
Electron impact excitation
Magnetic fusion reactors
Pseudo states method
Molecular physics
Badnell, N.R.
Griffin, D.C.
Mitnik, D.M.
Electron-impact excitation of B+ using the R-matrix with pseudo-states method
topic_facet Electron energy levels
Fusion reactors
High temperature effects
Magnetic devices
Mathematical models
Numerical analysis
Electron impact excitation
Magnetic fusion reactors
Pseudo states method
Molecular physics
description We have carried out several R-matrix with pseudo-states (RMPS) calculations for the electron-impact excitation of B+. Maxwell-averaged effective collision strengths have been determined for excitations between the lowest 20 terms, including all those arising from the 2s3l and 2s4l configurations. A comparison of results from 114 term and 134 term close-coupling (CC) RMPS calculations demonstrates the convergence in the pseudo-state expansion representing the continuum and high bound-states. Comparison of the 114CC RMPS results with those from a 20CC R-matrix calculation, using the same 114 term configuration interaction target, shows a reduction in the effective collision strengths by up to a factor of two at higher temperatures for transitions to n = 4. The modelling of spectral emission from boron, and from n = 4 terms in B+ in particular, is important for studying impurity influx in both current (TEXTOR) and future (ITER) magnetic fusion reactors.
format JOUR
author Badnell, N.R.
Griffin, D.C.
Mitnik, D.M.
author_facet Badnell, N.R.
Griffin, D.C.
Mitnik, D.M.
author_sort Badnell, N.R.
title Electron-impact excitation of B+ using the R-matrix with pseudo-states method
title_short Electron-impact excitation of B+ using the R-matrix with pseudo-states method
title_full Electron-impact excitation of B+ using the R-matrix with pseudo-states method
title_fullStr Electron-impact excitation of B+ using the R-matrix with pseudo-states method
title_full_unstemmed Electron-impact excitation of B+ using the R-matrix with pseudo-states method
title_sort electron-impact excitation of b+ using the r-matrix with pseudo-states method
url http://hdl.handle.net/20.500.12110/paper_09534075_v36_n7_p1337_Badnell
work_keys_str_mv AT badnellnr electronimpactexcitationofbusingthermatrixwithpseudostatesmethod
AT griffindc electronimpactexcitationofbusingthermatrixwithpseudostatesmethod
AT mitnikdm electronimpactexcitationofbusingthermatrixwithpseudostatesmethod
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