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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Detalles Bibliográficos
Autor principal:	Mitnik, Dario Marcelo
Publicado:	2003
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:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v36_n7_p1337_Badnell http://hdl.handle.net/20.500.12110/paper_09534075_v36_n7_p1337_Badnell
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09534075_v36_n7_p1337_Badnell
record_format	dspace
spelling	paper:paper_09534075_v36_n7_p1337_Badnell2023-06-08T15:55:13Z Electron-impact excitation of B+ using the R-matrix with pseudo-states method Mitnik, Dario Marcelo 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. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v36_n7_p1337_Badnell 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 Mitnik, Dario Marcelo 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.
author	Mitnik, Dario Marcelo
author_facet	Mitnik, Dario Marcelo
author_sort	Mitnik, Dario Marcelo
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
publishDate	2003
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09534075_v36_n7_p1337_Badnell http://hdl.handle.net/20.500.12110/paper_09534075_v36_n7_p1337_Badnell
work_keys_str_mv	AT mitnikdariomarcelo electronimpactexcitationofbusingthermatrixwithpseudostatesmethod
_version_	1768544420145135616

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

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