Electron-impact ionization of B+

J. C. Berengut; S. D. Loch; M. S. Pindzola; C. P. Ballance; D. C. Griffin; M. Fogle; M. E. Bannister

doi:10.1103/PhysRevA.78.012704

Electron-impact ionization of B+

J. C. Berengut, S. D. Loch, M. S. Pindzola, C. P. Ballance, D. C. Griffin, M. Fogle, M. E. Bannister

School of Mathematics and Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Electron-impact ionization cross sections are calculated for the ground and metastable states of B+. Com- parisons between perturbative distorted-wave and nonperturbative close-coupling calculations find reductions in the direct ionization cross sections due to long-range electron correlation effects of approximately 10% for the ground state and approximately 15% for the metastable state. Previous crossed-beams experiments, with a metastable to ground ratio of between 50% and 90%, are found to be in reasonable agreement with metastable state close-coupling results. New crossed-beams experiments, with a metastable to ground ratio of only 9%, are found to be in reasonable agreement with ground state close-coupling results. Combined with previous work on neutral B and B2+, the nonperturbative close-coupling calculations provide accurate ionization cross sections for the study of edge plasmas in controlled fusion research.

Original language	English
Journal	Physical Review A (Atomic, Molecular, and Optical Physics)
Volume	78
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.78.012704
Publication status	Published - 2008

Access to Document

10.1103/PhysRevA.78.012704

http://www.mendeley.com/research/electronimpact-ionization-b

Cite this

@article{f6a1a8ae3d414478b0f0d488a1e98b89,

title = "Electron-impact ionization of B+",

abstract = "Electron-impact ionization cross sections are calculated for the ground and metastable states of B+. Com- parisons between perturbative distorted-wave and nonperturbative close-coupling calculations find reductions in the direct ionization cross sections due to long-range electron correlation effects of approximately 10% for the ground state and approximately 15% for the metastable state. Previous crossed-beams experiments, with a metastable to ground ratio of between 50% and 90%, are found to be in reasonable agreement with metastable state close-coupling results. New crossed-beams experiments, with a metastable to ground ratio of only 9%, are found to be in reasonable agreement with ground state close-coupling results. Combined with previous work on neutral B and B2+, the nonperturbative close-coupling calculations provide accurate ionization cross sections for the study of edge plasmas in controlled fusion research.",

author = "Berengut, {J. C.} and Loch, {S. D.} and Pindzola, {M. S.} and Ballance, {C. P.} and Griffin, {D. C.} and M. Fogle and Bannister, {M. E.}",

year = "2008",

doi = "10.1103/PhysRevA.78.012704",

language = "English",

volume = "78",

journal = "Physical Review A (Atomic, Molecular, and Optical Physics)",

issn = "1050-2947",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Electron-impact ionization of B+

AU - Berengut, J. C.

AU - Loch, S. D.

AU - Pindzola, M. S.

AU - Ballance, C. P.

AU - Griffin, D. C.

AU - Fogle, M.

AU - Bannister, M. E.

PY - 2008

Y1 - 2008

N2 - Electron-impact ionization cross sections are calculated for the ground and metastable states of B+. Com- parisons between perturbative distorted-wave and nonperturbative close-coupling calculations find reductions in the direct ionization cross sections due to long-range electron correlation effects of approximately 10% for the ground state and approximately 15% for the metastable state. Previous crossed-beams experiments, with a metastable to ground ratio of between 50% and 90%, are found to be in reasonable agreement with metastable state close-coupling results. New crossed-beams experiments, with a metastable to ground ratio of only 9%, are found to be in reasonable agreement with ground state close-coupling results. Combined with previous work on neutral B and B2+, the nonperturbative close-coupling calculations provide accurate ionization cross sections for the study of edge plasmas in controlled fusion research.

AB - Electron-impact ionization cross sections are calculated for the ground and metastable states of B+. Com- parisons between perturbative distorted-wave and nonperturbative close-coupling calculations find reductions in the direct ionization cross sections due to long-range electron correlation effects of approximately 10% for the ground state and approximately 15% for the metastable state. Previous crossed-beams experiments, with a metastable to ground ratio of between 50% and 90%, are found to be in reasonable agreement with metastable state close-coupling results. New crossed-beams experiments, with a metastable to ground ratio of only 9%, are found to be in reasonable agreement with ground state close-coupling results. Combined with previous work on neutral B and B2+, the nonperturbative close-coupling calculations provide accurate ionization cross sections for the study of edge plasmas in controlled fusion research.

U2 - 10.1103/PhysRevA.78.012704

DO - 10.1103/PhysRevA.78.012704

M3 - Article

SN - 1050-2947

VL - 78

JO - Physical Review A (Atomic, Molecular, and Optical Physics)

JF - Physical Review A (Atomic, Molecular, and Optical Physics)

IS - 1

ER -

Electron-impact ionization of B+

Abstract

Access to Document

Fingerprint

Cite this