Contribution Of Excited Hydrogen Atoms To Charge-exchange Excitation Of Impurities In Fusion Plasmas

Author

R. C. Isler
Ronald E. Olson, Missouri University of Science and TechnologyFollow

Abstract

Cross sections are calculated for charge transfer into excited states of C⁵⁺ and O⁷⁺ from collisions of C⁶⁺ and O⁸⁺ with hydrogen atoms in the n=2 and 3 levels. Effective emission cross sections that account for cascading is then derived for spectral lines emitted when the product ions decay. These are compared to the emission cross sections calculated for excitation by ground-state hydrogen. It is shown that in some circumstances the contribution from excited hydrogen atoms must be taken into account when visible lines are used to determine the oxygen or carbon density from charge-exchange spectroscopy in plasmas. Influences on Lyman-series spectra in the x-ray region are also discussed. © 1988 The American Physical Society.

Recommended Citation

R. C. Isler and R. E. Olson, "Contribution Of Excited Hydrogen Atoms To Charge-exchange Excitation Of Impurities In Fusion Plasmas," Physical Review A, vol. 37, no. 9, pp. 3399 - 3402, American Physical Society, Jan 1988.

The definitive version is available at https://doi.org/10.1103/PhysRevA.37.3399

Department(s)

Physics

International Standard Serial Number (ISSN)

1050-2947

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2023 American Physical Society, All rights reserved.

Publication Date

01 Jan 1988