Abstract

High-resolution spectroscopy of a hot tokamak plasma seeded with argon ions and interacting with an energetic, short-pulse neutral hydrogen beam was used to obtain a high-resolution K -shell x-ray spectrum formed solely by charge exchange. The observed K -shell emission of Ar16+ is dominated by the intercombination and forbidden lines, providing clear signatures of charge exchange. Results from an ab initio atomic cascade model provide excellent agreement, validating a semiclassical approach for calculating charge-exchange cross sections.

Department(s)

Physics

Sponsor(s)

Lawrence Livermore National Laboratory
United States. Department of Energy

Keywords and Phrases

Charge Exchange; Charge-Exchange Cross Sections; High Resolution Spectroscopy

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2005 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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