Charge exchange produced K-shell x-ray emission from Ar16+ in a tokamak plasma with neutral beam injection

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High-resolution spectroscopy of hot tokamak plasma seeded with argon ions and interacting with an energetic, short-pulse neutral hydrogen beam was used to obtain the first high-resolution K-shell x-ray spectrum formed solely by charge exchange. The observed K-shell emission of Ar{sup 16+} 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.

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Beiersdorfer, P; Bitter, M; Marion, M & Olson, R E December 27, 2004.

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High-resolution spectroscopy of hot tokamak plasma seeded with argon ions and interacting with an energetic, short-pulse neutral hydrogen beam was used to obtain the first high-resolution K-shell x-ray spectrum formed solely by charge exchange. The observed K-shell emission of Ar{sup 16+} 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.

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PDF-file: 16 pages; size: 0.2 Mbytes

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  • Journal Name: Physical Review A; Journal Volume: A 72

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  • Report No.: UCRL-JRNL-208780
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 875921
  • Archival Resource Key: ark:/67531/metadc876655

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  • December 27, 2004

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 9:13 p.m.

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Beiersdorfer, P; Bitter, M; Marion, M & Olson, R E. Charge exchange produced K-shell x-ray emission from Ar16+ in a tokamak plasma with neutral beam injection, article, December 27, 2004; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc876655/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.