Charge-Exchange-Produced K -shell X-Ray Emission from Ar¹⁶⁺ in a Tokamak Plasma with Neutral-Beam Injection

P. Beiersdorfer
M. Bitter
M. Marion
Ronald E. Olson, Missouri University of Science and Technology

This document has been relocated to

There were 3 downloads as of 28 Jun 2016.


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.