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Kα radiation from low charge chlorine heated by an ion beam for cold dense plasma diagnostics

Published online by Cambridge University Press:  15 March 2011

Tohru Kawamura ,
Kazuhiko Horioka  and
Fumihiro Koike
Tohru Kawamura*
Affiliation:
Department of Energy Sciences, Tokyo Institute of Technology, Kanagawa, Japan
Kazuhiko Horioka
Affiliation:
Department of Energy Sciences, Tokyo Institute of Technology, Kanagawa, Japan
Fumihiro Koike
Affiliation:
Physics Laboratory, School of Medicine, Kitasato University, Kanagawa, Japan
*
Address correspondence and reprint request to: Tohru Kawamura, Department of Energy Sciences, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan. E-mail: kawamura@es.titech.ac.jp
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Abstract

Kα radiation from low charge chlorine is examined for cold dense plasma diagnostics. A relativistic atomic structure calculation shows that the transition energies of Kα lines are slightly shifted to a higher-energy side according to the degree of M-shell ionization. Total spectral shift from Cl+ Kα lines up to those with a fully stripped M-shell is about 10 eV. With an assumption that collisional-radiative-equilibrium is valid, spectral calculations were carried out for a C2H3Cl-plasma heated by an ion beam, and clear deformation among spectral line-shapes is found in the range of the electron temperatures of ≤~ 30 eV. Contribution to the composite spectra of Kα lines with an excited electron in the outer-shell is also briefly discussed. Cl-Kα lines with M-shell electrons can be expected to give us distinct understandings for energy deposition by an ion beam in cold dense plasma.

Keywords

DiagnosticsEnergy depositionHeavy ion fusionKα radiationK-shell ionizationM-shell electron
Type
Research Article
Information
Laser and Particle Beams , Volume 29 , Issue 1 , March 2011 , pp. 135 - 140
Copyright
Copyright © Cambridge University Press 2011

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