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X-ray spectral diagnostics for satellite lines of H-like Mg ions measured by a high resolution spectrometer

Published online by Cambridge University Press:  01 July 2004

TAKAKO KATO ,
NORIMASA YAMAMOTO  and
FRANK B. ROSMEJ
TAKAKO KATO
Affiliation:
National Institute for Fusion Science, Toki, Japan
NORIMASA YAMAMOTO
Affiliation:
Rikkyo University, Tokyo, Japan
FRANK B. ROSMEJ
Affiliation:
Université de Provence et CNRS, Centre de Saint Jérôme, PIIM, UMR, Marseille cedex, France
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Abstract

X-ray spectra of H-like Mg ions produced in a laser plasma have been measured by space-resolved high-resolution spectroscopy. We identified satellite lines near Lyα lines, 2lnl′ − 1snl′ + hν for n = 2, 3, and 4. We construct a collisional radiative model including the doubly excited states for the intensity ratios of satellite lines. We use atomic data calculated by different methods for satellite lines and compare the results. We derive the electron temperature and density of the laser-produced plasma by a new technique using intensity ratios of only satellite lines. This technique is useful because the Lyα lines are often affected by opacity.

Keywords

H-like Mg ionsPlasma diagnosticsSatellite lineX-ray spectra
Type
Research Article
Information
Laser and Particle Beams , Volume 22 , Issue 3 , July 2004 , pp. 245 - 251
Copyright
© 2004 Cambridge University Press

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References

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