Line ratios and wavelengths of helium-like argon n=2 satellite transitions and 
resonance lines

Biedermann, C.; Radtke, R.; Fournier, K.

doi:10.1016/S0168-583X(02)01973-0

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Line ratios and wavelengths of helium-like argon n=2 satellite transitions and resonance lines

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Biedermann, C.
Plasma Diagnostics Group (HUB), Max Planck Institute for Plasma Physics, Max Planck Society;

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Radtke, R.
Plasma Diagnostics Group (HUB), Max Planck Institute for Plasma Physics, Max Planck Society;

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Biedermann, C., Radtke, R., & Fournier, K. (2003). Line ratios and wavelengths of helium-like argon n=2 satellite transitions and resonance lines. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 205, 255-259. doi:10.1016/S0168-583X(02)01973-0.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-3EF0-3

Abstract

The characteristic X-ray emission from helium-like argon was investigated as a mean to diagnose hot plasmas. We have measured the radiation from n=2-1 parent lines and from KLn dielectronic recombination satellites with high wavelength resolution as function of the excitation energy using the Berlin Electron Beam Ion Trap. Values of wavelength relative to the resonance and forbidden line are tabulated and compared with references. The line intensity observed over a wide range of excitation energies is weighted with a Maxwellian electron-energy distribution to analyze line ratios as function of plasma temperature. Line ratios (j+z)/w and k/w compare nicely with theoretical predictions and demonstrate their applicability as temperature diagnostic. The ratio z/(x+y) shows not to depend on the electron density.