Electronic temperatures, densities and plasma X-ray emission of a 14.5 GHz Electron-Cyclotron Resonance Ion Source

Abstract

We have performed a systematic study of the Bremsstrahlung emission from the electrons in the plasma of a commercial 14.5 GHz Electron-Cyclotron Resonance Ion Source. The electronic spectral temperature and the product of ionic and electronic densities of the plasma are measured by analyzing the Bremsstrahlung spectra recorded for several rare gases (Ar, Kr, Xe) as a function of the injected power. Within our uncertainty, we find an average temperature of ? 48 keV above 100W, with a weak dependency on the injected power and gas composition. Charge state distributions of extracted ion beams have been determined as well, providing a way to disentangle the ionic density from the electronic density. Moreover X-ray emission from highly charged argon ions in the plasma has been observed with a high-resolution mosaic crystal spectrometer, demonstrating the feasibility for high-precision measurements of transition energies of highly charged ions, in particular of the magnetic dipole (M1) transition of He-like of argon ions.

References in corpus (2)

• Effect of pulse duration on the x-ray emission from Ar clusters in intense laser fields
• 2E1 Ar17+ decay and conventional radioactive sources to determine efficiency of semiconductor detectors

Cited by in corpus (11)

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• Magnetic properties changes of MnAs thin films irradiated with highly charged ions
• Photoionization of tungsten ions: experiment and theory for W${}^{4+}$
• Low energy Ne ion beam induced-modifications of magnetic properties in MnAs thin films
• Hints on the origin of the thermal hysteresis suppression in giant magnetocaloric thin films irradiatied with highly charged ions
• The Electrostatic Ion Beam Trap : a mass spectrometer of infinite mass range
• Mastering disorder in a first-order transition by ion irradiation
• A vacuum double-crystal spectrometer for reference-free highly charged ions X-ray spectroscopy