Highly charged ion X-rays from Electron-Cyclotron Resonance Ion Sources
Paul Indelicato, S. Boucard, D. S. Covita, D. Gotta, A. Gruber, A. Hirtl, H. Fuhrmann, E. -O. Le Bigot, S. Schlesser, J. M. F. Dos Santos, L. M. Simons, L. Stingelin, M. Trassinelli, J. Veloso, A. Wasser, J. Zmeskal
Abstract
Radiation from the highly-charged ions contained in the plasma of Electron-Cyclotron Resonance Ion Sources constitutes a very bright source of X-rays. Because the ions have a relatively low kinetic energy (≈ 1 eV) transitions can be very narrow, containing only small Doppler broadening. We describe preliminary accurate measurements of two and three-electron ions with Z=16--18. We show how these measurement can test sensitively many-body relativistic calculations or can be used as X-ray standards for precise measurements of X-ray transitions in exotic atoms.
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