J. Phys. Colloques
Volume 48, Numéro C9, Décembre 1987X-Ray and Inner-Shell Processes
|Page(s)||C9-379 - C9-382|
J. Phys. Colloques 48 (1987) C9-379-C9-382
ON X-RAY SPECTRAL LINES OF HIGH n RYDBERG TRANSITIONS IN Ar16+ OBSERVED FROM A TOKAMAK PLASMAE. KÄLLNE1, J. KÄLLNE1, J. DUBAU2, E.S. MARMAR3 and J.E. RICE3
1 JET Joint Undertaking, GB-Abingdon OX14 3EA, Great-Britain
2 Observatoire de Paris, 5, Place Janssen, F-92195 Meudon Cedex, France
3 MIT Plasma Fusion Center, Cambridge, MA 02139, U.S.A.
The He-like spectrum of 1s2 - 1snp transitions and satellites in Ar16+ have been measured from the plasma of the Alcator C tokamak. In the wavelength region of λ = 3.0 to 3.4 Å, three groups of satellite lines 1s22σ - 1s2σ nl are observed which accompany each of the resonance lines emanating from the upper orbitals from n = 4 to n = 10. Results of new calculations are presented and used for identification of the observed spectra and for discussion of line intensities and wavelengths. All satellite lines belonging to the high n states observed (n = 4 to n = 10) have been identified in the calculations.