Dielectronic satellite spectra of hydrogenlike titanium (Ti XXII)

Details Dielectronic satellite spectra of hydrogenlike titanium (Ti XXII) Dielectronic satellite spectra of hydrogenlike titanium (Ti XXII)

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrva..29..661b&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 29, Feb. 1984, p. 661-674.

Physics

General Physics

66

Lyman Alpha Radiation, Metal Ions, Plasma Diagnostics, Plasma Spectra, Resonance Lines, Titanium, Tokamak Devices, Atomic Spectra, Autoionization, Plasma Jets, Plasma Temperature, Recombination Coefficient, Transition Probabilities

Scientific paper

Dielectronic-satellite spectra of hydrogenlike titanium Ti XXII have been observed from PLT tokamak plasmas and have been used for a detailed comparison with the theoretical results obtained from the Z-expansion method and from a computer program. The results from the Z-expansion method are in excellent agreement with the experimental data except for minor discrepancies between theoretical and experimental wavelengths of 0.0003 A for the n=2 satellites and 0.0001 A for the separation of the Lyman-alpha-one and Lyman-alpha-two lines. The latter discrepancy is removed if the Lamb shift and relativistic effects of order alpha to the fourth power are taken into account. For the program, the discrepancies for the n=2 satellites are only slightly larger (about 0.0009 angstroms). The experimental data have also been used to determine the central ion and electron temperature of PLT discharges and to measure the dielectronic recombination rate coefficient. Good agreement was found with predictions from detailed calculations and from Burgess's general formula.

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