Abstract
The application of effective methods of charge-exchange neutral particle diagnostics to determine ion temperatures of plasmas in modern plasma installations is of great practical interest. In this paper, we propose a new type of ionizer based on ionization of neutral charge-exchange particles reflecting from metallic surfaces. A set of Ta plates is used as a reflecting surface converter. The experimental results of using the proposed ionizer on the T-10 tokamak installation are presented. The obtained ion temperature is compared with temperatures derived by other methods for ohmic plasma heating. It is shown that the determined ion temperature has an error of 10% and agrees well with values calculated by the Artsimovich formula and obtained by the active Charge eXchange Recombination Spectroscopy. The proposed analyzer for ion temperature determination has an enhanced sensitivity in comparison with other analyzers.
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