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VOLUME 32 (1980) | ISSUE 9 | PAGE 557
Radial distribution of the concentration of oxygen nuclei in the plasma of the T-10 Tokamak
The radial distribution of the concentration of oxygen nuclei was measured for the first time by probing the plasma by a beam of fast hydrogen atoms.1 It is shown that there is no appreciable buildup of oxygen in the plasma during the steady-state stage of the discharge, and the diffusion lifetime of oxygen nuclei is estimated to be r = 14 msec.