Abstract:The ion temperature of the smallest tokamak, the major radius of 0.1 m, is measured using Doppler broadening spectroscopy. Experiments are performed for helium discharge. Ion temperature Ti = 0.7eV is obtained from the Doppler broadened line spectrum of the helium ion. The electron temperature and density measured using line emission intensities of the helium atom are Te = 4.7eV and ne = 3.2 × 1018m−3. The major radius R0 = 0.11m and the minor radius a = 0.03m are obtained from magnetic measurements. Then, the… Show more
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