Corrections to charge exchange spectroscopic measurements in TFTR due to energy‐dependent excitation rates
作者： R. B. Howell , R. J. Fonck , R. J. Knize , K. P. Jaehnig
DOI: 10.1063/1.1140183
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摘要: The use of charge exchange spectroscopy to determine plasma rotation speeds and ion temperature is complicated by the energy dependence excitation cross sections. Doppler‐broadened spectral line shape distorted relative velocity between neutral hydrogen atoms injected beam impurity ions. asymmetric nature this section causes a nonmotional shift center nonthermal change in linewidth. These effects vary with angles direction, direction viewing sightline. When two beams at different on TFTR, measurements vφ(r) show discrepancies about 20%–30% each other. calculation intensity profiles using available rates overcorrects these indicates need for better coefficients.
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