Ha spectroscopy for hot plasma parameters measurement
  The new spectroscopic method for measurement of hot plasma parameters is developed. The method based on Ha profile monitoring. The profile was accurately calculated for a wide range of plasma parameters (n$_e \sim $ 10$^{14} \div $ 10$^{17}$ cm$^{-3}$, T$_e \sim 1\div$500 eV) Use of the method in the experiment gives the electron density and ion temperature dependence from the time. Measurements was in a good agreement with diamagnetic loop dates.   Key words: H$_\alpha$ spectroscopy, line profile, density and high temperature measurement. 
P.I.Melnikov, I.A.Ivanov