Abstrakt
Spectroscopic measurements are standard measurements at COMPASS tokamak. The two wide spectral range spectrometers HR 2000+ were used for registration of the most intensive spectral lines in ultraviolet and visible wave ranges with ALMOST EQUAL TO 10 ms temporal resolution during the discharges.
The temporal evolution of integral visible light and Hα were measured by a photomultipliers with ALMOST EQUAL TO 1 μs resolution. Evolution of He lines during discharge duration was studied.
Afterglow in helium was found. Evolution of working gas composition during one day of tokamak operating mode is presented.