Spectroscopic study by means of laser fluorescence of the penetration of heavy impurities into the plasma in the TO-2 tokamak with a toroidal divertor
Journal Article
·
· Soviet Journal of Plasma Physics
OSTI ID:105408
Laser fluorescence spectroscopy (LFS) is used in thermonulcear devices to study the peripheral plasma. It allows the densities, fluxes, velocities, and temperatures of impurity atoms and ions to be determined. This diagnostic has been used successfully in a number of facilities in plasma-wall studies in order to measure the absolute densities of the metallic impurity atoms and their fluxes into the plasma. The main goal of LFS experiments carried out in the TO-2 tokamak is to investigate the mechanisms responsible for wall erosion and their intensities when the device is operating in the diverter regime, and to compare the results with those obtained in the limiter regime. For this purpose this report describes a series of measurements of the absolute density of iron atoms carried out in the TO-2 tokamak with two toroidal diverters in the diverter and limiter regimes.
- OSTI ID:
- 105408
- Journal Information:
- Soviet Journal of Plasma Physics, Journal Name: Soviet Journal of Plasma Physics Journal Issue: 6 Vol. 18; ISSN SJPPDC; ISSN 0360-0343
- Country of Publication:
- United States
- Language:
- English
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