Experimental simulation of a gaseous divertor: Measurements of neutral density inside the plasma
- 1 March 1991
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 3 (3) , 834-837
- https://doi.org/10.1063/1.859878
Abstract
Direct measurements of the neutral density in the core of hydrogen plasma with a density of 3–4×1014 cm−3 and electron temperature of 15–20 eV in a magnetic field of 0.2 T, injected into hydrogen neutral gas at a pressure of 0.1–2 Torr are performed with plasma emission spectroscopy. The data are in agreement with the results of measured plasma decay [Phys. Fluids B 2, 837 (1990)] and can be explained by radial pressure balance between fast neutrals inside the plasma and cold background gas.Keywords
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