Observation of very dense and cold divertor plasma in the beam-heated Doublet III tokamak with single-null poloidal divertor
- 1 April 1984
- journal article
- Published by IOP Publishing in Nuclear Fusion
- Vol. 24 (4), 415-421
- https://doi.org/10.1088/0029-5515/24/4/002
Abstract
A Langmuir probe array in the divertor plate has been used to investigate the dense, cold divertor plasma associated with remote radiative cooling in neutral-beam-heated, single-null open-divertor discharges in Doublet-Ill. With injected powers of up to 1.2 MW, the divertor plasma becomes denser and colder as the main plasma line-averaged density e increases, reaching ned= 2.8 X 1014 cm−3. Since the electron temperature drops to Ted = 3.5 eV under these conditions, this cold, dense plasma can provide a solution to the problem of wall erosion.Keywords
This publication has 8 references indexed in Scilit:
- Characteristics of the divertor plasma in neutral-beam-heated ASDEX dischargesNuclear Fusion, 1983
- High density, single-null poloidal divertor results in doublet IIIJournal of Nuclear Materials, 1982
- Radiation losses and global energy balance for Ohmically heated discharges in ASDEXNuclear Fusion, 1982
- Impurity reduction and remote radiative cooling with single-null poloidal divertor in Doublet-IIINuclear Fusion, 1982
- Cool, High-Density Regime for Poloidal DivertorsPhysical Review Letters, 1982
- Helium Ash Exhaust with Single-Null Poloidal Divertor in Doublet IIIPhysical Review Letters, 1981
- Experimental results on boundary plasmas, resulting surface interactions and extrapolation to large fusion devicesJournal of Nuclear Materials, 1980
- Formation of dee-shaped plasmas with single-null poloidal divertor in Doublet IIINuclear Fusion, 1980