TOKAMAK FORMATION AND SUSTAINMENT BY COAXIAL HELICITY INJECTION CURRENT DRIVE

Authors
NELSON BA JARBOE TR MARTIN AK PAINTER CL
Citation
Ba. Nelson et al., TOKAMAK FORMATION AND SUSTAINMENT BY COAXIAL HELICITY INJECTION CURRENT DRIVE, Nuclear fusion, 34(8), 1994, pp. 1111-1119
Citations number
23
Categorie Soggetti
Phsycs, Fluid & Plasmas","Physics, Nuclear
Journal title
Nuclear fusion → ACNP
ISSN journal
00295515
Volume
34
Issue
8
Year of publication
1994
Pages
1111 - 1119
Database
ISI
SICI code
0029-5515(1994)34:8<1111:TFASBC>2.0.ZU;2-3
Abstract
Experiments characterizing the coaxial helicity source and helicity in jection current drive on the Prototype Helicity Injected Tokamak (Prot o-HIT) have been performed. Toroidal currents over 30 kA can be sustai ned for times much greater than the plasma resistive time. The coaxial source operates with a large toroidal field that greatly enhances the source impedance, allowing a high rate of helicity injection (high so urce voltage) at a low source current (high efficiency), with results showing good agreement with a simple analytical model.