Effects of Dual-Electrode Biasing on E r in a Toroidal Plasma

Autor:	Liu Wan-Dong, Xiao De-Long, Wang Zhijiang, Pan Ge-Sheng, Xu Min, Wang Jun, Wan Shude, Yu Changxuan, Wen Yi-Zhi, Lu Ronghua
Rok vydání:	2005
Předmět:	Materials science Toroid Tokamak General Physics and Astronomy Biasing Plasma law.invention Nuclear magnetic resonance Physics::Plasma Physics law Electric field Electrode Shielded cable Atomic physics Voltage
Zdroj:	Chinese Physics Letters. 22:1471-1473
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/22/6/048
Popis:	Two externally biased electrodes were inserted into the plasma on the KT-5C tokamak to test the effects on modifying the radial electric field Er other than single biasing. Using various combinations of biasing voltage, the influences of double biasing are compared with the single biasing. It turns out that the effect of dual-biasing is also effective as a single one, but the outer electrode seems to be shielded by the inner one and show less influence. The results clearly show that the radial electric field Er changed by external biasing is intrinsically an effect localized at the edge of the plasma, which is caused by the electrode induced radial current; and dual-electrode biasing using the method similar to the single biasing seems not to be able to increase more distinctly the peaking effect on Er than the single biasing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b7ae8b6f119e2372bf0516e8edf4450e https://doi.org/10.1088/0256-307x/22/6/048 Zobrazit plný text záznamu