Investigation of the H-Mode during ECRH in the T-10 Tokamak

Authors
Alikaev, VV Borshchegovskii, AA Vershkov, VA Volkov, VV Gorshkov, AV Gott, YV Grashin, SA Dremin, MM Eliseev, LG Esipchuk, YV Zhuravlev, VA Kakurin, AM Kirnev, GS Kirneva, NA Kislov, AY Kislov, DA Klimanov, IV Kochin, VA Krupin, VA Krylov, SV Melnikov, AV Myalton, TB Novikov, AY Notkin, GE Pavlov, YD Piterskii, VV Poznyak, VI Roi, IN Savrukhin, PV Sannikov, VV Soldatov, SV Stepanenko, MM Sushkov, AV Tarasyan, KN Trukhin, VM Trukhina, EV Khimchenko, LN Chistyakov, VV Shelukhin, DA
Citation
Vv. Alikaev et al., Investigation of the H-Mode during ECRH in the T-10 Tokamak, PLAS PHYS R, 26(11), 2000, pp. 917-930
Citations number
13
Categorie Soggetti
Physics
Journal title
PLASMA PHYSICS REPORTS
ISSN journal
1063780X → ACNP
Volume
26
Issue
11
Year of publication
2000
Pages
917 - 930
Database
ISI
SICI code
1063-780X(200011)26:11<917:IOTHDE>2.0.ZU;2-3
Abstract
An improved confinement regime with an external transport barrier (H-mode) is obtained during electron-cyclotron resonance heating of a plasma in the T-10 tokamak. A characteristic feature of this regime is a spontaneous dens ity growth accompanied by a drop in the intensity of D-alpha line and an in crease in beta (p) by a factor of similar to1.6, The threshold power for th e GH transition is close to that predicted by the ITER scaling. The best ch aracteristics of the H-mode are achieved with decreasing q(L) to 2.2. It is shown that the external transport barrier arises for electrons, whereas th e heat transport barrier insignificantly contributes to improved confinemen t. (C) 2000 MAIK "Nauka/Interperiodica".