Confinement studies in the TJ-II stellarator

Authors
Alejaldre, C Alonso, J Almoguera, L Ascasibar, E Baciero, A Balbin, R Blaumoser, M Botija, J Branas, B de la Cal, E Cappa, A Carrasco, R Castejon, F Cepero, JR Cremy, C Delgrado, JM Doncel, J Dulya, C Estrada, T Fernandez, A Fuentes, C Garcia, A Garcia-Cortes, I Guasp, J Herranz, J Hidalgo, C Jimenez, JA Kirpitchev, I Krivenski, V Labrador, I Lapayese, F Likin, K Linier, M Lopez-Fraguas, A Lopez-Sanchez, A de la Luna, E Martin, R Martinez, A Martinez-Laso, L Medrano, M Mendez, P McCarthy, KJ Medina, F van Milligen, B Ochando, M Pacios, L Pastor, I Pedrosa, MA de la Pena, A Portas, A Qin, J Rodriguez-Rodrigo, L Salas, A Sanchez, E Sanchez, J Tabares, F Tafalla, D Tribaldos, V Vega, J Zurro, B Akulina, D Fedyanin, OI Grebenshchikov, S Kharchev, N Meshcheryakov, A Sarksian, KA Barth, R van Dijk, G van der Meiden, H
Citation
C. Alejaldre et al., Confinement studies in the TJ-II stellarator, PLASMA PHYS, 41, 1999, pp. B109-B117
Citations number
10
Categorie Soggetti
Physics
Journal title
PLASMA PHYSICS AND CONTROLLED FUSION
ISSN journal
07413335 → ACNP
Volume
41
Year of publication
1999
Supplement
12B
Pages
B109 - B117
Database
ISI
SICI code
0741-3335(199912)41:<B109:CSITTS>2.0.ZU;2-C
Abstract
ECR (electron cyclotron resonance) heated plasmas have been studied in the low magnetic shear TJ-II stellarator (R = 1.5 m, a < 0.22 m, B = 1 T, f = 5 3.2 GHz, P-ECRH = 300 kW, power density = 1-25 W cm(-3)). Recent experiment s have explored the flexibility of the TJ-II across a wide range of plasma volumes with different rotational transforms and rational surface densities . In this paper, the main results of this campaign are presented and, in pa rticular, the influence of iota and rational surfaces on plasma profiles is discussed.