Transport and MHD studies at high Te in FTU tokamak

被引：15

作者：

Cirant, S

Airoldi, A

Bertalot, L

Bracco, G

Bruschi, A

Buratti, P

Cenacchi, G

Coelho, R

Crisanti, F

Esposito, B

Gabellieri, L

Gandini, F

Granucci, G

Lazzaro, E

Krögler, H

Nowak, S

Pacella, D

Panaccione, L

Ramponi, G

Simonetto, A

Sozzi, C

Tudisco, O

Zerbini, M

Alladio, F

Angelini, B

Apicella, ML

Apruzzese, G

Barbato, E

Bertocchi, A

Borra, M

Buceti, G

Cardinali, A

Centioli, C

Cesario, R

Chuilon, P

Ciattaglia, S

Cocilovo, V

De Angelis, R

Frigione, D

Gatti, G

Giovannozzi, E

Grolli, M

Iannone, F

Leigheb, M

Maddaluno, G

Marinucci, M

Mazzitelli, G

Micozzi, P

Orsitto, P

Panella, M

机构：

[1] EURATOM, ENEA, CNR, Ist Fis Plasma, Milan, Italy

[2] EURATOM, ENEA, CNR, Ctr Ric Energy, Frascati, Italy

[3] ENEA, Ctr Ric Energy, Bologna, Italy

[4] Univ Tecn Lisboa, IST, Ctr Fusao Nucl, EURATOM Assoc, P-1049 Lisbon, Portugal

[5] Univ Roma Tor Vergata, Rome, Italy

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 1999年 / 41卷

关键词：

D O I：

10.1088/0741-3335/41/12B/326

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Magnetohydrodynamic (MHD) activity and energy transport at rational-q surfaces is analysed on the basis of experimental results on current density profile control obtained with localized electron cyclotron resonance heating (ECRH) on FTU tokamak. The MHD response, in particular 2/1 and 1/1 modes, to ECRH is in agreement with expectations from a theoretical model including resistive wall braking and toroidal mode coupling. It is also shown that the magnetic shear at r(q=1) could control m = 1 mode saturation and magnetic reconnection. Heating results with ECRH at steady state indicate that transport enhancement is the dominant effect on confinement at the q = 2 surface, and suggest that conduction and convection inside the asymmetric m = 1 island should both be taken into account for a proper description of the thermal response to localized ECRH.

引用

页码：B351 / B365

页数：15

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