Enhanced confinement regimes with strong electron heating in the presence of flat or inverted safety factor profiles

被引:18
作者
Alladoi, F [1 ]
Angelini, B
Apicella, ML
Apruzzese, G
Barbato, E
Belforte, MR
Bertalot, L
Bertocchi, A
Borra, M
Bracco, G
Bruschi, A
Buceti, G
Buratti, P
Cardinali, A
Castaldo, C
Centioli, C
Cesario, R
Chuilon, P
Cianfarani, C
Ciattaglia, S
Cirant, S
Cocilovo, V
Crisanti, F
De Angelis, R
De Marco, F
Esposito, B
Frigione, D
Gabellieri, L
Gatti, G
Giovannozzi, E
Gourlan, C
Gravanti, F
Granucci, G
Gregory, BC
Grolli, M
Iannone, F
Kroegler, H
Leigheb, M
Maddaluno, G
Maffia, G
Marinucci, M
Mazzitelli, G
Micozzi, P
Mirizzi, F
Orsitto, FP
Pacella, D
Panaccione, L
Panella, M
Pericoli-Ridolfini, V
Pieroni, L
机构
[1] CRE Frascati, EURATOM Assoc, ENEA Sylla Fus, I-00044 Rome, Italy
[2] CNR Fus Milano, EURATOM Assoc, ENEA, Milan, Italy
[3] INRS, Montreal, PQ, Canada
[4] Univ Roma Tor Vergata 2, I-00173 Rome, Italy
关键词
D O I
10.1088/0741-3335/41/3A/026
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
The role of magnetic shear in affecting electron transport is discussed on the basis of the Frascati tokamak upgrade (FTU) data with central electron cyclotron resonance heating (ECRH) on the current ramp phase and with pellet injection. The results point out that strongly negative magnetic shear is not a necessary condition in order to have good electron transport and that magnetohydrodynamic (MHD) activity plays a crucial role in affecting the electron transport in the region with low/negative magnetic shear. The theoretical arguments for the dependence of transport on magnetic shear are reviewed and compared with the experimental evidence.
引用
收藏
页码:A323 / A332
页数:10
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