HEATING, CURRENT DRIVE AND CONFINEMENT REGIMES WITH THE JET ICRH AND LHCD SYSTEMS

被引:34
作者
JACQUINOT, J
ADAMS, JM
ALTMANN, H
ANDERSEN, A
ANDREW, P
ANGELONE, M
ARSHAD, SA
BAILEY, W
BALLANTYNE, P
BALET, B
BARABASCHI, P
BARNSLEY, R
BARONIAN, M
BARTLETT, DV
BELL, AC
BENFATTO, I
BENALI, G
BERGSAKER, H
BERTOLDI, P
BERTOLINI, E
BHATNAGAR, V
BICKLEY, AJ
BINDSLEV, H
BONICELLI, T
BOOTH, SJ
BOSIA, G
BOTMAN, M
BOUCHER, D
BOUCQUEY, P
BREGER, P
BRELEN, H
BRINKSCHULTE, H
BROWN, T
BRUSATI, M
BUDD, T
BURES, M
BUSINARO, T
BUTCHER, P
BUTTGEREIT, H
CALDWELLNICHOLS, C
CAMPBELL, DJ
CARD, P
CELENTANO, G
CHALLIS, CD
CHANKIN, AV
CHIRON, D
CHRISTIANSEN, J
CHRISTODOULOPOULOS, C
CHUILON, P
CLAESEN, R
机构
[1] UKAEA,HARWELL OX11 0RA,BERKS,ENGLAND
[2] UNIV LEICESTER,LEICESTER LE1 7RH,ENGLAND
[3] ACAD SCI BUDAPEST,CENT RES INST PHYS,BUDAPEST,HUNGARY
[4] UNIV ESSEX,COLCHESTER CO4 3SQ,ESSEX,ENGLAND
[5] ENTE NAZL ENERGIA ATOM,CNR,PADUA,ITALY
[6] PRINCETON PLASMA PHYS LAB,PRINCETON,NJ
[7] UKAEA,CULHAM LAB,ABINGDON OX14 3DB,OXON,ENGLAND
[8] UNIV COMPLUTENSE MADRID,MADRID 3,SPAIN
[9] UNIV OXFORD,INST MATH,OXFORD,ENGLAND
[10] FREE UNIV BERLIN,W-1000 BERLIN 33,GERMANY
[11] SWEDISH ENERGY COMMISS,S-10072 STOCKHOLM,SWEDEN
[12] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,LONDON SW7 2AZ,ENGLAND
[13] MAX PLANCK INST PLASMA PHYS,W-8046 GARCHING,GERMANY
[14] RISO NATL LAB,DK-4000 ROSKILDE,DENMARK
[15] FOM,INST PLASMAFYS,3430 BE NIEWWEGEIN,NETHERLANDS
[16] UNIV LUND,S-22101 LUND,SWEDEN
[17] N CAROLINA STATE UNIV,RALEIGH,NC 27695
[18] UNIV TORONTO,INST AEROSP STUDIES,TORONTO M3H 5T6,ONTARIO,CANADA
[19] UNIV STRATHCLYDE,GLASGOW G1 1XW,SCOTLAND
[20] LAPEENRANTA UNIV,NUCL ENGN LAB,LAPEENRANTA,FINLAND
[21] CIEMAT,MADRID,SPAIN
[22] INST NUCL STUDIES,OTWOCK,POLAND
[23] IV KURCHATOV ATOM ENERGY INST,MOSCOW,USSR
[24] UNIV HEIDELBERG,W-6900 HEIDELBERG,GERMANY
[25] CHINESE ACAD SCI,INST MECH,BEIJING,PEOPLES R CHINA
[26] SOUTHWESTERN UNIV PHYS,LESHAN,PEOPLES R CHINA
[27] RCC CYFRONET,OTWOCK,POLAND
[28] CNEN,I-00044 FRASCATI,ITALY
[29] JAPAN ATOM ENERGY RES INST,NAKA FUS RES ESTAB,IBARAKI,JAPAN
关键词
ICRH; LHCD; H-MODE; L-MODE; HEATING; CONFINEMENT; FUSION YIELD; PEAKED DENSITY PROFILES; ANTENNA SCREEN; EDGE PHYSICS; SYNERGISTIC EFFECTS; CURRENT DRIVE;
D O I
10.1088/0741-3335/33/13/012
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
During its 1990 operation, 2 large RF systems were available on JET. The Ion Cyclotron Resonance Heating (ICRH) system was equipped with new beryllium screens and with feedback matching systems. Specific impurities generated by ICRH were reduced to negligible levels even in the most stringent H-mode conditions. A maximum power of 22 MW was coupled to L-mode plasmas. High quality H-modes (tau-E greater-than-or-equal-to 2.5 tau-EG) were achieved using dipole phasing. A new high confinement mode was discovered. It combines the properties of the H-mode regime to the low central diffusivities obtained by pellet injection. A value of n(d) tau-E T(i) = 7.8 x 10(20) m-3 s keV was obtained in this mode with T(e) approximately T(i) approximately 11 keV. In the L-mode regime, a regime, a record (140 kW) D-He-3 fusion power was generated with 10 - 14 MW of ICRH at the He-3 cyclotron frequency. Experiments were performed with the prototype launcher of the Lower Hybrid Current Drive (LHCD) systems with coupled power up to 1.6 MW with current drive efficiencies up to < n(e) > R I(CD)/P = 0.4 x 10(20) m-2 A/W. Fast electrons are driven by LHCD to tail temperatures of 100 keV with a hollow radial profile. Paradoxically, LHCD induces central heating particularly in combination with ICRH. Finally we present the first observations of the synergistic acceleration of fast electrons by Transit Time Magnetic Pumping (TTMP) (from ICRH) and Electron Landau Damping (ELD) (from LHCD). The synergism generates TTMP current drive even without phasing the ICRH antennae.
引用
收藏
页码:1657 / 1675
页数:19
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