Non-inductive current generation in NSTX using coaxial helicity injection

被引:65
作者
Raman, R [1 ]
Jarboe, TR
Mueller, D
Schaffer, MJ
Maqueda, R
Nelson, BA
Sabbagh, SA
Bell, MG
Ewig, R
Fredrickson, ED
Gates, DA
Hosea, JC
Jardin, SC
Ji, H
Kaita, R
Kaye, SM
Kugel, HW
Lao, LL
Maingi, R
Menard, J
Ono, M
Orvis, D
Paoletti, F
Paul, SF
Peng, YKM
Skinner, CH
Wilgen, JB
Zweben, SJ
机构
[1] Univ Washington, Seattle, WA 98195 USA
[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA
[3] Gen Atom Co, San Diego, CA USA
[4] Los Alamos Natl Lab, Los Alamos, NM USA
[5] Columbia Univ, New York, NY USA
[6] Oak Ridge Natl Lab, Oak Ridge, TN USA
关键词
D O I
10.1088/0029-5515/41/8/311
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
Coaxial helicity injection (CHI) oil the National Spherical Torus Experiment (NSTX) has produced 240 kA of toroidal current without the use of the central solenoid. Values of the current multiplication ratio (CHI produced toroidal current/injector current) up to 10 were obtained, in agreement with predictions. The discharges, which lasted for up to 200 ms, limited only by the programmed waveform, arc, more than an order of magnitude longer in duration than any CHI discharges previously produced in a spheromak or a spherical torus.
引用
收藏
页码:1081 / 1086
页数:6
相关论文
共 15 条
[1]   EXPERIMENTAL-DETERMINATION OF THE CONSERVATION OF MAGNETIC HELICITY FROM THE BALANCE BETWEEN SOURCE AND SPHEROMAK [J].
BARNES, CW ;
FERNANDEZ, JC ;
HENINS, I ;
HOIDA, HW ;
JARBOE, TR ;
KNOX, SO ;
MARKLIN, GJ ;
MCKENNA, KF .
PHYSICS OF FLUIDS, 1986, 29 (10) :3415-3432
[2]   INJECTION AND SUSTAINMENT OF PLASMA IN A PREEXISTING TOROIDAL FIELD USING A COAXIAL HELICITY SOURCE [J].
BROWNING, PK ;
CUNNINGHAM, G ;
DUCK, R ;
GEE, SJ ;
GIBSON, KJ ;
KITSON, DA ;
MARTIN, R ;
RUSBRIDGE, MG .
PHYSICAL REVIEW LETTERS, 1992, 68 (11) :1722-1725
[3]  
DARKE AC, 1995, 16 IEEE NPSS S FUS E, V2, P1456
[4]   High-performance discharges in the Small Tight Aspect Ratio Tokamak (START) [J].
Gates, DA ;
Akers, R ;
Appel, L ;
Carolan, PG ;
Conway, N ;
Dowling, J ;
Gryaznevich, M ;
Hender, T ;
Kwon, OJ ;
Martin, R ;
Nightingale, M ;
Price, M ;
Roach, C ;
Sykes, A ;
Tournianski, MR ;
Walsh, M ;
Warrick, CD .
PHYSICS OF PLASMAS, 1998, 5 (05) :1775-1783
[5]   FORMATION AND STEADY-STATE SUSTAINMENT OF A TOKAMAK BY COAXIAL HELICITY INJECTION [J].
JARBOE, TR .
FUSION TECHNOLOGY, 1989, 15 (01) :7-11
[6]   Results from current drive experiments on the Helicity Injected Torus [J].
Jarboe, TR ;
Bohnet, MA ;
Mattick, AT ;
Nelson, BA ;
Orvis, DJ .
PHYSICS OF PLASMAS, 1998, 5 (05) :1807-1814
[7]  
JARBOE TR, 2000, FUSION ENERGY 1998
[8]   Physics design of the National Spherical Torus Experiment [J].
Kaye, SM ;
Ono, M ;
Peng, YKM ;
Batchelor, DB ;
Carter, MD ;
Choe, WH ;
Goldston, R ;
Hwang, YS ;
Jaeger, EF ;
Jarboe, TR ;
Jardin, S ;
Johnson, D ;
Kaita, R ;
Kessel, C ;
Kugel, H ;
Maingi, R ;
Majeski, R ;
Manickam, J ;
Menard, J ;
Mikkelsen, DR ;
Orvis, DJ ;
Nelson, BA ;
Paoletti, F ;
Pomphrey, N ;
Rewoldt, G ;
Sabbagh, S ;
Strickler, DJ ;
Synakowski, E .
FUSION TECHNOLOGY, 1999, 36 (01) :16-37
[9]   Fast imaging of visible phenomena in TFTR [J].
Maqueda, RJ ;
Wurden, GA .
NUCLEAR FUSION, 1999, 39 (05) :629-636
[10]  
NAGATA M, 2000, FUSION ENERGY 1998