Noninductive current generation in NSTX using coaxial helicity injection

Journal Article · Mon Jan 01 00:00:00 EST 2001 · Nuclear Fusion

DOI:https://doi.org/10.1088/0029-5515/41/8/311· OSTI ID:1017361

Raman, R. ^[1]; Peng, Yueng Kay Martin ^[2]; Maingi, Rajesh ^[2]; Wilgen, John B ^[2]

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1. University of Washington, Seattle
2. ORNL

Coaxial helicity injection (CHI) on 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, are more than an order of magnitude longer in duration than any CHI discharges previously produced in a spheromak or a spherical torus.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1017361
• Journal Information: Nuclear Fusion, Vol. 41, Issue 8; ISSN 0029--5515
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HELICITY
NSTX DEVICE
ORNL