Global stability study of the ultra low aspect ratio tokamak, ULART
Creators
- 1. Princeton Univ., NJ (United States). Plasma Physics Lab.
- 2. Univ. of Tokyo (Japan). Dept. of Electrical Engineering
Description
By introducing a slender current carrying conductor through the geometric center axis of the Tokyo University TS-3 device, the authors have generated ultra low aspect ratio tokamak (ULART) configurations with aspect ratio as low as 1.05. In this extreme limit they study the transition of the spheromak (qedge = 0, Itf = 0) to a ULART plasma (qedge = 2--20). The authors investigate the global MHD characteristics of ULART by comparing theoretical results with the experimental data obtained. A small current in the center conductor (compared with the plasma current) is found to significantly improve the overall MHD stability characteristics of the formed plasmas by effectively stabilizing the global tilt/shift mode. Theoretical calculations of the threshold toroidal field current required for stability and the growth rates of the tilt/shift modes agree well with the TS-3 data
Availability note (English)
MF available from INIS under the Report Number; Also available from OSTI as DE96006346; NTIS; US Govt. Printing Office Dep.Files
27055046.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 16 p.
- Report number
- PPPL--3161
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27055046
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ASPECT RATIO; COMPARATIVE EVALUATIONS; EXPERIMENTAL DATA; INSTABILITY GROWTH RATES; KINK INSTABILITY; MHD EQUILIBRIUM; PLASMA MACROINSTABILITIES; STABILITY; THEORETICAL DATA; TILTING INSTABILITY; TOKAMAK DEVICES
- Descriptors DEC
- CLOSED PLASMA DEVICES; DATA; EQUILIBRIUM; EVALUATION; INFORMATION; INSTABILITY; NUMERICAL DATA; PLASMA INSTABILITY; THERMONUCLEAR DEVICES
Optional Information
- Contract/Grant/Project number
- Contract AC02-76CH03073
- Funding organization
- USDOE, Washington, DC (United States).