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SUNIST

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SUNIST
Sino-UNIted Spherical Tokamak
Device typeSpherical tokamak
LocationBeijing, China
AffiliationTsinghua University
Technical specifications
Major radius30 cm (12 in)
Minor radius23 cm (9.1 in)
Magnetic field0.15 T (1,500 G) (toroidal)
Plasma current30 kA
History
Year(s) of operation2002–present
Links
WebsiteSUNIST Laboratory

SUNIST (or Sino-UNIted Spherical Tokamak) is a small spherical tokamak in the Department of Engineering Physics of Tsinghua University, Beijing, China.[1]

The main parameters of SUNIST

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Parameter Symbol Value
Major radius R 30 cm
Minor radius a 23 cm
Elongation ratio κ 1.6
On-axis magnetic field B0 1500 gauss (0.15 T)
Typical plasma current IP 30 kA

Current research activities

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Alfven wave current drive experiments in spherical tokamak plasmas Alfven wave can generate toroidal plasma current without density limits. This is very favourable for spherical tokamak plasmas, which have very high dielectric constants that makes LHCD or ECCD very hard.

References

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  1. ^ Ying, Wang; Li, Zeng; Yexi, He; Team, SUNIST (2003). "Initial Plasma Startup Test on SUNIST Spherical Tokamak". Plasma Science and Technology. 5 (6): 2017–2022. Bibcode:2003PlST....5.2017W. doi:10.1088/1009-0630/5/6/001. ISSN 1009-0630. S2CID 250762020.