Publication

JET Snake Magnetohydrodynamic Equilibria

Olivier Sauter, Wilfred Anthony Cooper, Jonathan Graves
2011
Journal Articles

Abstract

Magnetohydrodynamic (MHD) equilibrium states with a three-dimensional helical core that display the characteristics of a saturated ideal internal kink mode are computed to model snake structures that have been observed in the JET tokamak [A.~Weller et al. 1987 Phys.~Rev.~~Lett.~~ extbf{59} 2303]. The equilibrium states are calculated with a peaked pressure profile and a weak to moderate reversed core magnetic shear with a minimum safety factor $q_{min}$ near unity in the neighbourhood of the mid-radius of the plasma. Snake equilibrium states are computed in the range $0.94

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https://infoscience.epfl.ch/entities/publication/31d76001-711a-4fcd-9dc0-23d77f84bd3a

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Olivier Sauter, Wilfred Anthony Cooper, Jonathan Graves
2011
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/31d76001-711a-4fcd-9dc0-23d77f84bd3a

About this result

Related concepts (11)

Tokamak

A tokamak (ˈtoʊkəmæk; токамáк) is a device which uses a powerful magnetic field to confine plasma in the shape of a torus. The tokamak is one of several types of magnetic confinement devices being developed to produce controlled thermonuclear fusion power. , it was the leading candidate for a practical fusion reactor. Tokamaks were initially conceptualized in the 1950s by Soviet physicists Igor Tamm and Andrei Sakharov, inspired by a letter by Oleg Lavrentiev. The first working tokamak was attributed to the work of Natan Yavlinsky on the T-1 in 1958.

Spherical tokamak

A spherical tokamak is a type of fusion power device based on the tokamak principle. It is notable for its very narrow profile, or aspect ratio. A traditional tokamak has a toroidal confinement area that gives it an overall shape similar to a donut, complete with a large hole in the middle. The spherical tokamak reduces the size of the hole as much as possible, resulting in a plasma shape that is almost spherical, often compared to a cored apple. The spherical tokamak is sometimes referred to as a spherical torus and often shortened to ST.

Joint European Torus

The Joint European Torus, or JET, is an operational magnetically confined plasma physics experiment, located at Culham Centre for Fusion Energy in Oxfordshire, UK. Based on a tokamak design, the fusion research facility is a joint European project with a main purpose of opening the way to future nuclear fusion grid energy. At the time of its design JET was larger than any comparable machine. JET was built with the hope of reaching scientific breakeven where the fusion energy gain factor Q =1.0.

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