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TJ-II: Difference between revisions
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[[File:TJ-II_3D_perspective.jpg|300px|thumb|right|TJ-II perspective view]] | [[File:TJ-II_3D_perspective.jpg|300px|thumb|right|TJ-II perspective view]] | ||
In TJ-II, the magnetic trap is obtained by means of various sets of coils that completely determine the magnetic surfaces before plasma initiation. The toroidal field is created by 32 coils. The three-dimensional twist of the central axis of the configuration is generated by means of two central coils: one circular and one helical. The horizontal position of the plasma is controlled by the vertical field coils. The combined action of these magnetic fields generate bean-shaped magnetic surfaces that guide the particles of the plasma so that they do not collide with the vacuum vessel wall. | In TJ-II, the magnetic trap is obtained by means of various sets of coils that completely determine the magnetic surfaces before plasma initiation. The toroidal field is created by 32 coils. The three-dimensional twist of the central axis of the configuration is generated by means of two central coils: one circular and one helical. The horizontal position of the plasma is controlled by the vertical field coils. The combined action of these magnetic fields generate bean-shaped magnetic surfaces that guide the particles of the plasma so that they do not collide with the [[TJ-II:Vacuum system|vacuum vessel]] wall. | ||
TJ-II discharges last around 0.25 s, with a repetition frequency of about 7 minutes. | TJ-II discharges last around 0.25 s, with a repetition frequency of about 7 minutes. | ||