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Triangularity: Difference between revisions
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Add simple illustration of shift, elongation, triangularity, and squareness
(Mention how triangularity affects the plasma and mention negative triangularity.) |
m (Add simple illustration of shift, elongation, triangularity, and squareness) |
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[[File:Geometry.png|400px|thumb|right|Sketch of tokamak geometry, including separatrix]] | [[File:Geometry.png|400px|thumb|right|Sketch of tokamak geometry, including separatrix]] | ||
[[File:Cross_section_1shift_2elong_3triang_4square.png|400px|thumb|right|Illustration of the m=1,2,3, and 4 perturbations to a tokamak plasma cross section. Triangularity is the m=3 perturbation.]] | |||
The triangularity refers to the shape of the poloidal cross section of the Last Closed [[Flux surface]] (LCFS) or [[separatrix]] of a [[tokamak]]. | The triangularity refers to the shape of the poloidal cross section of the Last Closed [[Flux surface]] (LCFS) or [[separatrix]] of a [[tokamak]]. | ||
Assuming<ref>T.C. Luce, [[doi:10.1088/0741-3335/55/9/095009|Plasma Phys. Control. Fusion '''55''' (2013) 095009 ]]</ref>: | Assuming<ref>T.C. Luce, [[doi:10.1088/0741-3335/55/9/095009|Plasma Phys. Control. Fusion '''55''' (2013) 095009 ]]</ref>: | ||