TJ-II:Magnetic field: Difference between revisions

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[[File:TJ-II Curvature.jpg|800px|thumb|center|TJ-II: Curvature &kappa;<sub>N</sub>]]
[[File:TJ-II Curvature.jpg|800px|thumb|center|TJ-II: Curvature &kappa;<sub>N</sub>]]
Normal [[Magnetic curvature|magnetic curvature]] of the magnetic field, &kappa;<sub>N</sub>.  
Normal [[Magnetic curvature|magnetic curvature]] of the magnetic field, &kappa;<sub>N</sub>.  
Positive values of &kappa;<sub>N</sub> are regions where curvature-driven modes are stable.
Positive values of &kappa;<sub>N</sub> are regions where curvature-driven modes are expected to be stable (note that this figure corresponds to the ''vacuum'' magnetic field -without plasma- so that strictly speaking it is not correct to speak about plasma stability).


[[File:TJ-II Local shear.jpg|800px|thumb|center|TJ-II: Local shear, ''s''<sub>local</sub>]]
[[File:TJ-II Local shear.jpg|800px|thumb|center|TJ-II: Local shear, ''s''<sub>local</sub>]]