Effective plasma radius: Difference between revisions

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Assuming only that ''S'' is linear in ''r''<sub>eff</sub> (or ''V'' is cuadratic in ''r''<sub>eff</sub>), it follows that:
Assuming only that ''S'' is linear in ''r''<sub>eff</sub> (or ''V'' is cuadratic in ''r''<sub>eff</sub>), it follows that:
* ''r''<sub>eff</sub> = ''dV/dS''
* ''r''<sub>eff</sub> = ''dV/dS''
This definition is more general.
This definition is more general, although its validity is subject to the mentioned assumption. A fully general definition follows from
* <math>r_{\rm eff} = \int_0^V{dV'/S(V')}</math>
but it requires knowledge of the full equilibrium in terms of the function ''S(V)''.


== Effective radius based on poloidal cross sections ==
== Effective radius based on poloidal cross sections ==