Bootstrap current: Difference between revisions
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The difference in particle density on banana orbits crossing a given radial position ''r'' then leads to a net toroidal current at ''r''. | The difference in particle density on banana orbits crossing a given radial position ''r'' then leads to a net toroidal current at ''r''. | ||
The bootstrap current is estimated (roughly) as | The bootstrap current is estimated (roughly) as | ||
<ref>K. Miyamoto, ''Plasma | <ref>K. Miyamoto, ''Plasma Physics and Controlled Nuclear Fusion'', Springer-Verlag (2005) ISBN 3540242171</ref> | ||
:<math>j_{b} \sim -\varepsilon^{1/2}\frac{1}{B_p}\frac{dp}{dr}</math> | :<math>j_{b} \sim -\varepsilon^{1/2}\frac{1}{B_p}\frac{dp}{dr}</math> | ||