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Beta: Difference between revisions
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(Created page with 'Plasma performance is often expressed in terms of beta (β), defined as: <ref>J.P. Freidberg, ''Plasma physics and fusion energy'', Cambridge University Press (2007) ISBN 052…') |
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:<math>\frac{1}{\beta} = \frac{1}{\beta_p} + \frac{1}{\beta_t}</math> | :<math>\frac{1}{\beta} = \frac{1}{\beta_p} + \frac{1}{\beta_t}</math> | ||
== | == Normalized beta == | ||
The normalized beta is an operational parameter indicating how close the plasma is to reaching the [[Greenwald limit]]. Its definition is (for tokamaks): | |||
:<math>\beta_N = \beta \frac{a B}{I_p}</math> | |||
where ''B'' is in T, ''a'' in m, and ''I<sub>p</sub>'' in MA. | |||
== References == | == References == | ||
<references /> | <references /> | ||