Magnetic shear: Difference between revisions

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Thus, ''ι/2π'' is the mean number of toroidal transits (''n'') divided by the
Thus, ''ι/2π'' is the mean number of toroidal transits (''n'') divided by the
mean number of poloidal transits (''m'') of a field line on a flux surface.
mean number of poloidal transits (''m'') of a field line on a flux surface.
 
In tokamak research, the quantity ''q = 2π/ι'' is preferred (called the "safety factor").
In tokamak research, the quantity ''q = 1/ι'' is preferred (called the "safety factor").


The magnetic shear is defined as
The magnetic shear is defined as

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