Nuclear Fusion Physics and Technology/Tokamak Device Overview

Definition (Magnetic vessel):

Magnetic vessel is electromagnetic field device aimed for plasma keeping.

Definition (Linear configuration):

Linear configuration of magnetic vessel is electromagnetic field with parallel field lines and open ends.

Definition (Toroidal configuration):

Toroidal configuration of magnetic vessel is toroidal electromagnetic field with closed ends.

Definition (Number 8 configuration):

Number 8 configuration of magnetic vessel is crossed electromagnetic field with closed ends and field lines in number 8 shape.

Definition (Stelarator):

Stelarator is axial asymmetric magnetic vessel with toroidal configuration.

Definition (Poloidal magnetic field):

Poloidal magnetic field of toroidal magnetic vessel is magnetic field component with field lines closed perpendicular around coordinate $\varphi$.

Definition (Toroidal magnetic field):

Toroidal magnetic field of toroidal magnetic vessel is magnetic field component with field lines closed perpendicular around coordinate $h$.

Definition (Main axis):

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Definition (Magnetic axis):

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Definition (Major radius):

Major radius $R_{0}$ is distance between main axis to magnetic axis.

Definition (Minor radius):

Minor radius $r_{0}$ is distance between magnetic axis and plasma edge. (plasma edge definition needed, maybe 1/e drop of f(r)?)

Definition (Aspect ratio):

Aspect ratio $a$ is ratio of major radius and minor radius

(a)

$a={\frac {R_{0}}{r_{0}}}$