Nuclear Fusion Physics and Technology/Tokamak Device

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Note: Basic assumptions[edit]

Lets assume electromagnetic field described by electric and magnetic vector fields \vec{E}(\vec{r}), \vec{B}(\vec{r}) and plasma described by probability density f(\vec{r}). Also lets assume that basic terms are self-explaining.

Definition: Magnetic vessel[edit]

Magnetic vessel is electromagnetic field device aimed for plasma keeping.

Definition: Linear configuration[edit]

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

Definition: Toroidal configuration[edit]

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

Definition: Number 8 configuration[edit]

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

Definition: Stelarator[edit]

Stelarator is axial asymmetric magnetic vessel with toroidal configuration.

Definition: Poloidal magnetic field[edit]

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

Definition: Toroidal magnetic field[edit]

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

Definition: Main axis[edit]

Definition: Magnetic axis[edit]

Definition: Major radius[edit]

Major radius R_0 is distance between main axis to magnetic axis.

Definition: Minor radius[edit]

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[edit]

Aspect ratio a is ratio of major radius and minor radius

a = \frac{R_0}{r_0}