Coordinates¶
The tokamak is a curvilinear device which can be described in a number of coordinate systems: the Cartesian coordinates \((X,Y,Z)\), the cylindrical coordinates \((R, Z, \phi)\), the toroidal coordinates \((r, \theta, \phi)\) and many more. PLEQUE supports all of the above and more, see the Straight Field Lines example notebook.
Accepted coordinates types¶
1D - coordinates
| Coordinate | Code | Note |
|---|---|---|
| \(\psi_\mathrm{N}\) | psi_n |
Default 1D coordinate |
| \(\psi\) | psi |
|
| \(\rho\) | rho |
\(\rho = \sqrt{\psi_n}\) |
2D - coordinates
| Coordinate | Code | Note |
|---|---|---|
| \((R, Z)\) | R, Z |
Default 2D coordinate |
| \((r, \theta)\) | r, theta |
Polar coordinates with respect to magnetic axis |
3D - coordinates
| Coordinate | Code | Note |
|---|---|---|
| \((R, Z, \phi)\) | R, Z, phi |
Default 3D coordinate |
| \((X, Y, Z)\) | X, Y, Z |