Wolter Surface
The Wolter Surface is a radial symmetric shell object defined by the following parameters:
| Parameter # | Description | Face Name | Face # |
| 1 | The length along the Z axis. | All Faces | 0 |
| 2 | The radial aperture at z = 0, R0. | All Faces | 0 |
| 3 | The angle in degrees. | All Faces | 0 |
| 4-7 | The polynomial coefficients on Z^2, Z^3, Z^4, and Z^5. | All Faces | 0 |
The object starts at Z = 0 and ends at the specified length.
A Wolter Surface is commonly used in X-Ray telescope optics. The surface is a hollow shell and may be nested within other shells. The shell has a radius that is a function of the z coordinate given by the following expression:
Face Numbers: All faces Face 0.
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