Specifying the geometryΒΆ

Langmuir supports three probe geometries, with self-descriptive:

  • Plane(A) represents a planar probe with surface area A.
  • Cylinder(r, l, lguard=0, rguard=0) represents a cylindrical probe of radius r and length l. The optional arguments lguard and rguard may be used to specify the length of the left and right guards, respectively. Setting them to float('inf') or True means that there is an ideal guard.
  • Sphere(r) represents a spherical probe of radius r.

All dimensions are in SI units. Not all models may be able to support all geometries, and only the finite length model makes use of the guard feature.