Medium
Generic propagation medium for simulations.
Description
The propagation medium of a simulation is described by a TabulatedMaterial dressed with two local properties: its bulk density and / or a local magnetic field. There are two types of propagation media:
- a GradientMedium whose bulk density varies as a unidimensionnal gradient.
- A UniformMedium whose bulk density is uniform over the whole propagation medium.
The boundaries of a propagation medium are defined by a Geometry object. In addition there are two special media instances:
- the transparent_medium represents the absence of proper filling medium in a geometry. Such transparent geometries behave as containers for other (daughter) geometries (volumes).
- The
nilmedium represents the absence of propagation medium at all. It indicates the end of the simulation geometry.
Examples
-- Create a rocky uniform propagation medium with default properties
local rock = pumas.UniformMedium('StandardRock')
-- Create an atmosphere like propagation medium with a density gradient
local atmosphere = pumas.GradientMedium('Air', {lambda = -1E+04})