Revamp drt file and associated CI for overhaul.
Core capability:
Assume k regions between points i and j
For any straight path (ri, rj) and a known set of piecewise constant cross-sections between the endpoints, {sigmak}, with k >= 1 regions defined by the material boundaries, what is the probability of a particle born at ri reaching rj and having a collision?
In a 1-D toy problem with a voxelized geometry and a voxelized solution
--- The material boundaries align with voxels
--- Use this capability between center points of voxels
--- Use this capability for many sets of points where ri is sampled in uniformly in voxel i and rj is sampled uniformly in voxel j
In a 1-D toy problem with a continuous geometry and a voxelized solution
--- The material boundaries need to be determined by ray tracing to determine k and {sigmak}
--- Use this capability between center points of voxels
--- Use this capability for many sets of points where ri is sampled in uniformly in voxel i and rj is sampled uniformly in voxel j
In a multi-D problem with continuous geometry (aka OpenMC) and a voxelized solution
--- The material boundaries need to be determined by ray tracing to determine k and {sigmak}
--- Use this capability between center points of voxels
--- Use this capability for many sets of points where ri is sampled in uniformly in voxel i and rj is sampled uniformly in voxel j
Equations:
L&M 5-19 as vector/matrix where is a diagonal matrix representing the total scattering cross-section in each spatial element
Revamp drt file and associated CI for overhaul. Core capability:
Equations: