Partial-range legendre polynomial solution of the neutron-transport equation

A new variant of the spherical harmonics formalism is used in solving the one-speed neutron-transport equation. One unique facet of this formalism is the imposition of arbitrary angular segmentations that can be chosen to maximize the computational accuracy in a given modal-nodal approximation. It is found that this solution procedure permits the exact calculation of some neutron-transport parameters using a low-order expansion.