Hot Zero Power Reactor Calculations Using the Insilico Code

In this paper we describe the reactor physics simulation capabilities of the \insilico\ code.  A description of the various capabilities of the code is provided, including detailed discussion of the geometry, meshing, cross section processing, and neutron transport options.  Numerical results demonstrate that the \insilico\ \SPn\ solver with pin-homogenized cross section generation is capable of delivering highly accurate full-core simulation of various PWR problems.  Comparison to both Monte Carlo calculations and measured plant data is provided.