Enhanced neutronics systems

A computer system, comprising:

• at least one processor configured to perform acts of:
• generating a user interface in response to execution of instructions, the user interface comprising:
• identifying an input definition of a nuclear reactor model including a plurality of defined assemblies represented as a hierarchical data structure, wherein individual ones of the plurality of defined assemblies are representative of a physical component that is present in the nuclear reactor model, two or more of the defined assemblies represent fuel assembly structures of a nuclear reactor, individual ones of the fuel assembly structures including a plurality of block structures representative of axially distributed blocks of the fuel assembly of a nuclear reactor core, at least one block of the plurality of block structures of the fuel assembly structures includes material data and location data, the material data and location data representative of fuel pin material and location within the fuel assembly of the nuclear reactor core, at least one fuel pin material of a first fuel assembly structure being different from a second fuel pin material of a second fuel assembly structure, one or more of the defined assemblies are representative of control rods of the nuclear reactor, and one or more of the defined assemblies are representative of a structure of a fuel assembly receptacle of the nuclear reactor core;
• presenting, within the user interface, a plurality of simulator modules and permitting a user to selectively choose one or more of the plurality of simulator modules to be simulated, the simulator modules comprising a neutronics simulator module, a fuel burn simulator module, a thermal hydraulics simulator modules, and a material performance simulator module;
• simulating the defined reactor model associated with the input definition including a chosen one or more of the plurality of simulator modules, generating simulation data, wherein the act of simulating the defined reactor model includes calling interfaces of the chosen one or more of the plurality of simulator modules in a predetermined sequence;
• presenting an output of the act of simulating the defined reactor model within the user interface, including the generated simulation data;
• receiving, from the user interface, a selection of an individual one of the plurality of block structures at a selected point in time;
• presenting, in the user interface, the material data of the individual one of the plurality of block structures at the selected point in time;
• determining to insert one or more neutron modifying structures into the defined reactor model to drive a nuclear fission deflagration wave burnfront and cause the nuclear fission deflagration wave burnfront to selectively move into areas of nuclear fission fuel as desired;
• and
• presenting, in the user interface, the act of simulating the nuclear fission deflagration wave burnfront in response to inserting the one or more neutron modifying structures into the desired reactor model.