ORIGEN-S - Functional Modules

ORIGEN-S is an updated version of the ORIGEN code with flexible dimensioning and free-form input processing. One of the primary objectives in developing ORIGEN-S was that the calculations be able to utilize multi-energy-group neutron flux and cross sections in any group structure. Utilization of the multigroup data is automated via the COUPLE code. ORIGEN-S performs point depletion and decay analyses to obtain isotopic concentrations, decay heat source terms, and radiation source spectra and strengths for use in subsequent system analyses.