INVENT: A Module for the Calculation of Radionuclide Inventories, SoftwareDescription, and User Guide

摘要

This report describes the Invent module and a set of Fortran subrountines whichwere developed for use with the Nuclear Regulatory Commission (NRC) Total-System Performance Assessment (TPA) computer code. The report describes the structure of the INVENT module and provides instructions for its general use. The new module is a unique integration of: a graphical user interface (GUI) development program, a relational database program, and a computer code that calculates the radionuclide inventory for spent fuel. The basic output of the INVENT module is a set of radionuclides and their associated time-dependent curie content per metric ton of heavy metal for spent fuel. Because the radionuclide inventories are repetitively required in the TPA code, a set of simplified FORTRAN subroutines have been developed which allow the efficient storage and retrieval of the inventories of a few key radionuclides.