Using MENU-TACT for estimating radionuclide releases during a reactor emergency

MENU-TACT is a computer code designed to estimate potential atmospheric releases of radionuclides from the reactor complex during a reactor emergency. It is part of a suite of models, the Intermediate Dose Assessment System, which is used at the US Nuclear Regulatory Commission's Operations Center. MENU-TACT incorporates only those processes that can make major changes in the magnitude of a reactor release. It provides quick results of bounding calculations. MENU-TACT was written to be simple to use. Data are entered via fill-in-the-blank displays or selection of menu options. Plant-specific and generic default values for data are provided where appropriate. The code models transport of nuclides from containment through a series of volumes to the environment. The analyst controls the pathways from the volumes to the environment, timing of events, and depletion parameters, along with other required data