A Near-Source Model for Chemically Reacting Radionuclides

We propose to develop a near-source model for the release of chemically reacting radionuclides. The model structure is based on an available code for reacting chemicals. The model will include interactive effects of nuclear transformation, chemical reaction, and plume physical motion. Such a model will provide fast and accurate predictions for the source characterization and transport of radionuclides in the near-source field and bridge the gap between source modeling and large-scale meterological predictions. It will be interfaced with existing HPAC capability to strengthen its applicability and predictability in providing real-time information for radiological emergencies. The code, complete with a graphical user interface, will run on computers equivalent to a Pentium PC. The code can be used in assisting government agencies such as DoD, DoE, NASA, EPA, and their contractors in assessing potential collateral effects of nuclear hazard from facilities and weapons. The code can also be applied by both government agencies and private industries for environmental assessment of accidentally released hazardous materials.