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Nuclear Incident Response Program
Radionuclide Viewer (RV) is a tool for viewing the DCFPAK radiological data provided by Oakridge National Laboratories. Radionuclide viewer allows a user to select a radionuclide and visualize its full decay chain and basic data (half life, decay modes, etc.). In addition to this, radionuclide viewer allows for the viewing of all the various dose coefficients for the selected radionuclide or its daughters.


  • Includes DCFPAK 2015, containing six different vintages of data with published coefficients ranging from years 1983 to 2015.
  • Select a radionuclide and visualize its decay chain.
  • View a radionuclide’s basic information
    • Half-life,
    • Decay Mode
    • Decay Constant
    • Branching Factor
    • Specific Activity
    • Total Alpha, Beta, Photon Energies
    • Alpha and Betas per nuclear transition
  • View Radionuclide’s dose coefficients
    • External
      • Surface
      • 1 cm, 5 cm, 15 cm, infinite soil depth
      • Air submersion
      • Water Submersion
    • Inhalation
    • Ingestion
  • Dose coefficients for
    • ICRP 30, 60, and 56
    • Adult, 15 year old, 10 year old, 5 year old, 1 year old and infant age groups
    • Chronic and Acute commitment periods
Software & Downloads

SAND2018-7117 W