Download Intro_STREAM-SNF

The Recommended Publication for Citing

  1. Bamidele Ebiwonjumi, Sooyoung Choi, Matthieu Lemaire, Deokjung Lee*, “Verification and Validation of Radiation Source Term Capabilities in STREAM,” Ann. Nucl. Energy, 124: 80-87,.  (2019)
  2. Bamidele Ebiwonjumi, Chidong Kong, Peng Zhang, Alexey Cherezov, Deokjung Lee*, “Uncertainty Quantification of PWR Spent Fuel due to Nuclear Data and Modelling Parameters”, Nucl. Eng. Tech,.  (2020)


A radiation source term capability has been implemented in STREAM to perform SNF characterization, cask dose rate analysis, for waste management, radiological safety and burnup credit applications.


  • Pin wise/assembly wise SNF isotopic inventory
  • Radioactivity
  • Decay heat
  • Gamma source intensity & spectra
  • Neutron source intensity &  spectra

UNIST-SNF Calculation Procedure


STREAM-SNF Decay Heat Validation

Source Term Uncertainty Quantification

Source Term Uncertainty vs Cooling Time

Application of AI into Decay Heat Calculation