Extension and validation of the TRANSURANUS burn-up model for helium production in high burn-up LWR fuels

Extending Transuranus Burnup Model for Agr-Like Fhr Fuel Design

“…The parameters 𝑝 1 , 𝑝 2 and 𝑝 3 were first evaluated for U238 by carefully comparing with experimental data (Lassmann et al, 1994). The function 𝑓 (𝑟)𝑁(𝑟), with 𝑁(𝑟) in atoms/cm3, is normalised to the radially averaged concentration of the nuclide (U238 or Pu240) (Botazzoli et al, 2011). The parameters 𝑝 2 and 𝑝 3 were kept constant in the LWR and HWR TUBRNP models (Lassmann et al, 1998).…”