onix.nax.bateman_step_solution_matrix

onix.nax.bateman_step_solution_matrix(chain, abun, batch, cell, dphi, EFPD)[source]

This function calculates the density evolution of a (n,gamma) chain over the length of one fuel batch irradiation. The Bateman solution uses the one-group cross sections obtained from the neutronics simulation of the batch.

Parameters

  • chain (dict) – Dictionnary where keys are z number and entries are (n,gamma) chains

  • abun (List) – List of natural abundance of each isotope of the (n,gamma) chain

  • batch (onix.nax.Batch) – Batch object from which one-group cross section evolution are extracted to construct the Bateman solution for the density evlution of the (n,gamma) chain

  • cell (str) – Name of the BUCell where fluence indicators are to be measured

  • dphi (float) – The fluence interval that separates each fluence point where Bateman solution is constructed