[2A16-21] Uncertainty Quantification, Fission Product Yield and Decay Data

[2A19] Calculations on fission product yield and fission observables by nuclear reaction code TALYS

(1)From statistical decay theory to independent fission product yield

*Kazuki Fujio¹, Shin Okumura², Arjan Koning², Satoshi Chiba¹ (1. Tokyo Tech, 2. IAEA)

Keywords:Hauser-Feshbach statistical decay theory, fission yield, prompt neutron multiplicity and energy spectrum

TALYS is a nuclear-reaction program that simulates nuclear reactions with the Hauser-Feshbach statistical decay theory.
We applied Hauser-Feshbach statistical decay theory that incorporates TALYS to the de-excitation of fission fragments. The characteristics of fission fragments, Y(Z, A, E_ex, J^π) that is used as inputs of TALYS calculation, were imported from several models.
In our series of presentations, (1) we describe Y(Z, A, E_ex, J^π) distributions and the method that TALYS calculates the de-excitation of fission fragments. The simultaneously calculated independent fission product yields and other fission observables up to 5 MeV incident neutron energies were compared with experimental and evaluated data.