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19–22 Apr 2022
Vienna International Centre
UTC timezone

Toward a consistent calculation of prompt and beta decay observables from fission fragment

19 Apr 2022, 14:45
1h
C0213 (Vienna International Centre)

C0213

Vienna International Centre

Vienna International Centre

Speaker

Shin OKUMURA (IAEA)

Description

Accurate fission product yield (FPY) data consistent with fission observables in the evaluated nuclear data library are required for a broad range of nuclear energy applications in a wide energy range. For instance, delayed neutron yields, and gamma and beta decay energies released from the neutron-rich fission product undergoing beta decay should be consistent with the independent FPY.

In the nuclear reaction code, TALYS, a new feature to apply the Hauser-Feshbach statistical decay theory to the de-excitation of the fission fragment has been implemented by importing theoretical or phenomenological fission fragment distributions. The calculated independent FPY data are further assessed by examining beta-decay observables such as cumulative FPY, decay heat, and delayed neutron yields.

We present recent developments and calculated results by TALYS and beta-decay code.

Primary authors

Arjan KONING (IAEA) Shin OKUMURA (IAEA) Kazuki FUJIO (Tokyo Institute of Technology)

Presentation materials