Numerical Estimation of Nuclear Decay Heat from Induced Neutron Fission of 235U and 239Pu

Year 2020, Volume: 4 Issue: 4, 21 - 29, 23.10.2020

Amir Alramady Sherif Nafee Ahood Alshammary

Abstract

In this paper, Joint
Evaluated Fission and Fusion (JEFF) Nuclear Data Library has been used to
calculate the nuclear decay heat after a fission burst of ²³⁵U and ²³⁹Pu  for shutdown time up to 10⁵ sec.
This estimation is based on the numerical solution of the linear differential
equations that describe buildups and decays of the fission products. The code
was written in MATLAB, which is fast and easy-access platform. The verification of the current code is carried out by
comparing the numerical results with the measured reported ones. The
discrepancies between the evaluated results and the measured ones show the
reliability of the current calculation.

Keywords

Fission yield, Nuclear Decay heat, JEFF3.1, Nuclear Data Library

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