Since 18 of December 2019 uses Nucleus credentials. Visit our help pages for information on how to Register and Sign-in using Nucleus.
Apr 19 – 22, 2022
Vienna, Austria
Europe/Vienna timezone
FR22 starts in Vienna 19 - 22 April 2022 Online Stream:

Analysis of Fuel Burnup and Safety Parameters of Gas Cooled Fast Breeder Reactors

Apr 22, 2022, 2:54 PM
Vienna, Austria

Vienna, Austria

ORAL Track 3. Fuels, Fuel Cycles and Waste Management 3.4 Advanced Fuel Development


Mr Moustafa Aziz Ibrahim (ENRRA)


The Fast Reactor concept has been proposed by Generation-IV initiative as a potential candidate to develop safe, sustainable, reliable, proliferation-resistant and economic nuclear energy systems (GIF, 2002). Within fast reactor core, fission chain reaction is sustained by fast neutrons which result in a much higher and harder neutron flux than that of thermal reactors. This high neutron flux allow for the production of fissile materials from fertile nuclides through the so-called breeding process, whereas, part of fission neutrons is used to convert fertile nuclides (238U and 232Th) into fissile nuclides (239Pu and 233U, respectively).

 Two computational models, homogeneous and heterogeneous, of the large scale Gas cooled Fast concept GFR2400 are designed using Monte Carlo transport code, MCNPX. The two designed models are used to study and analyze the neutronic behavior and transmutations capabilities of the reactor core. Furthermore, the results of both models are compared with each other to study the effect of fuel homogeneity on the neutronic parameters and transmutation of the GFR2400 fast reactor. The isotopic transmutation within the reactor core was calculated for fuel burn-up of 1443 EFPD. The obtained results indicate that the GFR2400 core can achieve sustainability whereas, ~ 99% breeding ratio can be reached without the use of fertile blankets. Moreover, the results of both heterogeneous and homogeneous models have shown good agreement.
Speaker's title Mr
Country/Int. organization Egypt
Affiliation/Organization Nuclear and Radiological Regulatory Authority
Speaker's email address

Primary authors

Presentation materials

There are no materials yet.

Peer reviewing