MAROTTA , Riccardo

This review article is an overview on some recent developments of Generation IV (GEN-IV) gas cooled nuclear reactor performing in the frame of innovative symbiotic fuel cycle mainly by our research group. In fact such reactors, in addition to energy generation, can also improve nuclear fuel exploitation and decrease nuclear waste radiotoxicity...

Transmutation is one of the most promising strategies to minimize Minor Actinides inventories. Particularly, during NPPs operation, Am and Cm isotopes are generated by capture and transmutation processes from U and Pu. High neutron flux (typical of fast reactors) and high neutron capture cross-section can help to implement such strategy. Fast...

This paper presents the comparison between two Monte Carlo based burnup codes: SERPENT and MONTEBURNS. Monte Carlo codes are fully and worldwide adopted to perform analyses on nuclear facilities, also in the frame of Generation IV advanced reactors simulations. Thus, faster and most powerful calculation codes are needed with the aim to analyze...

Among the strategies which carry on the main aim of minimizing MA (Minor Actinides) inventories, transmutation is one of the most. In fact, FR (Fast Reactors), in addition to energy generation, can also decrease nuclear waste radiotoxicity mainly by transmutation processes. The implementation of this strategy might be helped by some typical...

Since the '90s interest has grown in the characterization of sub-critical systems. Because they should not have control/shutdown devices, it is necessary to prevent by design neutron flux divergence in all conditions. Most of the available theoretical models on neutron kinetic behavior in multiplying systems are tailored on the description of...

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