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Science and Technology of Nuclear Installations
Volume 2011, Article ID 897165, 4 pages
Research Article

The Possibilities of Fission Material Reproduction Increase in Thermal Reactor with the Assemblies with a Hard Neutron Spectrum

Institute of Atomic Energy, NNC RK, 071100 Kurchatov, Kazakhstan

Received 20 May 2011; Revised 26 August 2011; Accepted 22 September 2011

Academic Editor: Keith E. Holbert

Copyright © 2011 Vladimir M. Kotov et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper addresses the problem of fission material reproduction increase in thermal reactors. Reproduction increase is achieved while decreasing the fission material content in the fuel. In that case, a decrease of neutron loss in construction materials and a neutron leakage decrease are required for obtaining reactor criticality. Effectiveness of the reactor functioning can be increased by the use of additional neutron sources, for example, n-2n reaction in beryllium framing. The possibility of additional neutron source development with the use of fast neutrons with an energy distribution close to the fission spectrum in the major part of thermal reactor core is researched in this paper.