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

<table>Core design with hard spectrum fuel assemblies surrounded by fuel assemblies with thermal spectrum. 1: graphite reflector, 2: heavy water moderator and reflector, 3: fuel assemblies with thermal spectrum, 4: fuel assemblies with hard spectrum.</table>

Science and Technology of Nuclear Installations

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Figure 1

Figure 1: The Possibilities of Fission Material Reproduction Increase in Thermal Reactor with the Assemblies with a Hard Neutron Spectrum 