Research Article

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

Figure 3

Variants of hard assembly (A) with heavy metal layer thickness, 2 cm and 5 rows of fuel rods, (B) with layer thickness, 3 cm and 5 rows of fuel rods, (C) with layer thickness, 3 cm and 8 rows of fuel rods, (D) with layer thickness, 3 cm and 3 rows of fuel rods. 1: heavy water moderator, 2: heavy metals layer, 3: peripheral fuel rods of the assembly with hard spectrum, 4: gaseous region (middle part of the assembly), 5: fuel assembly with thermal neutron spectrum, and 6: central fuel rods.
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