Study of Thorium-Plutonium Fuel for Possible Operating Cycle Extension in PWRs

<table>The Th-MOX fuel assembly design (a quarter of the fuel assembly). Yellow rods contain 13.7%, red rods 11.7%, and grey rods 9.0% Pu (weight percent of heavy metal content). The zirconium boride layer is too thin to be visible in the figure.</table>

Science and Technology of Nuclear Installations

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Figure 4

Figure 4: Study of Thorium-Plutonium Fuel for Possible Operating Cycle Extension in PWRs 