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Design Options of Control Rod for Low Enriched Uranium Fueled NIRR-1 Using Monte Carlo N-Particle Code

Author(s): Ibrahim YV, Odoi HC, Thomas JW and Jonah SA

Design Options of Control Rod for Low Enriched Uranium Fueled NIRR-1 Using Monte Carlo N-Particle Code

NIRR-1 like other Commercial MNSRs has single control rod performing all safety functions. Feasibility studies have shown that UO₂ fuel enriched to 12.5% can be used for the conversion of MNSRs to LEU. However, this conversion would require modification to the single control rod to maintain same safety margins as the current HEU core. Consequently, the MCNP Code was used to design 3 variants of control rod for proposed LEU Core. Since the main objective of conversion is simply to propose replacing the existing HEU core, the control rods were designed to fit int... view more»

DOI: 10.4172/2325-9809.1000104

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