Question

A reactor operating at a power level of equation uses thermal neutrons producing fissions of equation. If the thermal flux is equation, calculate the mass of equation present in the reactor? Assume equation.

19 Jan 2026
Answer :
Word Count : 302
We are asked to find the mass of (^{235}\mathrm{U}) in a reactor operating at 1000 MW using thermal neutrons. Let’s solve this step by step. Given: * Reactor power (P = 1000 , \mathrm{MW} = 1 \times 10^9 , \mathrm{W}) * Thermal neutron flux (\phi = 10^{16} , \mathrm{m^{-2} s^{-1}}) * Fission cross-section (\sigma_f = 580 , \mathrm{b} = 580 \times 10^{-28} , \mathrm{m^2}) * Energy released per fission
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