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← ScienceWhich outcome occurs when U-235 enrichment stops for MOX fuel?
A)Reduced neutron emission rate occurs
B)Increased alpha particle emission begins
C)Spontaneous fission yield stabilises
D)Beta decay chain equilibrium arrests✓
💡 Explanation
Beta decay progression halts because without neutron capture, U-239 transmutation stops; therefore, decay equilibrium freezes rather than continues with constant adjustment, which requires continual neutron flux and transmutation of elements within the fuel matrix.
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