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← ScienceWhich process causes increased neutron flux within reactor fuel rods?
A)Neutron moderation from induced fission✓
B)Bremsstrahlung from gamma photon emission
C)Doppler broadening from U-238 heating
D)Neutron capture due to xenon poisoning
💡 Explanation
Neutron moderation occurs because U-235 isotopes undergo induced fission, releasing multiple neutrons at lower energies, therefore, flux increases locally, rather than from gamma emissions (Bremsstrahlung) or poisoning that inhibit the fission chain reaction.
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