Most new nuclear fission reactors being built today ... (‘slow’) neutrons fall right within the neutron cross section for U-235 and a few other elements (e.g. Pu isotopes), but incapable ...
Fluorine has a significant scattering cross-section for neutrons in the 0.5-1 MeV range ... leading to an exponential chain reaction. Energy Release: Each U-235 fission releases ~200 MeV (3.2 × 10⁻¹¹ ...
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