NUC K117 Chapter 3: Fission Process
3 Feb 2019
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Document Summary
Curve of binding energy per nucleon: be/a curve. 0 to 60 mass number: curve very steep, with increasing be/a up to about 60. Fusion" of light nuclides can release huge amounts of energy when joined together e. g. 1. H 2 + 1h 3 = 2h 4 + 0 n 1 + 17. 6 mev: region of stability, as curve peaks and rounds o , nuclear & repulsive columbia forces are well balanced overall. Nuclides relatively stable in this region: above mass number 60, the be/a drops o as nucleons become further apart and the neutron/proton ratio grows. Nucleus less stable and less energy is required to break it apart: mass number 235, 238, etc, tend to be unstable, ssile, and easily break apart, releasing energy as the. Binding energy of the daughter nuclides is < then original nucleus. Thermal fission versus fast fission: heavy nuclide fission, heavy nuclei ssion more easily because:
