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Nuclear weapons: Difference between revisions
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** Resonance with nucleus activation energies leads to preferring absorption over scattering | ** Resonance with nucleus activation energies leads to preferring absorption over scattering | ||
** Nucleon-nucleon forces are typically described in per-{isotope X fine structure} terms, ignoring hyperfine details | ** Nucleon-nucleon forces are typically described in per-{isotope X fine structure} terms, ignoring hyperfine details | ||
** Result: for a given isotope, there's a function taking {excitation level X neutron energy} to {fission probability} | |||
* Electodynamics - strong nuclear force - weak nuclear force - quantum tunneling | * Electodynamics - strong nuclear force - weak nuclear force - quantum tunneling | ||
** Thermal neutrons can't classically cross Coulomb repulsions, but tunneling permits π-induced fission (π = pion, aka any of 3 π-mesons) | ** Thermal neutrons can't classically cross Coulomb repulsions, but tunneling permits π-induced fission (π = pion, aka any of 3 π-mesons) | ||
