Anonymous

Nuclear weapons: Difference between revisions

From dankwiki
324 bytes added ,  03:53, 5 January 2010
no edit summary
No edit summary
No edit summary
Line 37: Line 37:
* The atom - the nucleus - periodic table - size scales (electron vs proton vs neutron vs alpha particle vs large nucleus vs atomic radius vs molecular size)
* The atom - the nucleus - periodic table - size scales (electron vs proton vs neutron vs alpha particle vs large nucleus vs atomic radius vs molecular size)
* Shell models of the atom and nucleus - Coulomb potentials - Yukawa potentials - neutron absorption and scattering
* Shell models of the atom and nucleus - Coulomb potentials - Yukawa potentials - neutron absorption and scattering
** Neutron effect is a function of (a) incident neutron energy (b) many-body nucleon-nucleon forces and (c) luck
** 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
* 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)