26-05-2012, 03:30 PM
Destruction of Nuclear Bombs Using an Ultra-High Energy Neutrino Beam
[attachment=23187]
Introduction
1938: Discovery of nuclear fission by O. Hahn and F. Strassman
1939: First theoretical explanation of fission by L. Meitner. Einstein and other scientists write to President Roosevelt about efforts of Nazi-Germany to purify U-235
US start Manhattan-Project led and sustained by many famous physicists (Oppenheimer, Bohm, Wigner, Bloch, Bohr, Franck, Fermi, Teller, Lawrence, Feynman, ...) Cost: 20 billion US$ (1996 equiv.)
July 16, 1945: First atomic bomb test in New Mexico
August 6, 1945: Uranium bomb exploded over Hiroshima
August 9, 1945: Plutonium bomb over Nagasaki
1949: First atomic bomb of USSR
1958: First Intercontinental Ballistic Missiles by US
Some physics about the bomb
Separation of U-235:
Magnetic separation:UCl4 in Cyclotron (E. Lawrence)
Gaseous diffusion: UF6 through porous filters (G. Groves)
Gas centrifuges:
Production of P-239:
Neutron capture of U238 in reactor
Critical Mass:
Exact amount of material needed to sustain a chain reaction – depends on form and purity
(~50 kg U-235, 16 kg P-239, 10 kg P-239 surrounded by U-238)
Do the simulation:
For neutrino part: HERWIG
For interaction of hadron shower with soil: GEANT4
temperature increase of Plutonium system: MCNPX
Critical Issues
Without invention of magnets of at least 100 Tesla totally
ridiculous (need 1000 km circumference with 10 Tesla)
Required steering accuracy: 10-7 ~ 0.1 micron / m
(current effort towards construction of linear collider: 1 micron / m
Power consumption: Only neutrinos: 1014 ·10-19 ·1015 W 10 GW
Calculate with: 50 GW whole capacity of Japanese nuclear power
[attachment=23187]
Introduction
1938: Discovery of nuclear fission by O. Hahn and F. Strassman
1939: First theoretical explanation of fission by L. Meitner. Einstein and other scientists write to President Roosevelt about efforts of Nazi-Germany to purify U-235
US start Manhattan-Project led and sustained by many famous physicists (Oppenheimer, Bohm, Wigner, Bloch, Bohr, Franck, Fermi, Teller, Lawrence, Feynman, ...) Cost: 20 billion US$ (1996 equiv.)
July 16, 1945: First atomic bomb test in New Mexico
August 6, 1945: Uranium bomb exploded over Hiroshima
August 9, 1945: Plutonium bomb over Nagasaki
1949: First atomic bomb of USSR
1958: First Intercontinental Ballistic Missiles by US
Some physics about the bomb
Separation of U-235:
Magnetic separation:UCl4 in Cyclotron (E. Lawrence)
Gaseous diffusion: UF6 through porous filters (G. Groves)
Gas centrifuges:
Production of P-239:
Neutron capture of U238 in reactor
Critical Mass:
Exact amount of material needed to sustain a chain reaction – depends on form and purity
(~50 kg U-235, 16 kg P-239, 10 kg P-239 surrounded by U-238)
Do the simulation:
For neutrino part: HERWIG
For interaction of hadron shower with soil: GEANT4
temperature increase of Plutonium system: MCNPX
Critical Issues
Without invention of magnets of at least 100 Tesla totally
ridiculous (need 1000 km circumference with 10 Tesla)
Required steering accuracy: 10-7 ~ 0.1 micron / m
(current effort towards construction of linear collider: 1 micron / m
Power consumption: Only neutrinos: 1014 ·10-19 ·1015 W 10 GW
Calculate with: 50 GW whole capacity of Japanese nuclear power