Difference between revisions of "Neutron pinball"
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==The Simulation== | ==The Simulation== | ||
| − | Photons with a Bremsstrahlung energy distribution are incident upon 64 4 mm dia. thorium cylinders with 1 cm center to center spacing. Photofission neutrons were simulated using the MCNPX ACE model, since photofission cross section libraries do not exist for thorium. Upon the creation of a neutron, its initial direction of travel is logged and compared with its direction of travel when it leaves the simulation area. | + | Photons with a Bremsstrahlung energy distribution are incident upon 64 4 mm dia. thorium cylinders with 1 cm center to center spacing, which can be seen in the neutron flux plot below. Photofission neutrons were simulated using the MCNPX ACE model, since photofission cross section libraries do not exist for thorium. Upon the creation of a neutron, its initial direction of travel is logged and compared with its direction of travel when it leaves the simulation area. |
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[[File:Neutronflux.png|500 px|thumb|Prompt neutron flux from photofission]] | [[File:Neutronflux.png|500 px|thumb|Prompt neutron flux from photofission]] | ||
Revision as of 01:23, 29 January 2016
The Simulation
Photons with a Bremsstrahlung energy distribution are incident upon 64 4 mm dia. thorium cylinders with 1 cm center to center spacing, which can be seen in the neutron flux plot below. Photofission neutrons were simulated using the MCNPX ACE model, since photofission cross section libraries do not exist for thorium. Upon the creation of a neutron, its initial direction of travel is logged and compared with its direction of travel when it leaves the simulation area.
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