Difference between revisions of "Neutron pinball"

From New IAC Wiki
Jump to navigation Jump to search
Line 1: Line 1:
 
==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 (see 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.  
+
Photons with a Bremsstrahlung energy distribution are incident upon 64 4 mm dia. thorium cylinders with 1 cm center to center spacing (see the neutron flux plot below). Photofission neutrons were simulated using the MCNPX ACE model.  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. The target configuration pictured below is surrounded by a 100 cm radius cylinder of air (axis going into the page).  
  
 
[[File:Neutronflux.png|500 px|thumb|left|Prompt neutron flux from photofission]]
 
[[File:Neutronflux.png|500 px|thumb|left|Prompt neutron flux from photofission]]

Revision as of 01:27, 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 (see the neutron flux plot below). Photofission neutrons were simulated using the MCNPX ACE model. 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. The target configuration pictured below is surrounded by a 100 cm radius cylinder of air (axis going into the page).

Prompt neutron flux from photofission

232




Go back Elastic scattering