Design of a novel instrument for active neutron interrogation of artillery shells
Fig 5
Energy distribution of the integrated thermal neutrons at the centre of the unknown-object cavity for different moderation scenarios.
Two distributions are the result of simulations where the moderator volume is made up of polyethylene, with (red) and without (green) an artillery shell in the cavity. The other two distributions use Teflon in the moderator volume, with (brown) and without (blue) an artillery shell in the cavity.