| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1875751 | Applied Radiation and Isotopes | 2016 | 7 Pages |
•Evaluation of fan-beam combined neutron and photon tomography.•Neutron and photon transport was simulated using MCNP5.•Results show that this imaging technique reveals both shape and material composition of objects.
The application of combined neutron-photon tomography for 3D imaging is examined using MCNP5 simulations for objects of simple shapes and different materials. Two-dimensional transmission projections were simulated for fan-beam scans using 2.5 MeV deuterium-deuterium and 14 MeV deuterium-tritium neutron sources, and high-energy X-ray sources, such as 1 MeV, 6 MeV and 9 MeV. Photons enable assessment of electron density and related mass density, neutrons aid in estimating the product of density and material-specific microscopic cross section- the ratio between the two provides the composition, while CT allows shape evaluation. Using a developed imaging technique, objects and their material compositions have been visualized.
