Comparison of photoneutron yield from beryllium irradiated with bremsstrahlung radiation of different peak energy

A data-based photonuclear reaction model for GEANT4

“…6. The neutron yields calculated by using G4 and G4DPN are compared with the experimental data [55]. Clearly the photoneutron yields from the G4DPN agree well with those from the experimental data regardless of the thickness of the Be target.…”

“…This benchmark simulation shows that G4DPN gives reasonable results for photoneutron production calculations in the GDR region thereby justifying the validity of the model. [55]. The filled triangles with a dotted line and the filled circles with a solid line represent the photoneutron yields obtained from GEANT4 simulations using the G4EmExtraPhysics and G4DPN, respectively.…”

“…A detailed experimental setup and parameters can be found in Refs. [55][56][57]. The photoneutron yields with respect to the thickness of the Be target are plotted in Fig.…”

Effective atomic number of selected construction materials using gamma backscattering technique

“…The MCNP4A (Briesmeister, 1993) radiation transport code is applied to perform the calculations in this work and it is a general purpose, 3D general geometry, time-dependent code, which is used to calculate coupled neutron-photon-electron transport in bulk samples. As many as 15,00,000 histories were run in order to produce reliable confidence intervals (Eshwarappa et al, 2007). The MCNP plot of the target geometry is shown in Fig.…”

Further Evaluation of the Neutron Resonance Transmission Analysis (NRTA) Technique for Assaying Plutonium in Spent Fuel

“…For this effort a linear electron accelerator was chosen due to the large published literature database. Three lowenergy (<10 MeV) electron linear accelerator systems were selected [20,21,22]. These three systems were modeled using MCNP and neutron flux, spectra, and emission rates calculated and compared to the published results.…”