Recent industry interest in neutron-induced soft errors has focused primarily on data corruption in memory devices. However, neutron-susceptible memory elements are used for configuration storage in SRAM-based FPGAs. There is a significant and growing risk of functional failure in SRAM-based FPGAs due to the corruption of configuration data. Detection and correction of these configuration upset...

The 1MW pool-type Portuguese research reactor (RPI) was converted from using highly enriched uranium (HEU) to using low enriched uranium (LEU) fuel in September 2007. Although the new LEU core has the same number of fuel assemblies as the first HEU core, it has three assemblies less than the last HEU core and also has a different arrangement of the beryllium reflectors. Therefore, the primary i...

In proto-neutron stars with strong magnetic fields, the neutrino-nucleon scattering/absorption cross sections depend asymmetrically on the direction of neutrino momentum with respect to the magnetic field axis, a manifestation of parity violation in weak interactions. We develop the moment formalism of neutrino transport in the presence of such asymmetric neutrino opacities. For a given neutrin...

In this paper, we used a neutron diffusion hybrid equation with an external neutron source to calculate nuclear power factors in each fuel element in the reactor core. We used the nodal expansion method to obtain the neutron flux for a given control rods bank position. The results were compared with results obtained for eigenvalue problem near criticality condition and fixed source problem duri...

Two-dimensional neutronics calculations have been performed to determine the nuclear radiation environment at selected locations in the FIRE diagnostics penetrations and to assess the impact of streaming on average flux outside the port flange. The total neutron flux (integrated over all energies), the fast neutron flux (E > 0.1 MeV) and the total gamma flux were calculated at the front of the ...

introduction electron linear accelerator (linac) can be used for neutron production in boron neutron capture therapy (bnct). bnct is an external radiotherapeutic method for the treatment of some cancers. in this study, varian 2300 c/d linac was simulated as an electron accelerator-based photoneutron source to provide a suitable neutron flux for bnct. materials and methods photoneutron sources w...