Monte carlo study of coulombic criticality in polyelectrolytes.

Monte Carlo study of titration of linear polyelectrolytes

Critical parameters of the restricted primitive model

The critical parameters for the restricted primitive model of electrolyte solutions were determined from extensive grand canonical Monte Carlo simulations combined with mixed-field finite-size scaling. The fine-lattice discretization method was used for the calculations, with Ewald summation of the long-range coulombic forces. Ising criticality and no pressure mixing were assumed in the finite-...

Atomistic simulations of the effect of Coulombic interactions on carrier fluctuations in doped silicon

Carrier distributions associated with point charges in silicon are calculated via the quantum perturbation method and used to determine Coulombic interactions between charged defects in the presence of carrier screening. The resulting interactions are used in kinetic lattice Monte Carlo simulations of defect-mediated diffusion to study dopant redistribution and associated variations in carrier ...

Wielandt Acceleration for Mcnp5 Monte Carlo Eigenvalue Calculations

Monte Carlo criticality calculations use the power iteration method to determine the eigenvalue (keff) and eigenfunction (fission source distribution) of the fundamental mode. A recently proposed method for accelerating convergence of the Monte Carlo power iteration using Wielandt’s method has been implemented in a test version of MCNP5. The method is shown to provide dramatic improvements in c...

Benchmarking Monte Carlo Codes for Criticality Safety Using Subcritical Measurements

Monte Carlo codes that are used for criticality safety evaluations are typically validated using critical experiments in which the neutron multiplication factor is unity. However, the conditions for most ssile material operations do not coincide to those of the critical experiments. This paper demonstrates that Monte Carlo methods and nuclear data can be validated using subcritical measurements...