Time-dependent quantum models of the dynamics of neutron transfer reactions near the barrier

Time-dependent valence neutron wave functions were calculated for nucleus-nucleus collisions 6He + 197Au, 18O + 58Ni, 48Ca + 18O, 40,48Ca + 238U. Probabilities of the neutron transfer and near-barrier population of two-center levels were calculated. The energy dependence of the neutron transfer cross section in the 6He + 197Au reaction has been explained

Microscopic time-dependent analysis of neutrons transfers at low-energy nuclear reactions with spherical and deformed nuclei

Time-dependent Schrödinger equation is numerically solved by difference method for external neutrons of nuclei 6He, 18O, 48Са, 238U at their grazing collisions with energies in the vicinity of a Coulomb barrier. The spin-orbital interaction and Pauli's exclusion principle were taken into consideration during the solution

Coupling with two-center neutron states and two-surface collective excitations at fusion reactions in the vicinity of the Coulomb barrier

A clear physical interpretation of barrier distribution peaks and depressions is proposed. It is based on distance dependent vibration excitation energies near the barrier. Microscopic coupled channel equations with neutron rearrangement coupling were proposed and solved. They used distance dependent Q-values near the barrier. The satisfactory agreement between experimental data and calculation results is obtained for fusion cross sections in two reactions 18O+58Ni, 16O+60Ni in the vicinity of the Coulomb barrier

Parallel Implementation of Numerical Solution of Few-Body Problem Using Feynman’s Continual Integrals

Modern parallel computing algorithm has been applied to the solution of the few-body problem. The approach is based on Feynman’s continual integrals method implemented in C++ programming language using NVIDIA CUDA technology. A wide range of 3-body and 4-body bound systems has been considered including nuclei described as consisting of protons and neutrons (e.g., 3,4He) and nuclei described as consisting of clusters and nucleons (e.g., 6He). The correctness of the results was checked by the comparison with the exactly solvable 4-body oscillatory system and experimental data

Microscopic time-dependent analysis of neutrons transfers at low-energy nuclear reactions with spherical and deformed nuclei

Time-dependent Schrödinger equation is numerically solved by difference method for external neutrons of nuclei 6He, 18O, 48Са, 238U at their grazing collisions with energies in the vicinity of a Coulomb barrier. The spin-orbital interaction and Pauli's exclusion principle were taken into consideration during the solution

Synergy of Nuclear Data and Nuclear Theory Online

The paper describes the NRV web knowledge base on low-energy nuclear physics developed in the Joint Institute for Nuclear Research. The NRV knowledge base working through the Internet integrates a large amount of digitized experimental data on the properties of nuclei and nuclear reaction cross sections with a wide range of computational programs for modeling of nuclear properties and nuclear dynamics. Today, the NRV becomes a powerful instrument for nuclear physics research as well as for educational applications. Advantages of the functioning scheme of the knowledge base provide the synergy of coexistence of the experimental data and computational codes within one platform

Microwave installation for accelerating the process of salting the food products

This article contains a description of the developed installation for salting and heat treatment of raw meat, which allows accelerate the salting process due to electrophysical effects. To provide the population with quality products from small-sized meat raw materials with reduced energy consumption, it is necessary to create rational conditions for their processing, ensuring the intensification of production processes based on the use of non-traditional types of energy carriers, and in particular electromagnetic waves of ultrahigh frequency. When raw materials are introduced into the resonator chamber in the developed installation, a traveling component appears in the standing wave, which transfers energy from the source to the raw material, which ensures its heating