Izvestiya of Saratov University.
ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)

Физика атомного ядра и элементарных частиц

Neutron position for beta (β-) decay and neutron emission

The current study is about the structure of 17B, which has been investigated by the Microscopic Cluster Model. The binding energy and neutron position of two valence neutrons of Beta-decay and neutron emission have been calculated. A cluster configuration of the Halo nucleus inspired me to consider all radioisotopes have cluster configuration before the decay process. The study has considered a deformation of the core as a high influence on the binding of the valence neutrons.


Рассмотрен вариант реализации идей П. Дирака относительно ограниченности количества фарадеевских силовых линий и учета конечности размеров микрочастиц в физической теории. Показано, что в рамках классического подхода учет ограниченности количества фарадеевских силовых линий открывает дополнительные возможности в описании и характеристике физического поля и связанных с ним явлений. Показано, что появляется возможность простым способом получать выражение для описания дискретного излучения атома, которое полностью согласуется с эмпирическим соотношением Бальмера.

Research of the Possibility of Freezing Some Degrees of Freedom of the System in the Calculation of the Collision Process of Atomic Nuclei

Background and Objectives: A large number of theoretical and experimental papers have been devoted to the study of the fusionfission reaction of heavy ions. This is primarily due to the fact that these reactions allow us to obtain superheavy nuclei or exotic isotopes that lie far from the beta-stability line. To describe these reactions, you must be able to describe the collision process of the initial nuclei. Moreover, the accuracy of the entrance channel description affects the quality of all subsequent modeling results.


В настоящей работе рассматривается процесс столкновения атомных ядер в реакциях горячего синтеза 36S+238U и 64Ni+238U. Для моделирования данного процесса используется динамическая стохастическая модель, в которой учитывается оболочечная структура сталкивающихся ядер и их взаимная ориентация в пространстве. В работе обсуждается вопрос о возможности замораживания части степеней свободы системы.

Effect of Secondary Particles with High Linear Energy Transfer on Photon Beam Quality Factor

The energy dependence is investigated for a monoenergetic photon radiation quality factor with energies up to 40 MeV, while passing through a thin layer. The conditions of irradiation simulate radiobiological experiments to determine the relative biological eectiveness. The quality factor is calculated on the basis of data on linear energy transfer of all the particles in the irradiated layer, which are calculated using the Monte–Carlo method using GEANT4 code.

Calculation and Approximation of Radial Dose Function of Iridium Sources

Background and Objectives: The purpose of this paper is to investigate optimal fitting parameters for approximating radial dose function of Iridium sources. Calculations were performed using written by authors source code based on GEANT4 library package designed to simulate particle transport processes using Monte–Carlo method. Results: Following parameters of the source were determined: dose rate constant, radial dose function and anisotropy function. Obtained satisfactory coherence with other researchers’ data.

Minimal Quark-Lepton Symmetry Model and Its Manifestations at Low Energies

Background and Objectives: The four color symmetry of quarks and leptons predicts scalar leptoquarks along with vector leptoquarks. If the scale of the violation of four-color symmetry is associated with the masses of vector leptoquarks and, as recently shown, can be about 100 TeV, the mass of scalar leptoquarks can be much smaller. Numerical values of additional fermionic mixing matrices were obtained in the study of restrictions on the mass of vector leptoquarks from leptonic decays KL0 and B0, BS0 bosons.