NUCLEAR REACTIONS IN ASTROPHYSICS
Journal Title: Eurasian journal of physics and functional materials - Year 2017, Vol 1, Issue 2
Abstract
This work is an attempt to present some problems on the evolution of the Universe: the nucleosynthesis and cosmochronology from the standpoint of physics of particles and nuclei, in particular with the use of the lat est results, obtained by means of radioactive nuclear beams. The comparison is made between the processes taking place in the Universe and the mechanisms of for mation and decay of nuclei, as well as of their interaction at different energies. Examples are given to show the capabilities of nuclear physics methods for studying cosmic objects and properties of the Universe. The results of investigations in nuclear reactions, induced by radioactive nuclear beams, make it possible to analyze the nucleosynthesis scenario in the region of light elements in a new manner.
Authors and Affiliations
Yu. E. Penionzhkevich
Exotic nuclides at the reactor pik: pitrap project
The PITRAP-project for mass measurements of exotic nuclides is based on the use of high flux-reactor PIK and a high precision Penning trap mass spectrometry. This combination gives a synergy in exploration of different p...
The nature of luminescence of KI and KI-Na crystals at low temperature deformation after natural decrease in the symmetry of the lattice
The X-ray luminescence spectra at low temperature (90K) uniaxial deformation were researched for KI and KI-Na crystals, that were stored for more than 10 years. The following regularities were observed: firstly, the inte...
Influence of structural defects in silicon on formation of photosensitive heterostructures Mn4Si7-Si-Mn4Si7 and Mn4Si7-Si-M
The paper considers the influence of a transition amorphous layer at the interface between the higher manganese silicide (HMS) Mn 4 Si 7 and silicon doped with manganese (Si ) on the photoelectric properties of heterostr...
Evaporation and thermal stresses in molybdenum irradiated by electrons
Plasma disruption in the thermonuclear facility leads to a release of large energy flows to the chamber wall. The pulse duration is 10-6 -10-4 s, energy fluxes are of the order of 108 -1011 Wm-2 . High temperature of the...
THE FIRST IDENTIFICATION OF THE PROTON HALO IN THE EXCITED STATE OF 13N
We demonstrate that the radii of excited nuclear states can be estimated using the (3He,t) charge-exchange reaction and relying on the modiļ¬ed diffraction model.The radius of the 13N excited state with an excitation ener...