Nanocharacterization of Proton Radiation Damage on Magnetically Oriented Epoxy

Abstract: In this study we investigate the shielding effectiveness of a structural epoxy against high-energy proton radiation. To study the influence of material texture on its radiation shielding effectiveness we induced orientations in the epoxy using a high magnetic field of 15 T and exposed it to proton beams of energy 6-15 MeV. The microstructure of the samples was characterized using ESEM and AFM microscopy. The effect of the radiation on the mechanical properties of the epoxy samples such as modulus and hardness was measured using nanoindentation tests

Острая гемолитическая реакция после трансфузии эритроцитсодержащих компонентов крови: причины, профилактика, клинические случаи

The article concerns the problem of studying the causes of the development of hemolytic reactions after transfusion of erythrocyte-containing blood components. The ways of preventing hemolysis as a result of blood transfusions are considered. Clinical cases are described.Статья затрагивает проблему изучения причин развития гемолитических реакций после трансфузий эритроцитсодержащих компонентов крови. Рассмотрены пути предотвращения гемолиза в результате гемотрансфузий. Описаны клинические случаи

Isotopic effects in the

Angular distributions of the 7Li + 10B elastic and inelastic scattering were measured at the energy E lab (10B) = 51 MeV (21 MeV c.m.). These and previously measured 7Li + 10B elastic-scattering data known at the 7Li-beam energies 24 MeV (14.1 MeV c.m.) and 39 MeV (22.94 MeV c.m.) were analyzed within the optical model and coupled-reaction channels method to determine the energy dependence of the parameters of the scattering potential and find the difference of these parameters from that of 7Li + 11B scattering. It was found that the 7Li + 11B potential parameters fail to describe the 7Li + 10B scattering data. The biggest difference is observed between the depths of the imaginary potentials that describe these scatterings

Mechanism of the

Angular distributions of the 12C( 11B, 15N) 8Be reaction were measured at the energy E lab(11 B) = 49 MeV for the transitions to the ground and 2.94 MeV (2+) excited state of 8Be and to the ground and 5.270 MeV (5/2+) + 5.299 MeV (1/2+), 6.324 MeV (3/2-), 7.155 MeV (5/2+) + 7.301 MeV (3/2+), 7.567 MeV (7/2+) excited states of 15N. The data were analyzed by the coupled-reaction-channel method. The elastic, inelastic scattering and one- and two-step transfers were included in the coupling scheme. The data of the 12C( 11B, 8Be) 15N reaction at E cm = 9.4-17.8 MeV known from the literature, were also included in the analysis. The mechanism of the 12C( 11B, 15N) 8Be reaction and the optical-model potential parameters for the 15N + 8Be channel were deduced. The energy dependence of the optical-model parameters for the 15N + 8Be channel was obtained