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Regular version of the site

Article

Attenuation of Photon and Neutron Radiation Using Iron-Magnetite-Serpentinite Radiation-Protective Composite

Inorganic Materials: Applied Research. 2017. Vol. 8. No. 2. P. 275-278.
Yastrebinskii R. N., Bondarenko G.G., Pavlenko V. I.

In this paper the calculations for coefficients of weakening of both photon and neutron beams when the ones pass through the iron-magnet-serpentinit cement concrete (IMSCC) have been presented. IMSCC is using for biological protection of nuclear reactors. At the energies of photons in the range from 0.2 to 11 MeV the main contribution to weakening of beam gives Compton's effect. But at the photon energies more than 11 MeV the main contribution to weakening of beam gives effect of electron-positron couples formation. At an assessment of influence of fast neutrons, it has been shown that, despite the low density of hydrogen in the studied composite, a contribution of hydrogen to coefficient of weakening of a neutron stream was very important. It is connected with both a high concentration of hydrogen and the fact that at neutron irradiation the higher kinetic energy is transferred to light atomic nuclei than heavy ones.