Attenuation of photon and neutron radiation using iron–magnetite–serpentinite radiation-protective composite
- 作者: Yastrebinskii R.1, Bondarenko G.2, Pavlenko V.1
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隶属关系:
- Belgorod State Technological University
- National Research University Higher School of Economics
- 期: 卷 8, 编号 2 (2017)
- 页面: 275-278
- 栏目: Materials of Power Engineering and RadiationResistant Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/206329
- DOI: https://doi.org/10.1134/S207511331702023X
- ID: 206329
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详细
The attenuation coefficients of photon and neutron beams as they pass through the iron–magnetite–serpentinite cement concrete (IMSCC), which is used for biological protection of nuclear reactors, are calculated. Compton scattering makes the main contribution to attenuation of the beam at γ-photon energies lying in the range of 0.2–11 MeV, while at photon energies higher than 11 MeV the main contribution to attenuation of beam is made by the effect of formation of electron–positron couples. It is shown by assessing the influence of fast neutrons that, despite the low density of hydrogen in the composite under study, the contribution of hydrogen to the attenuation coefficient of the neutron flux is very important. It is connected both with the high hydrogen concentration and the fact that higher kinetic energy is transferred to light atomic nuclei than to heavy ones under neutron irradiation.
作者简介
R. Yastrebinskii
Belgorod State Technological University
编辑信件的主要联系方式.
Email: yrndo@mail.ru
俄罗斯联邦, Belgorod, 308112
G. Bondarenko
National Research University Higher School of Economics
Email: yrndo@mail.ru
俄罗斯联邦, Moscow, 101000
V. Pavlenko
Belgorod State Technological University
Email: yrndo@mail.ru
俄罗斯联邦, Belgorod, 308112