Attenuation of Neutron and Gamma Radiation by a Composite Material Based on Modified Titanium Hydride with a Varied Boron Content
| Autor: | R. N. Yastrebinskii |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Astrophysics::High Energy Astrophysical Phenomena Attenuation General Physics and Astronomy Titanium hydride chemistry.chemical_element 02 engineering and technology Boron carbide Radiation Neutron radiation 021001 nanoscience & nanotechnology 01 natural sciences Neutron temperature Condensed Matter::Materials Science chemistry.chemical_compound chemistry 0103 physical sciences Neutron Composite material 0210 nano-technology Boron |
| Zdroj: | Russian Physics Journal. 60:2164-2168 |
| ISSN: | 1573-9228 1064-8887 |
| DOI: | 10.1007/s11182-018-1341-6 |
| Popis: | The investigations on estimating the attenuation of capture gamma radiation by a composite neutron-shielding material based on modified titanium hydride and Portland cement with a varied amount of boron carbide are performed. The results of calculations demonstrate that an introduction of boron into this material enables significantly decreasing the thermal neutron flux density and hence the levels of capture gamma radiation. In particular, after introducing 1- 5 wt.% boron carbide into the material, the thermal neutron flux density on a 10 cm-thick layer is reduced by 11 to 176 factors, and the capture gamma dose rate – from 4 to 9 times, respectively. The difference in the degree of reduction in these functionals is attributed to the presence of capture gamma radiation in the epithermal region of the neutron spectrum. |
| Databáze: | OpenAIRE |
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