Shielding efficiency of metal hydrides and borohydrides in fusion reactors
Mass attenuation coefficients, mean free paths and exposure buildup factors have been used to characterize the shielding efficiency of metal hydrides and borohydrides, with high density of hydrogen. Gamma ray exposure buildup factors were computed using five-parameter geometric progression...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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VINCA Institute of Nuclear Sciences
2016-01-01
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| Series: | Nuclear Technology and Radiation Protection |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-3994/2016/1451-39941604339S.pdf |
| _version_ | 1819152545643233280 |
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| author | Singh Vishvanath P. Badiger Nagappa M. Gerward Leif |
| author_facet | Singh Vishvanath P. Badiger Nagappa M. Gerward Leif |
| author_sort | Singh Vishvanath P. |
| collection | DOAJ |
| description | Mass attenuation coefficients, mean free paths and exposure buildup factors
have been used to characterize the shielding efficiency of metal hydrides and
borohydrides, with high density of hydrogen. Gamma ray exposure buildup
factors were computed using five-parameter geometric progression fitting at
energies 0.015 MeV to15 MeV, and for penetration depths up to 40 mean free
paths. Fast-neutron shielding efficiency has been characterized by the
effective neutron removal cross-section. It is shown that ZrH2 and VH2 are
very good shielding materials for gamma rays and fast neutrons due to their
suitable combination of low- and high-Z elements. The present work should be
useful for the selection and design of blankets and shielding, and for dose
evaluation for components in fusion reactors. |
| first_indexed | 2024-12-22T14:51:00Z |
| format | Article |
| id | doaj.art-416adc221fde4625b49ef350ea58595f |
| institution | Directory Open Access Journal |
| issn | 1451-3994 1452-8185 |
| language | English |
| last_indexed | 2024-12-22T14:51:00Z |
| publishDate | 2016-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-416adc221fde4625b49ef350ea58595f2022-12-21T18:22:20ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39941452-81852016-01-0131433934810.2298/NTRP1604339S1451-39941604339SShielding efficiency of metal hydrides and borohydrides in fusion reactorsSingh Vishvanath P.0Badiger Nagappa M.1Gerward Leif2Karnatak University, Department of Physics, Dharwad, IndiaKarnatak University, Department of Physics, Dharwad, IndiaTechnical University of Denmark, Department of Physics, Lyngby, DenmarkMass attenuation coefficients, mean free paths and exposure buildup factors have been used to characterize the shielding efficiency of metal hydrides and borohydrides, with high density of hydrogen. Gamma ray exposure buildup factors were computed using five-parameter geometric progression fitting at energies 0.015 MeV to15 MeV, and for penetration depths up to 40 mean free paths. Fast-neutron shielding efficiency has been characterized by the effective neutron removal cross-section. It is shown that ZrH2 and VH2 are very good shielding materials for gamma rays and fast neutrons due to their suitable combination of low- and high-Z elements. The present work should be useful for the selection and design of blankets and shielding, and for dose evaluation for components in fusion reactors.http://www.doiserbia.nb.rs/img/doi/1451-3994/2016/1451-39941604339S.pdfhydrideboron hydridebuildupshieldingfusion reactor |
| spellingShingle | Singh Vishvanath P. Badiger Nagappa M. Gerward Leif Shielding efficiency of metal hydrides and borohydrides in fusion reactors Nuclear Technology and Radiation Protection hydride boron hydride buildup shielding fusion reactor |
| title | Shielding efficiency of metal hydrides and borohydrides in fusion reactors |
| title_full | Shielding efficiency of metal hydrides and borohydrides in fusion reactors |
| title_fullStr | Shielding efficiency of metal hydrides and borohydrides in fusion reactors |
| title_full_unstemmed | Shielding efficiency of metal hydrides and borohydrides in fusion reactors |
| title_short | Shielding efficiency of metal hydrides and borohydrides in fusion reactors |
| title_sort | shielding efficiency of metal hydrides and borohydrides in fusion reactors |
| topic | hydride boron hydride buildup shielding fusion reactor |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2016/1451-39941604339S.pdf |
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