Conceptual design for a new heterogeneous 241Am-9Be neutron source assembly using SOURCES4C-MCNPX hybrid simulations; Applied Radiation and Isotopes; Vol. 153
| Parent link: | Applied Radiation and Isotopes Vol. 153.— 2019.— [108811, 8 p.] |
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| Diğer Yazarlar: | , |
| Özet: | Title screen In this study, an approach to simulate a novel variable-yield heterogeneous ²⁴¹Am-⁹Be was proposed with a hybrid use of SOURCES4C and MCNPX codes, and its energy spectrum and neutron emission yield were simulated. In these simulations, the energy spectra of the alpha particles emitted from the americium source and the neutrons produced within the beryllium and oxygen contents as a result of⁹Be(α,n) and ¹⁷'¹⁸O(α,n) reactions were calculated with SOURCES4C whilst the neutron transport from neutron production points to the space outside the source assembly were performed with the MCNPX code. The neutron energy spectrum and neutron emission yield for two different configurations of single-rod and multi-rod sources (i.e., americium or americium oxide rods in beryllium medium) were compared to a source of homogeneous americium (or its oxides) and beryllium mixture. The proposed heterogeneous geometry was aimed to provide a neutron source with a variable neutron yield, easy-to-shut down and easy-to-waste process features. The results confirmed that the homogeneous source represented the largest neutron yield compared to single- and multi-rod geometries. However, the neutron yield in heterogenous geometry could be altered by varying the number of americium (or americium oxide) rods to reach the desired neutron yield. Режим доступа: по договору с организацией-держателем ресурса |
| Dil: | İngilizce |
| Baskı/Yayın Bilgisi: |
2019
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| Online Erişim: | https://doi.org/10.1016/j.apradiso.2019.108811 |
| Materyal Türü: | Elektronik Kitap Bölümü |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663546 |
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| 200 | 1 | |a Conceptual design for a new heterogeneous 241Am-9Be neutron source assembly using SOURCES4C-MCNPX hybrid simulations |f N. Ghal-Eh, F. Rahmani, S. V. Bedenko | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 330 | |a In this study, an approach to simulate a novel variable-yield heterogeneous ²⁴¹Am-⁹Be was proposed with a hybrid use of SOURCES4C and MCNPX codes, and its energy spectrum and neutron emission yield were simulated. In these simulations, the energy spectra of the alpha particles emitted from the americium source and the neutrons produced within the beryllium and oxygen contents as a result of⁹Be(α,n) and ¹⁷'¹⁸O(α,n) reactions were calculated with SOURCES4C whilst the neutron transport from neutron production points to the space outside the source assembly were performed with the MCNPX code. The neutron energy spectrum and neutron emission yield for two different configurations of single-rod and multi-rod sources (i.e., americium or americium oxide rods in beryllium medium) were compared to a source of homogeneous americium (or its oxides) and beryllium mixture. The proposed heterogeneous geometry was aimed to provide a neutron source with a variable neutron yield, easy-to-shut down and easy-to-waste process features. The results confirmed that the homogeneous source represented the largest neutron yield compared to single- and multi-rod geometries. However, the neutron yield in heterogenous geometry could be altered by varying the number of americium (or americium oxide) rods to reach the desired neutron yield. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Applied Radiation and Isotopes | ||
| 463 | |t Vol. 153 |v [108811, 8 p.] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a neutron source assembly | |
| 610 | 1 | |a (α,n)-reaction | |
| 610 | 1 | |a neutron yield | |
| 610 | 1 | |a energy spectrum | |
| 610 | 1 | |a 241Am-9Be | |
| 610 | 1 | |a источник нейтронов | |
| 610 | 1 | |a неоднородная структура | |
| 610 | 1 | |a энергетический спектр | |
| 610 | 1 | |a выход нейтронов | |
| 700 | 1 | |a Ghal-Eh |b N. |g Nima | |
| 701 | 1 | |a Rahmani |b F. |g Faezeh | |
| 701 | 1 | |a Bedenko |b S. V. |c physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences |f 1980- |g Sergey Vladimirovich |3 (RuTPU)RU\TPU\pers\30831 |9 15078 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа ядерных технологий |b Отделение ядерно-топливного цикла |3 (RuTPU)RU\TPU\col\23554 |
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| 856 | 4 | |u https://doi.org/10.1016/j.apradiso.2019.108811 | |
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