Design of reduced size long counter with flat response function from few keV to 20 MeV
In this study, a reduced size neutron long counter with improved response function was designed using SuperMC simulation code. The main parts of the reduced size long counter are 3He proportional counter, cylindrical moderators made of polyethylene, chromium metal converter, neutron absorbe...
| 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/1451-3994/2016/1451-39941604361M.pdf |
| _version_ | 1819029324132515840 |
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| author | Mazunga Mohamed JI Xiang Li Taosheng Li Yanan |
| author_facet | Mazunga Mohamed JI Xiang Li Taosheng Li Yanan |
| author_sort | Mazunga Mohamed |
| collection | DOAJ |
| description | In this study, a reduced size neutron long counter with improved response
function was designed using SuperMC simulation code. The main parts of the
reduced size long counter are 3He proportional counter, cylindrical
moderators made of polyethylene, chromium metal converter, neutron absorber
material and outer aluminum cover. A 1.5 cm thick layer of chromium metal was
embedded into the hydrogen-rich moderator to enhance response of the long
counter at high neutron energies. The radius and length of the long counter
was reduced to 15 cm and 35 cm, respectively. In this design we managed to
obtain a flat response function from a few keV to 20 MeV energy range. The
angular response function, determined at 0.5 MeV and 14 MeV neutron energies,
confirmed that the reduced size long counter designed in this study is not
significantly affected by in-scattered neutrons. The reduced size long
counter is suitable for use as a standard transfer instrument for monitoring
neutron fluence in mono-energetic neutron fields. |
| first_indexed | 2024-12-21T06:12:27Z |
| format | Article |
| id | doaj.art-e3dbe65a79414ec39422c4810c9537ab |
| institution | Directory Open Access Journal |
| issn | 1451-3994 1452-8185 |
| language | English |
| last_indexed | 2024-12-21T06:12:27Z |
| publishDate | 2016-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj.art-e3dbe65a79414ec39422c4810c9537ab2022-12-21T19:13:31ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39941452-81852016-01-0131436136510.2298/NTRP1604361M1451-39941604361MDesign of reduced size long counter with flat response function from few keV to 20 MeVMazunga Mohamed0JI Xiang1Li Taosheng2Li Yanan3University of Science and Technology of China, School of Nuclear Science and Technology, Hefei, Anhui, China + AF Chinese Academy of Sciences, Institute of Nuclear Energy Safety Technology, Key Laboratory of Neutronics and Radiation Safety, Hefei, Anhui, Chinese Academy of Sciences, Institute of Nuclear Energy Safety Technology, Key Laboratory of Neutronics and Radiation Safety, Hefei, Anhui, ChinaChinese Academy of Sciences, Institute of Nuclear Energy Safety Technology, Key Laboratory of Neutronics and Radiation Safety, Hefei, Anhui, ChinaChinese Academy of Sciences, Institute of Nuclear Energy Safety Technology, Key Laboratory of Neutronics and Radiation Safety, Hefei, Anhui, ChinaIn this study, a reduced size neutron long counter with improved response function was designed using SuperMC simulation code. The main parts of the reduced size long counter are 3He proportional counter, cylindrical moderators made of polyethylene, chromium metal converter, neutron absorber material and outer aluminum cover. A 1.5 cm thick layer of chromium metal was embedded into the hydrogen-rich moderator to enhance response of the long counter at high neutron energies. The radius and length of the long counter was reduced to 15 cm and 35 cm, respectively. In this design we managed to obtain a flat response function from a few keV to 20 MeV energy range. The angular response function, determined at 0.5 MeV and 14 MeV neutron energies, confirmed that the reduced size long counter designed in this study is not significantly affected by in-scattered neutrons. The reduced size long counter is suitable for use as a standard transfer instrument for monitoring neutron fluence in mono-energetic neutron fields.http://www.doiserbia.nb.rs/img/doi/1451-3994/2016/1451-39941604361M.pdfneutron detectorlong counterresponse functionneutron fluenceSuperMC |
| spellingShingle | Mazunga Mohamed JI Xiang Li Taosheng Li Yanan Design of reduced size long counter with flat response function from few keV to 20 MeV Nuclear Technology and Radiation Protection neutron detector long counter response function neutron fluence SuperMC |
| title | Design of reduced size long counter with flat response function from few keV to 20 MeV |
| title_full | Design of reduced size long counter with flat response function from few keV to 20 MeV |
| title_fullStr | Design of reduced size long counter with flat response function from few keV to 20 MeV |
| title_full_unstemmed | Design of reduced size long counter with flat response function from few keV to 20 MeV |
| title_short | Design of reduced size long counter with flat response function from few keV to 20 MeV |
| title_sort | design of reduced size long counter with flat response function from few kev to 20 mev |
| topic | neutron detector long counter response function neutron fluence SuperMC |
| url | http://www.doiserbia.nb.rs/img/doi/1451-3994/2016/1451-39941604361M.pdf |
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