Properties of Neutron Noise Induced by Localized Perturbations in an SFR
Investigation of the properties of neutron noise induced by localized perturbations in a sodium-cooled fast reactor has been performed using a multigroup neutron noise simulator. Three representations of the noise source associated with the perturbations of absorption, fission, and scattering cross...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2015/140979 |
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| _version_ | 1832549339569848320 |
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| author | Hoai-Nam Tran |
| author_facet | Hoai-Nam Tran |
| author_sort | Hoai-Nam Tran |
| collection | DOAJ |
| description | Investigation of the properties of neutron noise induced by localized perturbations in a sodium-cooled fast reactor has been performed using a multigroup neutron noise simulator. Three representations of the noise source associated with the perturbations of absorption, fission, and scattering cross sections, respectively, were assumed to be located at the first fuel ring around the central assembly. The energy- and space-dependent noise, that is, the amplitude and the phase, was calculated in a wide range of frequencies, for example, 0.1–100 Hz. The results show that in the important energy range (>1.0 keV) where the noise amplitude is significant the phase is almost constant with energy at the calculated frequencies despite the source types. At low frequencies, the variation of the phase is negligibly small at a large distance from the source. The perturbation in several fast groups has a significant contribution and dominates the amplitude and the phase of the induced noise. |
| format | Article |
| id | doaj-art-e0c3bc15d3134dc48d383ebe7f4ff3ce |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-e0c3bc15d3134dc48d383ebe7f4ff3ce2025-02-03T06:11:33ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832015-01-01201510.1155/2015/140979140979Properties of Neutron Noise Induced by Localized Perturbations in an SFRHoai-Nam Tran0Institute of Research and Development, Duy Tan University, K7/25 Quang Trung, Da Nang 550000, VietnamInvestigation of the properties of neutron noise induced by localized perturbations in a sodium-cooled fast reactor has been performed using a multigroup neutron noise simulator. Three representations of the noise source associated with the perturbations of absorption, fission, and scattering cross sections, respectively, were assumed to be located at the first fuel ring around the central assembly. The energy- and space-dependent noise, that is, the amplitude and the phase, was calculated in a wide range of frequencies, for example, 0.1–100 Hz. The results show that in the important energy range (>1.0 keV) where the noise amplitude is significant the phase is almost constant with energy at the calculated frequencies despite the source types. At low frequencies, the variation of the phase is negligibly small at a large distance from the source. The perturbation in several fast groups has a significant contribution and dominates the amplitude and the phase of the induced noise.http://dx.doi.org/10.1155/2015/140979 |
| spellingShingle | Hoai-Nam Tran Properties of Neutron Noise Induced by Localized Perturbations in an SFR Science and Technology of Nuclear Installations |
| title | Properties of Neutron Noise Induced by Localized Perturbations in an SFR |
| title_full | Properties of Neutron Noise Induced by Localized Perturbations in an SFR |
| title_fullStr | Properties of Neutron Noise Induced by Localized Perturbations in an SFR |
| title_full_unstemmed | Properties of Neutron Noise Induced by Localized Perturbations in an SFR |
| title_short | Properties of Neutron Noise Induced by Localized Perturbations in an SFR |
| title_sort | properties of neutron noise induced by localized perturbations in an sfr |
| url | http://dx.doi.org/10.1155/2015/140979 |
| work_keys_str_mv | AT hoainamtran propertiesofneutronnoiseinducedbylocalizedperturbationsinansfr |