Measurement of the prompt fission y -rays from slow neutron-induced fission of 235 U with STEFF
The average energy and multiplicity of prompt y -rays from slow neutron-induced fission of 235 U have been measured using the STEFF spectrometer at the neutron time-of-flight facility n_TOF. The individual responses from 11 NaI scintillators were corrected for multiple y -ray interactions, prompt fi...
| Autores: | , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/405892 |
| Acceso en línea: | https://hdl.handle.net/2117/405892 https://dx.doi.org/10.1140/epja/s10050-024-01277-8 |
| Access Level: | acceso abierto |
| Palabra clave: | Thermal neutrons Espectrometria de masses Gamma ray spectrometry Neutrons tèrmics Mass spectrometry Espectrometria de raigs gamma Àrees temàtiques de la UPC::Física Àrees temàtiques de la UPC::Energies::Energia nuclear |
| Sumario: | The average energy and multiplicity of prompt y -rays from slow neutron-induced fission of 235 U have been measured using the STEFF spectrometer at the neutron time-of-flight facility n_TOF. The individual responses from 11 NaI scintillators were corrected for multiple y -ray interactions, prompt fission neutrons and background counts before being deconvolved to estimate the emitted spectrum of prompt fission y -rays. The results give an average y -ray energy ¯Ey of 1.71(5) MeV and multiplicity ¯vy of 2.66(18) considering y -rays emitted within the energy range 0.8–6.8 MeV. The n_TOF data has a slightly larger ¯Ey and smaller ¯vy than other recent measurements, however the product of the two is in agreement within quoted uncertainties. |
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