Artículo
A Segmented Total Energy Detector (sTED) optimized for (n, ) cross-section measurements at n_TOF EAR2
Autor/es | Alcayne, V.
Cano-Ott, D. Garcia, J. González-Romero, E. Martínez, T. Pérez de Rada, A. Plaza, J. Sánchez-Caballero, A. Balibrea Correa, J. Domingo-Pardo, C. Lerendegui Marco, Jorge n_TOF Collaboration (Autoría grupal) Cortés Giraldo, Miguel Antonio Guerrero Sánchez, Carlos Pérez Maroto, Pablo Quesada Molina, José Manuel |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2024-04 |
Fecha de depósito | 2024-03-01 |
Publicado en |
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Resumen | The neutron time-of-flight facility n_TOF at CERN is a spallation source dedicated to measurements of neutron-induced reaction cross-sections of interest in nuclear technologies, astrophysics, and other applications. Since ... The neutron time-of-flight facility n_TOF at CERN is a spallation source dedicated to measurements of neutron-induced reaction cross-sections of interest in nuclear technologies, astrophysics, and other applications. Since 2014, Experimental ARea 2 (EAR2) is operational and delivers a neutron fluence of neutrons per nominal proton pulse, which is 50 times higher than the one of Experimental ARea 1 (EAR1) of neutrons per pulse. The high neutron flux at EAR2 results in high counting rates in the detectors that challenged the previously existing capture detection systems. For this reason, a Segmented Total Energy Detector (sTED) has been developed to overcome the limitations in the detector’s response, by reducing the active volume per module and by using a photo-multiplier (PMT) optimized for high counting rates. This paper presents the main characteristics of the sTED, including energy and time resolution, response to -rays, and provides as well details of the use of the Pulse Height Weighting Technique (PHWT) with this detector. The sTED has been validated to perform neutron-capture cross-section measurements in EAR2 in the neutron energy range from thermal up to at least 400 keV. The detector has already been successfully used in several measurements at n_TOF EAR2. |
Agencias financiadoras | Ministerio de Ciencia e Innovación (MICIN). España Agencia Estatal de Investigación. España European Union (UE). H2020 |
Identificador del proyecto | PGC2018-096717-B-C21
847552 |
Cita | Alcayne, V., Cano-Ott, D., Garcia, J., González-Romero, E., Martínez, T., Pérez de Rada, A.,...,Quesada Molina, J.M. (2024). A Segmented Total Energy Detector (sTED) optimized for (n, ) cross-section measurements at n_TOF EAR2. Radiation Physics and Chemistry, 217, 111525. https://doi.org/10.1016/j.radphyschem.2024.111525. |
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