Ponencia
The neutron time-of-flight facility n TOF at CERN: Recent facility upgrades and detector developments
Autor/es | Domingo Pardo, C.
Aberle, Oliver Alcayne, V. Altieri, S. Amaducci, Simone Andrzejewski, J. Cortés Giraldo, Miguel Antonio Guerrero Sánchez, Carlos Lerendegui Marco, Jorge Pérez Maroto, Pablo Quesada Molina, José Manuel Zugec, P. n_TOF Collaboration (Autoría grupal) |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2023 |
Fecha de depósito | 2024-06-04 |
Publicado en |
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ISBN/ISSN | 1742-6588 1742-6596 |
Resumen | Based on an idea by Carlo Rubbia, the n TOF facility at CERN has been operating for over 20 years. It is a neutron spallation source, driven by the 20 GeV/c proton beam from the CERN PS accelerator. Neutrons in a very wide ... Based on an idea by Carlo Rubbia, the n TOF facility at CERN has been operating for over 20 years. It is a neutron spallation source, driven by the 20 GeV/c proton beam from the CERN PS accelerator. Neutrons in a very wide energy range (from GeV, down to sub-eV kinetic energy) are generated by a massive Lead spallation target feeding two experimental areas. EAR1, horizonal with respect to the proton beam direction is set at 185 meters from the spallation target. EAR2, on the vertical line from the spallation source, is placed at 20 m. Neutron energies for experiments are selected by the time-of-flight technique (hence the name n TOF), while the long flight paths ensure a very good energy resolution. Over one hundred experiments have been performed by the n TOF Collaboration at CERN, with applications ranging from nuclear astrophysics (synthesis of the heavy elements in stars, big bang nucleosynthesis, nuclear cosmo-chronology), to advanced nuclear technologies (nuclear data for applications, nuclear safety), as well as for basic nuclear science (reaction mechanisms, structure and decay of highly excited compound states). During the planned shutdown of the CERN accelerator complex between 2019 and 2021, the facility went through a substantial upgrade with a new target-moderator assembly, refurbishing of the neutron beam lines and experimental areas. An additional measuring and irradiation station (the NEAR Station) has been envisaged and its capabilities for performing material test studies and new physics opportunities are presently explored. An overview of the facility and of the activities performed at CERN is presented in this contribution, with a particular emphasis on the most relevant experiments for nuclear astrophysics. |
Agencias financiadoras | European Union (UE) Ministerio de Ciencia e Innovación (MICIN). España |
Identificador del proyecto | 681740
PID2019-104714GB-C21 FPA2017-83946-C2-1-P FIS2015-71688-ERC |
Cita | Domingo Pardo, C., Aberle, O., Alcayne, V., Altieri, S., Amaducci, S., Andrzejewski, J.,...,n_TOF Collaboration (Autoría grupal), (2023). The neutron time-of-flight facility n TOF at CERN: Recent facility upgrades and detector developments. En 28th International Nuclear Physics Conference, INPC 2022 (012150-), Cape Town, South Africa: IOP Publishing Ltd. |
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