Artículo
On the role of secondary pions in spallation targets
Autor/es | Cortés Giraldo, Miguel Antonio
Mancusi, Davide Lo Meo, Sergio Colonna, Nicola Boudard, Alain Cugnon, Joseph David, Jean-Christophe Leray, Sylvie Lerendegui Marco, Jorge Massimi, C. Vlachoudis, V. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2017 |
Fecha de depósito | 2017-09-27 |
Publicado en |
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Resumen | We use particle-transport simulations to show that secondary pions play a crucial role for the development of the hadronic cascade and therefore for the production of neutrons and photons from thick spallation targets. In ... We use particle-transport simulations to show that secondary pions play a crucial role for the development of the hadronic cascade and therefore for the production of neutrons and photons from thick spallation targets. In particular, for the n_TOF lead spallation target, irradiated with 20 GeV/c protons, neutral pions are involved in the production of ∼90% of the high-energy photons; charged pions participate in ∼40% of the integral neutron yield. Nevertheless, photon and neutron yields are shown to be relatively insensitive to large changes of the average pion multiplicity in the individual spallation reactions. We characterize this robustness as a peculiar property of hadronic cascades in thick targets. |
Cita | Cortés Giraldo, M.A., Mancusi, D., Lo Meo, S., Colonna, N., Boudard, A., Cugnon, J.,...,Vlachoudis, V. (2017). On the role of secondary pions in spallation targets. European Physical Journal A: Hadrons and Nuclei, 53 (80), 1-16. |
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