Ionization and scintillation of nuclear recoils in gaseous xenon

Ionization and scintillation produced by nuclear recoils in gaseous xenon at approximately 14 bar have been simultaneously observed in an electroluminescent time projection chamber. Neutrons from radioisotope \(\alpha\)-Be neutron sources were used to induce xenon nuclear recoils, and the observed r...

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Published in:arXiv.org 2014-09
Main Authors: Renner, J, Gehman, V M, Goldschmidt, A, Matis, H S, Miller, T, Nakajima, Y, Nygren, D, Oliveira, C A B, Shuman, D, Álvarez, V, Borges, F I G, Cárcel, S, Castel, J, Cebrián, S, Cervera, A, Conde, C A N, Dafni, T, T H V T Dias, Díaz, J, Esteve, R, Evtoukhovitch, P, Fernandes, L M P, Ferrario, P, Ferreira, A L, Freitas, E D C, Gil, A, Gómez, H, Gómez-Cadenas, J J, González-Díaz, D, Gutiérrez, R M, Hauptman, J, Hernando Morata, J A, Herrera, D C, Iguaz, F J, Irastorza, I G, Jinete, M A, Labarga, L, Laing, A, Liubarsky, I, Lopes, J A M, Lorca, D, Losada, M, Luzón, G, Marí, A, Martín-Albo, J, Martínez, A, Moiseenko, A, Monrabal, F, Monserrate, M, Monteiro, C M B, Mora, F J, Moutinho, L M, J Muñoz Vidal, H Natal da Luz, Navarro, G, Nebot-Guinot, M, Palma, R, Pérez, J, Pérez Aparicio, J L, Ripoll, L, Rodríguez, A, Rodríguez, J, Santos, F P, J M F dos Santos, Seguí, L, Serra, L, Simón, A, Sofka, C, Sorel, M, Toledo, J F, Tomás, A, Torrent, J, Tsamalaidze, Z, J F C A Veloso, Villar, J A, Webb, R C, White, J, Yahlali, N, NEXT Collaboration
Format: Article
Language:English
Subjects:
Dark matter
Electroluminescence
Ionization
Neutron sources
Neutrons
Radiation counters
Radioisotopes
Recoil
Scintillation
Vapor phases
Xenon
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Summary:Ionization and scintillation produced by nuclear recoils in gaseous xenon at approximately 14 bar have been simultaneously observed in an electroluminescent time projection chamber. Neutrons from radioisotope \(\alpha\)-Be neutron sources were used to induce xenon nuclear recoils, and the observed recoil spectra were compared to a detailed Monte Carlo employing estimated ionization and scintillation yields for nuclear recoils. The ability to discriminate between electronic and nuclear recoils using the ratio of ionization to primary scintillation is demonstrated. These results encourage further investigation on the use of xenon in the gas phase as a detector medium in dark matter direct detection experiments.
ISSN:2331-8422
DOI:10.48550/arxiv.1409.2853