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The NEXT White (NEW) detector

2018; Institute of Physics; Volume: 13; Issue: 12 Linguagem: Inglês

10.1088/1748-0221/13/12/p12010

1748-0221

F. Monrabal, J.J. Gómez-Cadenas, J.F. Toledo, A. Laing, V. Álvarez, J. M. Benlloch-Rodríguez, S. Cárcel, J.V. Carríon, R. Esteve, R. Felkai, V. Herrero, A. Martínez, M. Musti, M. Querol, J. Rodríguez, A. Simón, C. Sofka, J. Torrent, R. Webb, J. T. White, C. Adams, L. Arazi, C.D.R. Azevedo, K. Bailey, F.I.G.M. Borges, Alexandre M. P. Botas, S. Cebrián, C.A.N. Conde, J. Dı́az, M. Diesburg, J. Escada, A. F. M. Fernandes, L. M. P. Fernandes, P. Ferrario, A. L. Ferreira, E.D.C. Freitas, J. Generowicz, A. Goldschmidt, D. González-Díaz, R. Guénette, R.M. Gutiérrez, K. Hafidi, J. M. Hauptman, C. A. O. Henriques, A.I. Hernandez, J. A. Hernando Morata, S. Johnston, B. J. P. Jones, M. Kekic, L. Labarga, P. Lebrun, N. López-March, M. Losada, R. D. P. Mano, J. Martín-Albo, G. Martínez-Lema, A.D. McDonald, C.M.B. Monteiro, Francisco Mora, J. Muñoz Vidal, M. Nebot-Guinot, P. Novella, D. R. Nygren, B. Palmeiro, A. Para, J. Pérez, J. Renner, J. Repond, S. Riordan, L. Ripoll, L. Rogers, C. Romo-Luque, F.P. Santos, J.M.F. dos Santos, M. Sorel, T. Stiegler, J.F.C.A. Veloso, N. Yahlali,

Atomic and Subatomic Physics Research

Conceived to host 5 kg of xenon at a pressure of 15 bar in the fiducial volume, the NEXT- White (NEW) apparatus is currently the largest high pressure xenon gas TPC using electroluminescent amplification in the world. It is also a 1:2 scale model of the NEXT-100 detector scheduled to start searching for $\beta\beta 0\nu$ decays in 136Xe in 2019. Both detectors measure the energy of the event using a plane of photomultipliers located behind a transparent cathode. They can also reconstruct the trajectories of charged tracks in the dense gas of the TPC with the help of a plane of silicon photomultipliers located behind the anode. A sophisticated gas system, common to both detectors, allows the high gas purity needed to guarantee a long electron lifetime. NEXT-White has been operating since October 2017 at the Canfranc Underground Laboratory (LSC), in Spain. This paper describes the detector and associated infrastructures.