Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment Academic Article uri icon

abstract

  • NEXT-DEMO is a large-scale prototype of the NEXT-100 detector, an electroluminescent time projection chamber that will search for the neutrinoless double beta decay of 136XE using 100-150 kg of enriched xenon gas. NEXT-DEMO was built to prove the expected performance of NEXT-100, namely, energy resolution better than 1% FWHM at 2.5 MeV and event topological reconstruction. In this paper we describe the prototype and its initial results. A resolution of 1.75% FWHM at 511 keV (which extrapolates to 0.8% FWHM at 2.5 MeV) was obtained at 10 bar pressure using a gamma-ray calibration source. Also, a basic study of the event topology along the longitudinal coordinate is presented, proving that it is possible to identify the distinct dE/dx of electron tracks in high-pressure xenon using an electroluminescence TPC. 2013 IOP Publishing Ltd and Sissa Medialab srl.

published proceedings

  • Journal of Instrumentation

altmetric score

  • 0.25

author list (cited authors)

  • lvarez, V., Borges, F., Crcel, S., Castel, J., Cebrin, S., Cervera, A., ... Yahlali, N.

citation count

  • 35

complete list of authors

  • Álvarez, V||Borges, FIG||Cárcel, S||Castel, J||Cebrián, S||Cervera, A||Conde, CAN||Dafni, T||Dias, THVT||Díaz, J||Egorov, M||Esteve, R||Evtoukhovitch, P||Fernandes, LMP||Ferrario, P||Ferreira, AL||Freitas, EDC||Gehman, VM||Gil, A||Goldschmidt, A||Gómez, H||Gómez-Cadenas, JJ||González-Díaz, D||Gutiérrez, RM||Hauptman, J||Morata, JA Hernando||Herrera, DC||Iguaz, FJ||Irastorza, IG||Jinete, MA||Labarga, L||Laing, A||Liubarsky, I||Lopes, JAM||Lorca, D||Losada, M||Luzón, G||Marí, A||Martín-Albo, J||Martínez, A||Miller, T||Moiseenko, A||Monrabal, F||Monteiro, CMB||Mora, FJ||Moutinho, LM||Vidal, J Muñoz||Luz, H Natal da||Navarro, G||Nebot-Guinot, M||Nygren, D||Oliveira, CAB||Palma, R||Pérez, J||Aparicio, JL Pérez||Renner, J||Ripoll, L||Rodríguez, A||Rodríguez, J||Santos, FP||Santos, JMF dos||Seguí, L||Serra, L||Shuman, D||Simón, A||Sofka, C||Sorel, M||Toledo, JF||Tomás, A||Torrent, J||Tsamalaidze, Z||Vázquez, D||Veloso, JFCA||Villar, JA||Webb, R||White, JT||Yahlali, N

publication date

  • April 2013