Description and commissioning of NEXT-MM prototype: first results from operation in a Xenon-Trimethylamine gas mixture Academic Article uri icon


  • A technical description of NEXT-MM and its commissioning and first performance is reported. Having an active volume of 35 cm drift 28 cm diameter, it constitutes the largest Micromegas-read TPC operated in Xenon ever constructed, made by a sectorial arrangement of the 4 largest single wafers manufactured with the Microbulk technique to date. It is equipped with a suitably pixelized readout and with a sufficiently large sensitive volume ( 23 l) so as to contain long ( 20 cm) electron tracks. First results obtained at 1 bar for Xenon and Trymethylamine (Xe-(2%)TMA) mixture are presented. The TPC can accurately reconstruct extended background tracks. An encouraging full-width half-maximum of 11.6 % was obtained for 29 keV gammas without resorting to any data post-processing. 2014 IOP Publishing Ltd and Sissa Medialab srl.

published proceedings


altmetric score

  • 0.75

author list (cited authors)

  • Alvarez, V., Aznar, F., Borges, F., Calvet, D., Carcel, S., Castel, J., ... Yahlali, N.

citation count

  • 16

complete list of authors

  • Alvarez, V||Aznar, F||Borges, FIGM||Calvet, D||Carcel, S||Castel, J||Cebrian, S||Cervera, A||Conde, CAN||Dafni, T||Dias, THVT||Diaz, J||Druillole, F||Egorov, M||Esteve, R||Evtoukhovitch, P||Fernandes, LMP||Ferrario, P||Ferreira, AL||Ferrer-Ribas, E||Freitas, EDC||Gehman, VM||Gil, A||Giomataris, I||Goldschmidt, A||Gomez, H||Gomez-Cadenas, JJ||Gonzalez-Diaz, D||Gutierrez, RM||Hauptman, J||Hernando Morata, JA||Herrera, DC||Iguaz, FJ||Irastorza, IG||Jinete, MA||Labarga, L||Laing, A||Le Coguie, A||Liubarsky, I||Lopes, JAM||Lorca, D||Losada, M||Luzon, G||Mari, A||Martin-Albo, J||Martinez, A||Martinez-Lema, G||Miller, T||Moiseenko, A||Mols, JP||Monrabal, F||Monteiro, CMB||Mora, FJ||Moutinho, LM||Munoz Vidal, J||Natal da Luz, H||Navarro, G||Nebot-Guinot, M||Nygren, D||Oliveira, CAB||Palma, R||Perez, J||Perez Aparicio, JL||Renner, J||Ripoll, L||Rodriguez, A||Rodriguez, J||Santos, FP||dos Santos, JMF||Segui, L||Serra, L||Shuman, D||Simon, A||Sofka, C||Sorel, M||Toledo, JF||Tomas, A||Torrent, J||Tsamalaidze, Z||Veloso, JFCA||Villar, JA||Webb, RC||White, JT||Yahlali, N

publication date

  • March 2014