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

[EN] 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...

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Autores: Alvarez, V., Aznar, F., Borges, F. I. G. M., Calvet, D., Carcel, S., Castel, J., Cebrian, S., Cervera, A., Conde, C. A. N., Dafni, T., Dias, T. H. V. T., Diaz, J., Druillole, F., Egorov, M., Evtoukhovitch, P., Fernandes, L. M. P., Ferrario, P., Ferreira, A. L., Ferrer-Ribas, E., Freitas, E. D. C., Gehman, V. M., Gil, A., Giomataris, I., Goldschmidt, A., Gomez, H., Gomez-Cadenas, J. J., Gonzalez-Diaz, D., Gutierrez, R. M., Hauptman, J., Hernando Morata, J. A., Herrera, D. C., Iguaz, F. J., Irastorza, I. G., Jinete, M. A., Labarga, L., Laing, A., Le Coguie, A., Liubarsky, I., Lopes, J. A. M., Lorca, D., Losada, M., Luzon, G., Marí Romero, Antonio Francisco, Martin-Albo, J., Martinez, A., Martinez-Lema, G., Miller, T., Moiseenko, A., Mols, J. P., Monrabal, F., Monteiro, C. M. B., Moutinho, L. M., Munoz Vidal, J., Natal da Luz, H., Navarro, G., Nebot Guinot, M., Nigren, D., Oliveira, C.A.B., Palma, R., Perez, J., Pérez Aparicio, José Luis, Renner, J., Ripoll, L., Rodriguez, A., Rodriguez, J., Santos, F. P., dos Santos, J. M. F., Segui, L., Serra, L., Shuman, D., Simon, A., Sofka, C., Sorel, M., Tomas, A., Torrent, J., Tsamalaidze, Z., Veloso, J. F. C. A., Villar, J.A., Webb, R. C., White, J. T., Yahlali, N., Esteve Bosch, Raul|||0000-0002-1289-6938, Mora Mas, Francisco José|||0000-0003-2281-9546, Toledo Alarcón, José Francisco|||0000-0002-9782-4510
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/60693
Acceso en línea:https://riunet.upv.es/handle/10251/60693
Access Level:acceso abierto
Palabra clave:Time projection chambers
Particle tracking detectors (Gaseous detectors)
Double-beta decay detectors
MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS
TECNOLOGIA ELECTRONICA
Descripción
Sumario:[EN] 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.

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