Near-intrinsic energy resolution for 30-662 keV gamma rays in a high pressure xenon electroluminescent TPC

We present the design, data and results from the NEXT prototype for Double Beta and Dark Matter (NEXT-DBDM) detector, a high-pressure gaseous natural xenon electroluminescent time projection chamber (TPC) that was built at the Lawrence Berkeley National Laboratory. It is a prototype of the planned N...

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Detalles Bibliográficos
Autores: Álvarez Puerta, Vicente, Cervera Villanueva, Anselmo, Borges, Filipa I.G.M., Cárcel García, Sara, Castel, J., Cebrián, Susana, Conde, Carlos A.N., Dafni, Theopisti, Dias, T.H.V.T, Díaz Medina, José, Egorov, M., Esteve, Raúl, Evtoukhovitch, P., Fernandes, L.M.P., Ferrario, Paola, Ferreira, Antonio Luis, Freitas, Elisabete D.C., Gehman, Victor M., Gil Ortiz, Alejandro, Goldschmidt, Azriel, Gómez, H., Gómez Cadenas, Juan José, González-Díaz, Diego, Gutiérrez, Rafael María, Hauptman, John M., Hernando Morata, J.A., Herrera, D.C., Iguaz, F.J., Irastorza, Igor Garcia, Jinete, M.A., Labarga, Luis A., Liubarsky, Igor, Lopes, J.A.M., Lorca Galindo, David, Losada, Marta, Luzón, Gloria, Marí, A., Martín-Albo Simón, Justo, Martínez Pérez, Alberto, Miller, Tom P., Moiseenko, A., Monrabal Capilla, Francesc, Monteiro, Cristina M.B., Mora, Francisco José, Moutinho, L.M., Muñoz Vidal, J., Natal da Luz, H., Navarro, G., Nebot Guinot, Miquel, Nygren, David R., Oliveira, Carlos A.B., Palma, R., Pérez, Javier Martin, Pérez Aparicio, J.L., Renner, Joshua, Ripoll Masferrer, Lluís, Rodríguez, Ángel Y., Rodríguez Samaniego, Javier, Santos, Filomena P., dos Santos, Joaquim M.F., Seguí, Laura, Serra Díaz-Cano, Luis, Shuman, Derek B., Simón Estévez, Ander, Sofka, C., Sorel, Michel, Toledo, J.F., Tomás, A., Torrent Collell, Jordi, Tsamalaidze, Zviadi, Vázquez, D., Veloso, João F.C.A., Villar, José Ángel, Webb, R.C., White, James T., Yahlali Haddou, Nadia
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2013
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/14135
Acceso en línea:http://hdl.handle.net/10256/14135
Access Level:acceso abierto
Palabra clave:Electroluminiscència
Electroluminescence
Energia nuclear
Nuclear energy
Descripción
Sumario:We present the design, data and results from the NEXT prototype for Double Beta and Dark Matter (NEXT-DBDM) detector, a high-pressure gaseous natural xenon electroluminescent time projection chamber (TPC) that was built at the Lawrence Berkeley National Laboratory. It is a prototype of the planned NEXT-100 136Xe neutrino-less double beta decay (0νββ) experiment with the main objectives of demonstrating near-intrinsic energy resolution at energies up to 662 keV and of optimizing the NEXT-100 detector design and operating parameters. Energy resolutions of ∼1% FWHM for 662 keV gamma rays were obtained at 10 and 15 atm and ∼5% FWHM for 30 keV fluorescence xenon X-rays. These results demonstrate that 0.5% FWHM resolutions for the 2459 keV hypothetical neutrino-less double beta decay peak are realizable. This energy resolution is a factor 7-20 better than that of the current leading 0νββ experiments using liquid xenon and thus represents a significant advancement. We present also first results from a track imaging system consisting of 64 silicon photo-multipliers recently installed in NEXT-DBDM that, along with the excellent energy resolution, demonstrates the key functionalities required for the NEXT-100 0νββ search

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