Radon and material radiopurity assessment for the NEXT double beta decay experiment

The ”Neutrino Experiment with a Xenon TPC” (NEXT), intended to investigate the neutrinoless double beta decay using a high-pressure xenon gas TPC filled with Xe enriched in 136Xe at the Canfranc Underground Laboratory in Spain, requires ultra-low background conditions demanding an exhaustive control...

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Detalles Bibliográficos
Autores: Cebrián, Susana, Pérez, Javier Martin, Bandac, I., Labarga, Luis A., Álvarez Puerta, Vicente, Barrado, A. I., Bettini, Alessandro, Borges, Filipa I.G.M., Camargo, Manuel A., Cárcel García, Sara, Cervera Villanueva, Anselmo, Conde, Carlos A.N., Conde, E., Dafni, Theopisti, Díaz Medina, José, Esteve, Raúl, Fernández-García, María, Ferrario, Paola, Freitas, Elisabete D.C., Fernandes, L.M.P., Gehman, Victor M., Goldschmidt, Azriel, Gómez Cadenas, Juan José, González-Díaz, Diego, Gutiérrez, Rafael María, Hauptman, John M., Morata, J. A.Hernando, Herrera, D.C., Irastorza, Igor Garcia, Laing, Andrew, Liubarsky, Igor, López-March, N., Lorca Galindo, David, Losada, Marta, Luzón, Gloria, Marí, A., Martín-Albo Simón, Justo, Martínez Pérez, Alberto, Martínez Lema, Gonzalo, Miller, Tom P., Monrabal Capilla, Francesc, Monserrate, M., Monteiro, Cristina M.B., Mora, Francisco José, Moutinho, L.M., Muñoz Vidal, J., Nebot Guinot, Miquel, Nygren, David R., Oliveira, Carlos A.B., Ortiz de Solórzano, A., Pérez Aparicio, J.L., Querol, M., Renner, Joshua, Ripoll Masferrer, Lluís, Rodríguez Samaniego, Javier, Santos, Filomena P., dos Santos, Joaquim M.F., Serra Díaz-Cano, Luis, Shuman, Derek B., Simón Estévez, Ander, Sofka, C., Sorel, Michel, Toledo, J.F., Torrent Collell, Jordi, Tsamalaidze, Zviadi, Veloso, João F.C.A., Villar, José Ángel, Webb, R.C., White, James T., Yahlali Haddou, Nadia
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2015
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:10256/17044
Acceso en línea:http://hdl.handle.net/10256/17044
Access Level:acceso abierto
Palabra clave:Detectors de radiació
Nuclear counters
Cambres d'ionització
Ionization chambers
Descripción
Sumario:The ”Neutrino Experiment with a Xenon TPC” (NEXT), intended to investigate the neutrinoless double beta decay using a high-pressure xenon gas TPC filled with Xe enriched in 136Xe at the Canfranc Underground Laboratory in Spain, requires ultra-low background conditions demanding an exhaustive control of material radiopurity and environmental radon levels. An extensive material screening process is underway for several years based mainly on gamma-ray spectroscopy using ultra-low backgroundgermanium detectors in Canfranc but also on mass spectrometry techniques like GDMS and ICPMS. Components from shielding, pressure vessel, electroluminescence and high voltage elements and energy and tracking readout planes have been analyzed, helping in the final design of the experiment and in the construction of the background model. The latest measurements carried out will be presented and the implication on NEXT of their results will be discussed. The commissioning of the NEW detector, as a first step towards NEXT, has started in Canfranc; in-situ measurements of airborne radon levels were taken there to optimize the system for radon mitigation and will be shown too

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