Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements

Álvarez, V. ; Bandac, I. ; Bettini, A. ; Borges, F.I.G.M. ; Cárcel, S. ; Castel, J. (Universidad de Zaragoza) ; Cebrián, S. (Universidad de Zaragoza) ; Cervera, A. ; Conde, C.A.N. ; Dafni, T. (Universidad de Zaragoza) ; Dias, T.H.V.T. ; Díaz, J. ; Egorov, M. ; Esteve, R. ; Evtoukhovitch, P. ; Fernandes, L.M.P. ; Ferrario, P. ; Ferreira, A.L. ; Freitas, E.D.C. ; Gehman, V.M. ; Gil, A. ; Goldschmidt, A. ; Gómez, H. ; Gómez-Cadenas, J.J. ; González-Díaz, D. (Universidad de Zaragoza) ; Gutiérrez, R.M. ; Hauptman, J. ; Hernando Morata, J.A. ; Herrera, D.C. (Universidad de Zaragoza) ; Iguaz, F.J. (Universidad de Zaragoza) ; Irastorza, I.G. (Universidad de Zaragoza) ; Jinete, M.A. ; Labarga, L. ; Laing, A. ; Liubarsky, I. ; Lopes, J.A.M. ; Lorca, D. ; Losada, M. ; Luzón, G. (Universidad de Zaragoza) ; A.Marí, A. ; Martín-Albo, J. ; Martínez, A. ; Miller, T. ; Moiseenko, A. ; Monrabal, A. ; Monteiro, C.M.B. ; Mora, F.J. ; Moutinho, L.M. ; Muñoz Vidal, J. ; Natal da Luz, H. ; Navarro, G. ; Nebot-Guinot, M. ; Nygren, D. ; Oliveira, C.A.B. ; Ortiz de Solórzano, A. (Universidad de Zaragoza) ; Palma, R. ; Pérez, J.J. ; Pérez Aparicio, J.L. ; Renner, J. ; Ripoll, L. ; Rodríguez, A. ; Rodríguez, J. ; Santos, F.P. ; dos Santos, J.M.F. ; Segui, L. ; Serra, L. ; Shuman, D. ; Simón, A. ; Sofka, C. ; Sorel, M. ; Toledo, J.F. ; Tomás, A. ; Torrent, J. ; Tsamalaidze, Z. ; Vázquez, D. ; Veloso, J.F.C.A. ; Villar, J.A. (Universidad de Zaragoza) ; Webb, R.C. ; White, J.T. ; Yahlali, N.

Resumen: The “Neutrino Experiment with a Xenon Time-Projection Chamber” (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires a severe suppression of potential backgrounds. An extensive screening and material selection process is underway for NEXT since the control of the radiopurity levels of the materials to be used in the experimental set-up is a must for rare event searches. First measurements based on Glow Discharge Mass Spectrometry and gamma-ray spectroscopy using ultra-low background germanium detectors at the Laboratorio Subterr´aneo de Canfranc (Spain) are described here. Activity results for natural radioactive chains and other common radionuclides are summarized, being the values obtained for some materials like copper and stainless steel very competitive. The implications of these results
for the NEXT experiment are also discussed.

Idioma: Inglés

DOI: 10.1088/1748-0221/8/01/T01002

Año: 2013

Publicado en: Journal of Instrumentation 8, 1 (2013), [19 pp]
ISSN: 1748-0221

Factor impacto JCR: 1.526 (2013)

Categ. JCR: INSTRUMENTS & INSTRUMENTATION rank: 21 / 57 = 0.368 (2013) - Q2 - T2

Financiación: info:eu-repo/grantAgreement/ES/FEDER/COMPETE/PTDC-FIS-103860-2008
Financiación: info:eu-repo/grantAgreement/EC/FP7/240054/EU/Novel Developments in Time Projection Chambers (TPCs) for Rare Event Searches in Underground Astroparticle EXperiments/TREX
Financiación: info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio/CSD2007-00042
Financiación: info:eu-repo/grantAgreement/ES/MINECO/Consolider-Ingenio-2010/CSD2008-00037
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/FPA2008-03456
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FPA2009-13697-C04-04

Tipo y forma: Article (PostPrint)

Área (Departamento): Proy. investigación HCA (Dpto. Física Teórica)
Área (Departamento): Área Física Atóm.Molec.y Nucl. (Dpto. Física Teórica)