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

S. Cebrián, J. Pérez, I. Bandac, L. Labarga, V. Álvarez, A. I. Barrado, A. Bettini, F. I.G.M. Borges, M. Camargo, S. Cárcel, A. Cervera, C. A.N. Conde, E. Conde, T. Dafni, J. Díaz, R. Esteve, L. M.P. Fernandes, M. Fernández, P. Ferrario, E. D.C. FreitasL. M.P. Fernandes, V. M. Gehman, A. Goldschmidt, J. J. Gómez-Cadenas, D. González-Díaz, R. M. Gutiérrez, J. Hauptman, J. A.Hernando Morata, D. C. Herrera, I. G. Irastorza, A. Laing, I. Liubarsky, N. López-March, D. Lorca, M. Losada, G. Luzón, A. Marí, J. Martín-Albo, A. Martínez, G. Martínez-Lema, T. Miller, F. Monrabal, M. Monserrate, C. M.B. Monteiro, F. J. Mora, L. M. Moutinho, J. Muñoz Vidal, M. Nebot-Guinot, D. Nygren, C. A.B. Oliveira, A. Ortiz De Solórzano, J. L.Pérez Aparicio, M. Querol, J. Renner, L. Ripoll, J. Rodríguez, F. P. Santos, J. M.F. Dos Santos, L. Serra, D. Shuman, A. Simón, C. Sofka, M. Sorel, J. F. Toledo, J. Torrent, Z. Tsamalaidze, J. F.C.A. Veloso, J. A. Villar, R. C. Webb, J. T. White, N. Yahlali

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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 background germanium 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.

Original languageEnglish (US)
Title of host publicationLow Radioactivity Techniques 2015, LRT 2015
Subtitle of host publicationProceedings of the 5th International Workshop in Low Radioactivity Techniques
EditorsJohn L. Orrell
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413191
DOIs
StatePublished - Aug 17 2015
Event5th International Workshop in Low Radioactivity Techniques, LRT 2015 - Seattle, United States
Duration: Mar 18 2015Mar 20 2015

Publication series

NameAIP Conference Proceedings
Volume1672
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th International Workshop in Low Radioactivity Techniques, LRT 2015
CountryUnited States
CitySeattle
Period3/18/153/20/15

Keywords

  • Double beta decay
  • Gamma detectors (HPGe)
  • Material radiopurity
  • Time-Projection Chamber (TPC)

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Cebrián, S., Pérez, J., Bandac, I., Labarga, L., Álvarez, V., Barrado, A. I., Bettini, A., Borges, F. I. G. M., Camargo, M., Cárcel, S., Cervera, A., Conde, C. A. N., Conde, E., Dafni, T., Díaz, J., Esteve, R., Fernandes, L. M. P., Fernández, M., Ferrario, P., ... Yahlali, N. (2015). Radon and material radiopurity assessment for the NEXT double beta decay experiment. In J. L. Orrell (Ed.), Low Radioactivity Techniques 2015, LRT 2015: Proceedings of the 5th International Workshop in Low Radioactivity Techniques [060002] (AIP Conference Proceedings; Vol. 1672). American Institute of Physics Inc.. https://doi.org/10.1063/1.4927990