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dc.contributor.author | Cebrian, S. | es_ES |
dc.contributor.author | Perez, J. | es_ES |
dc.contributor.author | Bandac, I. | es_ES |
dc.contributor.author | Labarga, L. | es_ES |
dc.contributor.author | Álvarez-Puerta, Vicente | es_ES |
dc.contributor.author | Azevedo, C. D. R. | es_ES |
dc.contributor.author | Benlloch-Rodriguez, J. M. | es_ES |
dc.contributor.author | Borges, F. I. G. M. | es_ES |
dc.contributor.author | Botas, A. | es_ES |
dc.contributor.author | Carcel, S. | es_ES |
dc.contributor.author | Carrión, J.V. | es_ES |
dc.contributor.author | Conde, C. A. N. | es_ES |
dc.contributor.author | Diaz, J. | es_ES |
dc.contributor.author | Diesburg, M. | es_ES |
dc.contributor.author | Escada, J. | es_ES |
dc.contributor.author | Esteve Bosch, Raul | es_ES |
dc.contributor.author | Herrero Bosch, Vicente | es_ES |
dc.contributor.author | Mora Mas, Francisco José | es_ES |
dc.contributor.author | Querol-Segura, Marc | es_ES |
dc.contributor.author | Rodriguez-Samaniego, Javier | es_ES |
dc.contributor.author | Toledo Alarcón, José Francisco | es_ES |
dc.date.accessioned | 2020-11-26T04:32:39Z | |
dc.date.available | 2020-11-26T04:32:39Z | |
dc.date.issued | 2017-08-21 | es_ES |
dc.identifier.issn | 1748-0221 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/155868 | |
dc.description.abstract | [EN] The "Neutrino Experiment with a Xenon Time-Projection Chamber" (NEXT) experiment intends to investigate the neutrinoless double beta decay of 136Xe, and therefore requires a severe suppression of potential backgrounds. An extensive material screening and selection process was undertaken to quantify the radioactivity of the materials used in the experiment. Separate energy and tracking readout planes using different sensors allow us to combine the measurement of the topological signature of the event for background discrimination with the energy resolution optimization. The design of radiopure readout planes, in direct contact with the gas detector medium, was especially challenging since the required components typically have activities too large for experiments demanding ultra-low background conditions. After studying the tracking plane, here the radiopurity control of the energy plane is presented, mainly based on gamma-ray spectroscopy using ultra-low background germanium detectors at the Laboratorio Subterráneo de Canfranc (Spain). All the available units of the selected model of photomultiplier have been screened together with most of the components for the bases, enclosures and windows. According to these results for the activity of the relevant radioisotopes, the selected components of the energy plane would give a contribution to the overall background level in the region of interest of at most 2.4 × 10¿4 counts per keV, kg and year, satisfying the sensitivity requirements of the NEXT experiment. | es_ES |
dc.description.sponsorship | Special thanks are due to LSC directorate and staff for their strong support for performing the measurements at the LSC Radiopurity Service. We are really grateful to Grzegorz Zuzel for the radon emanation measurements. The NEXT Collaboration acknowledges support from the following agencies and institutions: the European Research Council (ERC) under the Advanced Grant 339787-NEXT; the Ministerio de Economia y Competitividad of Spain under grants FIS2014-53371-C04 and the Severo Ochoa Program SEV-2014-0398; the GVA of Spain under grant PROMETEO/2016/120; the Portuguese FCT and FEDER through the program COMPETE, project PTDC/FIS/103860/2008; the U.S. Department of Energy under contracts number DE-AC02-07CH11359 (Fermi National Accelerator Laboratory) and DE-FG02-13ER42020 (Texas A & and the University of Texas at Arlington. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | IOP Publishing | es_ES |
dc.relation.ispartof | Journal of Instrumentation | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Double-beta decay detectors | es_ES |
dc.subject | Gamma detectors (scintillators, CZT, HPG, HgI etc) | es_ES |
dc.subject | Search for radioactive and fissile materials | es_ES |
dc.subject | Time projection chambers | es_ES |
dc.subject.classification | TECNOLOGIA ELECTRONICA | es_ES |
dc.title | Radiopurity assessment of the energy readout for the NEXT double beta decay experiment | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1088/1748-0221/12/08/T08003 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/103860/PT/Participation in the international collaboration "NEXT-Neutrino Experiment with a Xenon TPC" aiming the direct detection of the neutrinoless double beta decay/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/DOE//DE-FG02-13ER42020/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/DOE//DE-AC02-07CH11359/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/EC/FP7/339787/EU/Towards the NEXT generation of bb0nu experiments/ | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//SEV-2014-0398/ES/INSTITUTO DE FISICA CORPUSCULAR (IFIC)/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/GVA//PROMETEO%2F2016%2F120/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//FIS2014-53371-C4-4-R/ES/CONSTRUCCION, VALIDACION Y OPERACION DE LA ELECTRONICA DEL EXPERIMENTO NEXT/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto de Instrumentación para Imagen Molecular - Institut d'Instrumentació per a Imatge Molecular | es_ES |
dc.description.bibliographicCitation | Cebrian, S.; Perez, J.; Bandac, I.; Labarga, L.; Álvarez-Puerta, V.; Azevedo, CDR.; Benlloch-Rodriguez, JM.... (2017). Radiopurity assessment of the energy readout for the NEXT double beta decay experiment. Journal of Instrumentation. 12. https://doi.org/10.1088/1748-0221/12/08/T08003 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1088/1748-0221/12/08/T08003 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 12 | es_ES |
dc.identifier.pmid | 30530539 | es_ES |
dc.identifier.pmcid | PMC6335299 | es_ES |
dc.relation.pasarela | S\342031 | es_ES |
dc.contributor.funder | Generalitat Valenciana | es_ES |
dc.contributor.funder | U.S. Department of Energy | es_ES |
dc.contributor.funder | European Research Council | es_ES |
dc.contributor.funder | University of Texas at Arlington | es_ES |
dc.contributor.funder | European Regional Development Fund | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |
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