DUGiDocsRadiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements
dc.contributor.author
dc.date.accessioned
2019-10-16T08:04:01Z
dc.date.available
2019-10-16T08:04:01Z
dc.date.issued
2013-01-22
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1748-0221
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dc.description.abstract
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
dc.description.sponsorship
We deeply acknowledge LSC directorate and staff for their strong support for performing the measurements
at the LSC Radiopurity Service. The NEXT Collaboration acknowledges funding support
from the following agencies and institutions: the Spanish Ministerio de Economía y Competitividad
under grants CONSOLIDER-Ingenio 2010 CSD2008-0037 (CUP), Consolider-Ingenio
2010 CSD2007- 00042 (CPAN), and under contracts ref. FPA2008-03456, FPA2009-13697-C04-
04; FCT(Lisbon) and FEDER under grant PTDC/FIS/103860/2008; the European Commission
under the European Research Council T-REX Starting Grant ref. ERC-2009-StG-240054 of the
IDEAS program of the 7th EU Framework Program; Director, Office of Science, Office of Basic
Energy Sciences, of the US Department of Energy under contract no. DE-AC02-05CH11231.
Part of these grants are funded by the European Regional Development Fund (ERDF/FEDER). J.
Renner (LBNL) acknowledges the support of a US DOE NNSA Stewardship Science Graduate
Fellowship under contract no. DE-FC52-08NA28752. F. I. acknowledges the support from the
Eurotalents program
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application/pdf
dc.language.iso
eng
dc.publisher
Institute of Physics (IOP)
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Versió preprint del document publicat a: https://doi.org/10.1088/1748-0221/8/01/T01002
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© Journal of Instrumentation, 2013, vol. 8, p. T01002
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Articles publicats (D-EMCI)
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Tots els drets reservats
dc.title
Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/submittedVersion
dc.identifier.doi
dc.identifier.idgrec
021447