Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment
The LUCIFER project aims at deploying the first array of enriched scintillating bolometers for the investigation of neutrinoless double-beta decay of [Formula: see text] Se. The matrix which embeds the source is an array of ZnSe crystals, where enriched [Formula: see text] Se is used as decay isotop...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Springer Berlin Heidelberg
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681472/ https://www.ncbi.nlm.nih.gov/pubmed/26705394 http://dx.doi.org/10.1140/epjc/s10052-015-3822-x |
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author | Beeman, J. W. Bellini, F. Benetti, P. Cardani, L. Casali, N. Chiesa, D. Clemenza, M. Dafinei, I. Domizio, S. Di Ferroni, F. Gironi, L. Giuliani, A. Gotti, C. Laubenstein, M. Maino, M. Nagorny, S. Nisi, S. Nones, C. Orio, F. Pagnanini, L. Pattavina, L. Pessina, G. Piperno, G. Pirro, S. Previtali, E. Rusconi, C. Schäffner, K. Tomei, C. Vignati, M. |
author_facet | Beeman, J. W. Bellini, F. Benetti, P. Cardani, L. Casali, N. Chiesa, D. Clemenza, M. Dafinei, I. Domizio, S. Di Ferroni, F. Gironi, L. Giuliani, A. Gotti, C. Laubenstein, M. Maino, M. Nagorny, S. Nisi, S. Nones, C. Orio, F. Pagnanini, L. Pattavina, L. Pessina, G. Piperno, G. Pirro, S. Previtali, E. Rusconi, C. Schäffner, K. Tomei, C. Vignati, M. |
author_sort | Beeman, J. W. |
collection | PubMed |
description | The LUCIFER project aims at deploying the first array of enriched scintillating bolometers for the investigation of neutrinoless double-beta decay of [Formula: see text] Se. The matrix which embeds the source is an array of ZnSe crystals, where enriched [Formula: see text] Se is used as decay isotope. The radiopurity of the initial components employed for manufacturing crystals, that can be operated as bolometers, is crucial for achieving a null background level in the region of interest for double-beta decay investigations. In this work, we evaluated the radioactive content in 2.5 kg of 96.3 % enriched [Formula: see text] Se metal, measured with a high-purity germanium detector at the Gran Sasso deep underground laboratory. The limits on internal contaminations of primordial decay chain elements of [Formula: see text] Th, [Formula: see text] U and [Formula: see text] U are respectively: [Formula: see text] 61, [Formula: see text] 110 and [Formula: see text] 74 [Formula: see text] Bq/kg at 90 % C.L. The extremely low-background conditions in which the measurement was carried out and the high radiopurity of the [Formula: see text] Se allowed us to establish the most stringent lower limits on the half-lives of the double-beta decay of [Formula: see text] Se to 0[Formula: see text] , 2[Formula: see text] and 2[Formula: see text] excited states of [Formula: see text] Kr of 3.4[Formula: see text] 10[Formula: see text] , 1.3[Formula: see text] 10[Formula: see text] and 1.0[Formula: see text] 10[Formula: see text] y, respectively, with a 90 % C.L. |
format | Online Article Text |
id | pubmed-4681472 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-46814722015-12-22 Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment Beeman, J. W. Bellini, F. Benetti, P. Cardani, L. Casali, N. Chiesa, D. Clemenza, M. Dafinei, I. Domizio, S. Di Ferroni, F. Gironi, L. Giuliani, A. Gotti, C. Laubenstein, M. Maino, M. Nagorny, S. Nisi, S. Nones, C. Orio, F. Pagnanini, L. Pattavina, L. Pessina, G. Piperno, G. Pirro, S. Previtali, E. Rusconi, C. Schäffner, K. Tomei, C. Vignati, M. Eur Phys J C Part Fields Regular Article - Experimental Physics The LUCIFER project aims at deploying the first array of enriched scintillating bolometers for the investigation of neutrinoless double-beta decay of [Formula: see text] Se. The matrix which embeds the source is an array of ZnSe crystals, where enriched [Formula: see text] Se is used as decay isotope. The radiopurity of the initial components employed for manufacturing crystals, that can be operated as bolometers, is crucial for achieving a null background level in the region of interest for double-beta decay investigations. In this work, we evaluated the radioactive content in 2.5 kg of 96.3 % enriched [Formula: see text] Se metal, measured with a high-purity germanium detector at the Gran Sasso deep underground laboratory. The limits on internal contaminations of primordial decay chain elements of [Formula: see text] Th, [Formula: see text] U and [Formula: see text] U are respectively: [Formula: see text] 61, [Formula: see text] 110 and [Formula: see text] 74 [Formula: see text] Bq/kg at 90 % C.L. The extremely low-background conditions in which the measurement was carried out and the high radiopurity of the [Formula: see text] Se allowed us to establish the most stringent lower limits on the half-lives of the double-beta decay of [Formula: see text] Se to 0[Formula: see text] , 2[Formula: see text] and 2[Formula: see text] excited states of [Formula: see text] Kr of 3.4[Formula: see text] 10[Formula: see text] , 1.3[Formula: see text] 10[Formula: see text] and 1.0[Formula: see text] 10[Formula: see text] y, respectively, with a 90 % C.L. Springer Berlin Heidelberg 2015-12-13 2015 /pmc/articles/PMC4681472/ /pubmed/26705394 http://dx.doi.org/10.1140/epjc/s10052-015-3822-x Text en © The Author(s) 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. |
spellingShingle | Regular Article - Experimental Physics Beeman, J. W. Bellini, F. Benetti, P. Cardani, L. Casali, N. Chiesa, D. Clemenza, M. Dafinei, I. Domizio, S. Di Ferroni, F. Gironi, L. Giuliani, A. Gotti, C. Laubenstein, M. Maino, M. Nagorny, S. Nisi, S. Nones, C. Orio, F. Pagnanini, L. Pattavina, L. Pessina, G. Piperno, G. Pirro, S. Previtali, E. Rusconi, C. Schäffner, K. Tomei, C. Vignati, M. Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment |
title | Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment |
title_full | Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment |
title_fullStr | Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment |
title_full_unstemmed | Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment |
title_short | Double-beta decay investigation with highly pure enriched [Formula: see text] Se for the LUCIFER experiment |
title_sort | double-beta decay investigation with highly pure enriched [formula: see text] se for the lucifer experiment |
topic | Regular Article - Experimental Physics |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681472/ https://www.ncbi.nlm.nih.gov/pubmed/26705394 http://dx.doi.org/10.1140/epjc/s10052-015-3822-x |
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