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Title: Enriched TeO 2 bolometers with active particle discrimination: Towards the CUPID experiment

Abstract

We present the performances of two 92% enriched 130 TeO 2 crystals operated as thermal bolometers in view of a next generation experiment to search for neutrinoless double beta decay of 130 Te. The crystals, 435 g each, show an energy resolution, evaluated at the 2615 keV γ-line of 208 Tl, of 6.5 and 4.3 keV FWHM. The only observable internal radioactive contamination arises from 238 U (15 and 8 μBq/kg, respectively). The internal activity of the most problematic nuclei for neutrinoless double beta decay, 226 Ra and 228 Th, are both evaluated as < 3.1 μBq/kg for one crystal and < 2.3 μBq/kg for the second. Thanks to the readout of the weak Cherenkov light emitted by β/γ particles by means of Neganov–Luke bolometric light detectors we were able to perform an event-by-event identification of β/γ events with a 95% acceptance level, while establishing a rejection factor of 98.21% and 99.99% for α particles.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [5];  [7];  [5];  [5];  [8];  [9];  [10];  [11];  [5];  [5];  [9];  [9];  [9];  [7] more »; ORCiD logo [9];  [12];  [7];  [8];  [13];  [6] « less
  1. Istituto Nazionale di Fisica Nucleare (INFN), Assergi (Italy). Lab. Nazionali del Gran Sasso; Univ. of South Carolina, Columbia, SC (United States). Dept. of Physics and Astronomy
  2. Univ. of South Carolina, Columbia, SC (United States). Dept. of Physics and Astronomy
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Science Division
  4. Istituto Nazionale di Fisica Nucleare (INFN), Roma (Italy)
  5. Univ. of Paris-Sud, Orsay (France)
  6. Chinese Academy of Sciences (CAS), Shanghai (China). Shanghai Inst. of Ceramics
  7. Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy)
  8. Istituto Nazionale di Fisica Nucleare (INFN), Assergi (Italy). Lab. Nazionali del Gran Sasso; Istituto Nazionale di Fisica Nucleare (INFN), L'Aquila(Italy). Lab. Nazionali del Gran Sasso
  9. Istituto Nazionale di Fisica Nucleare (INFN), Assergi (Italy). Lab. Nazionali del Gran Sasso
  10. Alternative Energies and Atomic Energy Commission (CEA), Gif-sur-Yvette Cedex (France)
  11. Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
  12. Univ. of Paris-Sud, Orsay (France); Inst. for Nuclear Research, Kyiv (Ukraine)
  13. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Sciences Division
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); The Regents of the Univ. of California, Berkeley, CA (United States). Nuclear Science and Security Consortium
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1343780
Alternate Identifier(s):
OSTI ID: 1379804; OSTI ID: 1405149
Grant/Contract Number:  
AC02-05CH11231; NA0000979; AC52-07NA27344; NA0003180
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Volume: 767; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; double beta decay; bolometers; isotope enrichment; Cherenkov emission; Neganov-Luke effect

Citation Formats

Artusa, D. R., Avignone, F. T., Beeman, J. W., Dafinei, I., Dumoulin, L., Ge, Z., Giuliani, A., Gotti, C., de Marcillac, P., Marnieros, S., Nagorny, S., Nisi, S., Nones, C., Norman, E. B., Novati, V., Olivieri, E., Orlandi, D., Pagnanini, L., Pattavina, L., Pessina, G., Pirro, S., Poda, D. V., Rusconi, C., Schäffner, K., Scielzo, N. D., and Zhu, Y. Enriched TeO2 bolometers with active particle discrimination: Towards the CUPID experiment. United States: N. p., 2017. Web. doi:10.1016/j.physletb.2017.02.011.
Artusa, D. R., Avignone, F. T., Beeman, J. W., Dafinei, I., Dumoulin, L., Ge, Z., Giuliani, A., Gotti, C., de Marcillac, P., Marnieros, S., Nagorny, S., Nisi, S., Nones, C., Norman, E. B., Novati, V., Olivieri, E., Orlandi, D., Pagnanini, L., Pattavina, L., Pessina, G., Pirro, S., Poda, D. V., Rusconi, C., Schäffner, K., Scielzo, N. D., & Zhu, Y. Enriched TeO2 bolometers with active particle discrimination: Towards the CUPID experiment. United States. doi:10.1016/j.physletb.2017.02.011.
Artusa, D. R., Avignone, F. T., Beeman, J. W., Dafinei, I., Dumoulin, L., Ge, Z., Giuliani, A., Gotti, C., de Marcillac, P., Marnieros, S., Nagorny, S., Nisi, S., Nones, C., Norman, E. B., Novati, V., Olivieri, E., Orlandi, D., Pagnanini, L., Pattavina, L., Pessina, G., Pirro, S., Poda, D. V., Rusconi, C., Schäffner, K., Scielzo, N. D., and Zhu, Y. Tue . "Enriched TeO2 bolometers with active particle discrimination: Towards the CUPID experiment". United States. doi:10.1016/j.physletb.2017.02.011.
@article{osti_1343780,
title = {Enriched TeO2 bolometers with active particle discrimination: Towards the CUPID experiment},
author = {Artusa, D. R. and Avignone, F. T. and Beeman, J. W. and Dafinei, I. and Dumoulin, L. and Ge, Z. and Giuliani, A. and Gotti, C. and de Marcillac, P. and Marnieros, S. and Nagorny, S. and Nisi, S. and Nones, C. and Norman, E. B. and Novati, V. and Olivieri, E. and Orlandi, D. and Pagnanini, L. and Pattavina, L. and Pessina, G. and Pirro, S. and Poda, D. V. and Rusconi, C. and Schäffner, K. and Scielzo, N. D. and Zhu, Y.},
abstractNote = {We present the performances of two 92% enriched 130 TeO 2 crystals operated as thermal bolometers in view of a next generation experiment to search for neutrinoless double beta decay of 130 Te. The crystals, 435 g each, show an energy resolution, evaluated at the 2615 keV γ-line of 208 Tl, of 6.5 and 4.3 keV FWHM. The only observable internal radioactive contamination arises from 238 U (15 and 8 μBq/kg, respectively). The internal activity of the most problematic nuclei for neutrinoless double beta decay, 226 Ra and 228 Th, are both evaluated as < 3.1 μBq/kg for one crystal and < 2.3 μBq/kg for the second. Thanks to the readout of the weak Cherenkov light emitted by β/γ particles by means of Neganov–Luke bolometric light detectors we were able to perform an event-by-event identification of β/γ events with a 95% acceptance level, while establishing a rejection factor of 98.21% and 99.99% for α particles.},
doi = {10.1016/j.physletb.2017.02.011},
journal = {Physics Letters B},
number = C,
volume = 767,
place = {United States},
year = {2017},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2017.02.011

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Works referencing / citing this record:

Impact of the quenching of g A on the sensitivity of 0 ν β β experiments
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Screening of materials with high purity germanium detectors at the Laboratori Nazionali del Gran Sasso
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Radiopure tungstate and molybdate crystal scintillators for double beta decay experiments
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Low background techniques in bolometers for double-beta decay search
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Potentialities of the future technical improvements in the search of rare nuclear decays by bolometers
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