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Title: Measurement of radon-induced backgrounds in the NEXT double beta decay experiment

Abstract

Here, the measurement of the internal $$^{222}$$Rn activity in the NEXT-White detector during the so-called Run-II period with $$^{136}$$Xe-depleted xenon is discussed in detail, together with its implications for double beta decay searches in NEXT. The activity is measured through the alpha production rate induced in the fiducial volume by $$^{222}$$Rn and its alpha-emitting progeny. The specific activity is measured to be $$(38.1\pm 2.2~\mathrm{(stat.)}\pm 5.9~\mathrm{(syst.)})$$~mBq/m$^3$. Radon-induced electrons have also been characterized from the decay of the $$^{214}$$Bi daughter ions plating out on the cathode of the time projection chamber. From our studies, we conclude that radon-induced backgrounds are sufficiently low to enable a successful NEXT-100 physics program, as the projected rate contribution should not exceed 0.1~counts/yr in the neutrinoless double beta decay sample.

Authors:
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Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); European Research Council (ERC); USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
[The NEXT collaboration]
OSTI Identifier:
1437298
Alternate Identifier(s):
OSTI ID: 1483993; OSTI ID: 1550818
Report Number(s):
[arXiv:1804.00471; FERMILAB-PUB-18-093-CD-ND]
[Journal ID: ISSN 1029-8479; 1665520; TRN: US1900297]
Grant/Contract Number:  
[AC02-06CH11357; AC02-07CH11359; FG02-13ER42020; SC0017721; 339787-NEXT; 674896; 690575; 740055; FIS2014-53371-C04; PROMETEO/2016/120; SEJI/2017/011; TEAM/2016-2/17; AC02-05CH11231]
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
[Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 10]; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Dark Matter and Double Beta Decay (experiments)

Citation Formats

Novella, P., Palmeiro, B., Simón, A., Sorel, M., Adams, C., Ferrario, P., Martínez-Lema, G., Monrabal, F., Zuzel, G., Gómez-Cadenas, J. J., Álvarez, V., Arazi, L., Azevedo, C. D. R., Bailey, K., Ballester, F., Benlloch-Rodríguez, J. M., Borges, F. I. G. M., Botas, A., Cárcel, S., Carrión, J. V., Cebrián, S., Conde, C. A. N., Díaz, J., Diesburg, M., Escada, J., Esteve, R., Felkai, R., Fernandes, A. F. M., Fernandes, L. M. P., Ferreira, A. L., Freitas, E. D. C., Generowicz, J., Goldschmidt, A., González-Díaz, D., Guenette, R., Gutiérrez, R. M., Hafidi, K., Hauptman, J., Henriques, C. A. O., Hernandez, A. I., Hernando Morata, J. A., Herrero, V., Johnston, S., Jones, B. J. P., Kekic, M., Labarga, L., Laing, A., Lebrun, P., López-March, N., Losada, M., Mano, R. D. P., Martíın-Albo, J., Martínez, A., McDonald, A., Monteiro, C. M. B., Mora, F. J., Muñoz Vidal, J., Musti, M., Nebot-Guinot, M., Nygren, D. R., Para, A., Pérez, J., Psihas, F., Querol, M., Renner, J., Repond, J., Riordan, S., Ripoll, L., Rodríguez, J., Rogers, L., Romo-Luque, C., Santos, F. P., dos Santos, J. M. F., Sofka, C., Stiegler, T., Toledo, J. F., Torrent, J., Veloso, J. F. C. A., Webb, R., White, J. T., and Yahlali, N. Measurement of radon-induced backgrounds in the NEXT double beta decay experiment. United States: N. p., 2018. Web. doi:10.1007/JHEP10(2018)112.
Novella, P., Palmeiro, B., Simón, A., Sorel, M., Adams, C., Ferrario, P., Martínez-Lema, G., Monrabal, F., Zuzel, G., Gómez-Cadenas, J. J., Álvarez, V., Arazi, L., Azevedo, C. D. R., Bailey, K., Ballester, F., Benlloch-Rodríguez, J. M., Borges, F. I. G. M., Botas, A., Cárcel, S., Carrión, J. V., Cebrián, S., Conde, C. A. N., Díaz, J., Diesburg, M., Escada, J., Esteve, R., Felkai, R., Fernandes, A. F. M., Fernandes, L. M. P., Ferreira, A. L., Freitas, E. D. C., Generowicz, J., Goldschmidt, A., González-Díaz, D., Guenette, R., Gutiérrez, R. M., Hafidi, K., Hauptman, J., Henriques, C. A. O., Hernandez, A. I., Hernando Morata, J. A., Herrero, V., Johnston, S., Jones, B. J. P., Kekic, M., Labarga, L., Laing, A., Lebrun, P., López-March, N., Losada, M., Mano, R. D. P., Martíın-Albo, J., Martínez, A., McDonald, A., Monteiro, C. M. B., Mora, F. J., Muñoz Vidal, J., Musti, M., Nebot-Guinot, M., Nygren, D. R., Para, A., Pérez, J., Psihas, F., Querol, M., Renner, J., Repond, J., Riordan, S., Ripoll, L., Rodríguez, J., Rogers, L., Romo-Luque, C., Santos, F. P., dos Santos, J. M. F., Sofka, C., Stiegler, T., Toledo, J. F., Torrent, J., Veloso, J. F. C. A., Webb, R., White, J. T., & Yahlali, N. Measurement of radon-induced backgrounds in the NEXT double beta decay experiment. United States. doi:10.1007/JHEP10(2018)112.
Novella, P., Palmeiro, B., Simón, A., Sorel, M., Adams, C., Ferrario, P., Martínez-Lema, G., Monrabal, F., Zuzel, G., Gómez-Cadenas, J. J., Álvarez, V., Arazi, L., Azevedo, C. D. R., Bailey, K., Ballester, F., Benlloch-Rodríguez, J. M., Borges, F. I. G. M., Botas, A., Cárcel, S., Carrión, J. V., Cebrián, S., Conde, C. A. N., Díaz, J., Diesburg, M., Escada, J., Esteve, R., Felkai, R., Fernandes, A. F. M., Fernandes, L. M. P., Ferreira, A. L., Freitas, E. D. C., Generowicz, J., Goldschmidt, A., González-Díaz, D., Guenette, R., Gutiérrez, R. M., Hafidi, K., Hauptman, J., Henriques, C. A. O., Hernandez, A. I., Hernando Morata, J. A., Herrero, V., Johnston, S., Jones, B. J. P., Kekic, M., Labarga, L., Laing, A., Lebrun, P., López-March, N., Losada, M., Mano, R. D. P., Martíın-Albo, J., Martínez, A., McDonald, A., Monteiro, C. M. B., Mora, F. J., Muñoz Vidal, J., Musti, M., Nebot-Guinot, M., Nygren, D. R., Para, A., Pérez, J., Psihas, F., Querol, M., Renner, J., Repond, J., Riordan, S., Ripoll, L., Rodríguez, J., Rogers, L., Romo-Luque, C., Santos, F. P., dos Santos, J. M. F., Sofka, C., Stiegler, T., Toledo, J. F., Torrent, J., Veloso, J. F. C. A., Webb, R., White, J. T., and Yahlali, N. Wed . "Measurement of radon-induced backgrounds in the NEXT double beta decay experiment". United States. doi:10.1007/JHEP10(2018)112. https://www.osti.gov/servlets/purl/1437298.
@article{osti_1437298,
title = {Measurement of radon-induced backgrounds in the NEXT double beta decay experiment},
author = {Novella, P. and Palmeiro, B. and Simón, A. and Sorel, M. and Adams, C. and Ferrario, P. and Martínez-Lema, G. and Monrabal, F. and Zuzel, G. and Gómez-Cadenas, J. J. and Álvarez, V. and Arazi, L. and Azevedo, C. D. R. and Bailey, K. and Ballester, F. and Benlloch-Rodríguez, J. M. and Borges, F. I. G. M. and Botas, A. and Cárcel, S. and Carrión, J. V. and Cebrián, S. and Conde, C. A. N. and Díaz, J. and Diesburg, M. and Escada, J. and Esteve, R. and Felkai, R. and Fernandes, A. F. M. and Fernandes, L. M. P. and Ferreira, A. L. and Freitas, E. D. C. and Generowicz, J. and Goldschmidt, A. and González-Díaz, D. and Guenette, R. and Gutiérrez, R. M. and Hafidi, K. and Hauptman, J. and Henriques, C. A. O. and Hernandez, A. I. and Hernando Morata, J. A. and Herrero, V. and Johnston, S. and Jones, B. J. P. and Kekic, M. and Labarga, L. and Laing, A. and Lebrun, P. and López-March, N. and Losada, M. and Mano, R. D. P. and Martíın-Albo, J. and Martínez, A. and McDonald, A. and Monteiro, C. M. B. and Mora, F. J. and Muñoz Vidal, J. and Musti, M. and Nebot-Guinot, M. and Nygren, D. R. and Para, A. and Pérez, J. and Psihas, F. and Querol, M. and Renner, J. and Repond, J. and Riordan, S. and Ripoll, L. and Rodríguez, J. and Rogers, L. and Romo-Luque, C. and Santos, F. P. and dos Santos, J. M. F. and Sofka, C. and Stiegler, T. and Toledo, J. F. and Torrent, J. and Veloso, J. F. C. A. and Webb, R. and White, J. T. and Yahlali, N.},
abstractNote = {Here, the measurement of the internal $^{222}$Rn activity in the NEXT-White detector during the so-called Run-II period with $^{136}$Xe-depleted xenon is discussed in detail, together with its implications for double beta decay searches in NEXT. The activity is measured through the alpha production rate induced in the fiducial volume by $^{222}$Rn and its alpha-emitting progeny. The specific activity is measured to be $(38.1\pm 2.2~\mathrm{(stat.)}\pm 5.9~\mathrm{(syst.)})$~mBq/m$^3$. Radon-induced electrons have also been characterized from the decay of the $^{214}$Bi daughter ions plating out on the cathode of the time projection chamber. From our studies, we conclude that radon-induced backgrounds are sufficiently low to enable a successful NEXT-100 physics program, as the projected rate contribution should not exceed 0.1~counts/yr in the neutrinoless double beta decay sample.},
doi = {10.1007/JHEP10(2018)112},
journal = {Journal of High Energy Physics (Online)},
number = [10],
volume = [2018],
place = {United States},
year = {2018},
month = {10}
}

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Figures / Tables:

Figure 1 Figure 1: Part of the 222Rn decay scheme that is most relevant for this analysis. Quoted half-lives, Q-values and branching ratios are extracted from the ENSDF database

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    Works referencing / citing this record:

    Barium Chemosensors with Dry-Phase Fluorescence for Neutrinoless Double Beta Decay
    journal, October 2019