Long-term evolution of the neutron rate at the Canfranc Underground Laboratory

Abstract We report results on the long-term variation of the neutron counting rate at the Canfranc Underground Laboratory, of importance for several low-background experiments installed there, including rare-event searches. The measurement campaign was performed employing the High Efficiency Neutron...

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Main Authors: S. E. A. Orrigo, J. L. Tain, N. Mont-Geli, A. Tarifeño-Saldivia, L. M. Fraile, M. Grieger, J. Agramunt, A. Algora, D. Bemmerer, F. Calviño, G. Cortés, A. De Blas, I. Dillmann, A. Domínguez Bugarín, R. García, E. Nacher, A. Tolosa-Delgado
Format: Article
Language:English
Published: SpringerOpen 2022-09-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10755-6
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author S. E. A. Orrigo
J. L. Tain
N. Mont-Geli
A. Tarifeño-Saldivia
L. M. Fraile
M. Grieger
J. Agramunt
A. Algora
D. Bemmerer
F. Calviño
G. Cortés
A. De Blas
I. Dillmann
A. Domínguez Bugarín
R. García
E. Nacher
A. Tolosa-Delgado
author_facet S. E. A. Orrigo
J. L. Tain
N. Mont-Geli
A. Tarifeño-Saldivia
L. M. Fraile
M. Grieger
J. Agramunt
A. Algora
D. Bemmerer
F. Calviño
G. Cortés
A. De Blas
I. Dillmann
A. Domínguez Bugarín
R. García
E. Nacher
A. Tolosa-Delgado
author_sort S. E. A. Orrigo
collection DOAJ
description Abstract We report results on the long-term variation of the neutron counting rate at the Canfranc Underground Laboratory, of importance for several low-background experiments installed there, including rare-event searches. The measurement campaign was performed employing the High Efficiency Neutron Spectrometry Array (HENSA) mounted in Hall A and lasted 412 live days. The present study is the first long-term measurement of the neutron rate with sensitivity over a wide range of neutron energies (from thermal up to 0.1 GeV and beyond) performed in any underground laboratory so far. Data on the environmental variables inside the experimental hall (radon concentration, air temperature, air pressure and humidity) were also acquired during all the measurement campaign. We have investigated for the first time the evolution of the neutron rate for different energies of the neutrons and its correlation with the ambient variables.
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spelling doaj.art-4bb197deaa034bfb8de84f4c8a8115d72022-12-22T03:16:40ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-09-0182911110.1140/epjc/s10052-022-10755-6Long-term evolution of the neutron rate at the Canfranc Underground LaboratoryS. E. A. Orrigo0J. L. Tain1N. Mont-Geli2A. Tarifeño-Saldivia3L. M. Fraile4M. Grieger5J. Agramunt6A. Algora7D. Bemmerer8F. Calviño9G. Cortés10A. De Blas11I. Dillmann12A. Domínguez Bugarín13R. García14E. Nacher15A. Tolosa-Delgado16Instituto de Física Corpuscular, CSIC-Universidad de ValenciaInstituto de Física Corpuscular, CSIC-Universidad de ValenciaInstitute of Energy Technologies (INTE), Technical University of Catalonia (UPC)Institute of Energy Technologies (INTE), Technical University of Catalonia (UPC)Grupo de Física Nuclear & IPARCOS, Universidad Complutense de MadridHelmholtz-Zentrum Dresden-Rossendorf (HZDR)Instituto de Física Corpuscular, CSIC-Universidad de ValenciaInstituto de Física Corpuscular, CSIC-Universidad de ValenciaHelmholtz-Zentrum Dresden-Rossendorf (HZDR)Institute of Energy Technologies (INTE), Technical University of Catalonia (UPC)Institute of Energy Technologies (INTE), Technical University of Catalonia (UPC)Institute of Energy Technologies (INTE), Technical University of Catalonia (UPC)TRIUMFGrupo de Física Nuclear & IPARCOS, Universidad Complutense de MadridInstitute of Energy Technologies (INTE), Technical University of Catalonia (UPC)Instituto de Física Corpuscular, CSIC-Universidad de ValenciaInstituto de Física Corpuscular, CSIC-Universidad de ValenciaAbstract We report results on the long-term variation of the neutron counting rate at the Canfranc Underground Laboratory, of importance for several low-background experiments installed there, including rare-event searches. The measurement campaign was performed employing the High Efficiency Neutron Spectrometry Array (HENSA) mounted in Hall A and lasted 412 live days. The present study is the first long-term measurement of the neutron rate with sensitivity over a wide range of neutron energies (from thermal up to 0.1 GeV and beyond) performed in any underground laboratory so far. Data on the environmental variables inside the experimental hall (radon concentration, air temperature, air pressure and humidity) were also acquired during all the measurement campaign. We have investigated for the first time the evolution of the neutron rate for different energies of the neutrons and its correlation with the ambient variables.https://doi.org/10.1140/epjc/s10052-022-10755-6
spellingShingle S. E. A. Orrigo
J. L. Tain
N. Mont-Geli
A. Tarifeño-Saldivia
L. M. Fraile
M. Grieger
J. Agramunt
A. Algora
D. Bemmerer
F. Calviño
G. Cortés
A. De Blas
I. Dillmann
A. Domínguez Bugarín
R. García
E. Nacher
A. Tolosa-Delgado
Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
European Physical Journal C: Particles and Fields
title Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
title_full Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
title_fullStr Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
title_full_unstemmed Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
title_short Long-term evolution of the neutron rate at the Canfranc Underground Laboratory
title_sort long term evolution of the neutron rate at the canfranc underground laboratory
url https://doi.org/10.1140/epjc/s10052-022-10755-6
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