Status of the HENSA collaboration at the Canfranc Underground Laboratory: results from two years of measurement of the neutron flux in hall B

N. Mont-Geli; A. Tarifeño-Saldivia; G. Cortés; J. L. Tain; M. Grieger; A. Quero-Ballesteros; M. Pallàs; J. Agramunt; A. Algora; J. Amaré; D. Bemmerer; F. Calviño; D. Cano-Ott; S. Cebrián; D. Cintas; I. Coarasa; A. De Blas; I. Dillman; L. M. Fraile; E. García; R. Garcia; A. M. Lallena; M. Martínez; T. Martínez; E. Nacher; S. E. A. Orrigo; Y. Ortigoza; A. Ortiz de Solórzano; T. Pardo; J. Plaza; J. Puimedón; M. L. Sarsa

doi:10.22323/1.441.0312

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arXiv · 2511.02333

Status of the HENSA collaboration at the Canfranc Underground Laboratory: results from two years of measurement of the neutron flux in hall B

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Abstract

Thiswork deals with the characterization of the neutron flux in hall B of the CanfrancUnderground Laboratory (LSC) employing the High Efficiency Neutron Spectrometry Array (HENSA). The ultimate goal of this measurement is to set a limit on the corresponding effects of the neutron flux in the background of the ANAIS-112 experiment. The preliminary neutron counting rates of two years of measurement are reported. Various data analysis techniques, including pulse shape discrimination, are discussed. The first results on the spectral reconstruction of the neutron flux are also presented.

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N. Mont-Geli, A. Tarifeño-Saldivia, G. Cortés, J. L. Tain, M. Grieger, A. Quero-Ballesteros, M. Pallàs, J. Agramunt, A. Algora, J. Amaré, D. Bemmerer, F. Calviño, D. Cano-Ott, S. Cebrián, D. Cintas, I. Coarasa, A. De Blas, I. Dillman, L. M. Fraile, E. García, R. Garcia, A. M. Lallena, M. Martínez, T. Martínez, E. Nacher, S. E. A. Orrigo, Y. Ortigoza, A. Ortiz de Solórzano, T. Pardo, J. Plaza, J. Puimedón, M. L. Sarsa. 2025-11-04. Status of the HENSA collaboration at the Canfranc Underground Laboratory: results from two years of measurement of the neutron flux in hall B. https://doi.org/10.22323/1.441.0312

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