000145408 001__ 145408
000145408 005__ 20241024135331.0
000145408 0247_ $$2doi$$a10.1088/1748-0221/19/09/P09021
000145408 0248_ $$2sideral$$a140273
000145408 037__ $$aART-2024-140273
000145408 041__ $$aeng
000145408 100__ $$0(orcid)0000-0002-6948-5101$$aCebrián, Susana$$uUniversidad de Zaragoza
000145408 245__ $$aA new hybrid gadolinium nanoparticles-loaded polymeric material for neutron detection in rare event searches
000145408 260__ $$c2024
000145408 5060_ $$aAccess copy available to the general public$$fUnrestricted
000145408 5203_ $$aExperiments aimed at direct searches for WIMP dark matter require highly effective reduction of backgrounds and control of any residual radioactive contamination. In particular, neutrons interacting with atomic nuclei represent an important class of backgrounds due to the expected similarity of a WIMP-nucleon interaction, so that such experiments often feature a dedicated neutron detector surrounding the active target volume. In the context of the development of DarkSide-20k detector at INFN Gran Sasso National Laboratory (LNGS), several R&D projects were conceived and developed for the creation of a new hybrid material rich in both hydrogen and gadolinium nuclei to be employed as an essential element of the neutron detector. Thanks to its very high cross-section for neutron capture, gadolinium is one of the most widely used elements in neutron detectors, while the hydrogen-rich material is instrumental in efficiently moderating the neutrons. In this paper results from one of the R&Ds are presented. In this effort the new hybrid material was obtained as a poly(methyl methacrylate) (PMMA) matrix, loaded with gadolinium oxide in the form of nanoparticles. We describe its realization, including all phases of design, purification, construction, characterization, and determination of mechanical properties of the new material.
000145408 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2022-138357NB-C22
000145408 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000145408 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000145408 700__ $$aAcerbi, F.
000145408 700__ $$aAdhikari, P.
000145408 700__ $$aAgnes, P.
000145408 700__ $$aAhmad, I.
000145408 700__ $$aAlbergo, S.
000145408 700__ $$aAlbuquerque, I.F.
000145408 700__ $$aAlexander, T.
000145408 700__ $$aAlton, A.K.
000145408 700__ $$aAmaudruz, P.
000145408 700__ $$aAngiolilli, M.
000145408 700__ $$aAprile, E.
000145408 700__ $$a
000145408 7102_ $$12004$$2390$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Atóm.Molec.y Nucl.
000145408 773__ $$g19, 09 (2024), P09021 [30 pp.]$$pJournal of Instrumentation$$tJournal of Instrumentation$$x1748-0221
000145408 8564_ $$s8953143$$uhttps://zaguan.unizar.es/record/145408/files/texto_completo.pdf$$yVersión publicada
000145408 8564_ $$s1642283$$uhttps://zaguan.unizar.es/record/145408/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000145408 909CO $$ooai:zaguan.unizar.es:145408$$particulos$$pdriver
000145408 951__ $$a2024-10-24-12:12:23
000145408 980__ $$aARTICLE