Characterization of multilayer Thick-GEM geometries as 10B converters aiming thermal neutron detection

LUZ, H.N. daSOUZA, F.A.MORALLES, M.CARLIN, N.OLIVEIRA, R.A.N.BREGANT, M.SUAIDE, A.A.P.CHUBACI, J.F.D.MATSUOKA, M.SILVA, T.F.MORO, M.V.RODRIGUES, C.L.MUNHOZ, M.G.2019-01-312019-01-312018LUZ, H.N. da; SOUZA, F.A.; MORALLES, M.; CARLIN, N.; OLIVEIRA, R.A.N.; BREGANT, M.; SUAIDE, A.A.P.; CHUBACI, J.F.D.; MATSUOKA, M.; SILVA, T.F.; MORO, M.V.; RODRIGUES, C.L.; MUNHOZ, M.G. Characterization of multilayer Thick-GEM geometries as 10B converters aiming thermal neutron detection. <b>EPJ Web of Conferences</b>, v. 174, p. 1-4, 2018. DOI: <a href="https://dx.doi.org/10.1051/epjconf/201817401012">10.1051/epjconf/201817401012</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29429.2100-014Xhttp://repositorio.ipen.br/handle/123456789/29429Boron-based thermal neutron detectors have recently regained some attention from the instrumentation community as a strong alternative to helium-3 detectors. From the existing concepts exploiting boron layers in position sensitive detectors, the Cascade [1] is the one that takes full advantage of the 2D capabilities of gaseous detectors, with the position resolution not limited by the architecture of the detector. In this work, a proposal for the Cascade detector, based on Thick-GEMs is presented, together with some preliminary studies of the suitable pitch that optimizes the neutron conversion efficiency, while keeping the collection efficiency intact. The characterization of Thick-GEM prototypes produced in Brazil with hole pitch from 0.75 to 3 mm shows that these devices already present a stable performance at low gains, also resulting in fair energy resolution, when cascaded with a standard KaptonTM 50 µm GEM. Results of the first attempts of boron film depositions with Ion Beam Assisted Deposition and characterization by Ion Beam Analysis are also presented.1-4openAccessthermal neutronsboronelectron multiplier detectorsthickness gagescascade theorygeometryneutron detectionCharacterization of multilayer Thick-GEM geometries as 10B converters aiming thermal neutron detectionArtigo de periódico17410.1051/epjconf/201817401012aguardandohttps://orcid.org/0000-0002-2664-5531Sem PercentilSem Percentil CiteScore