SiPMs coated with TPB: coating protocol and characterization for NEXT

Álvarez Puerta, Vicente
Agramunt, J.
Ball, M.
Batallé, M.
Bayarri, J.
Borges, Filipa I.G.M.
Bolink, H.
Brine, H.
Cárcel García, Sara
Carmona, J.M.
Castel, J.
Catalá, J.M.
Cebrián, Susana
Cervera Villanueva, Anselmo
Chan, D.
Conde, Carlos A.N.
Dafni, Theopisti
Dias, T.H.V.T
Díaz Medina, José
Esteve, Raúl
Evtoukhovitch, P.
Ferrando, J.
Fernandes, L.M.P.
Ferrario, Paola
Ferreira, Antonio Luis
Ferrer-Ribas, E.
Freitas, Elisabete D.C.
García, S.A.
Gil Ortiz, Alejandro
Giomataris, I.
Goldschmidt, Azriel
Gómez, E.
Gómez, H.
Gómez Cadenas, Juan José
González, K.
Gutiérrez, Rafael María
Hauptman, John M.
Hernando Morata, J.A.
Herrera, D.C.
Herrero, Vicente
Iguaz, F.J.
Irastorza, Igor Garcia
Kalinnikov, V.
Labarga, Luis A.
Liubarsky, Igor
Lopes, J.A.M.
Lorca Galindo, David
Losada, Marta
Luzón, Gloria
Marí, A.
Martín-Albo Simón, Justo
Méndez, A.M.
Miller, Tom P.
Moiseenko, A.
Monrabal Capilla, Francesc
Monteiro, Cristina M.B.
Monzó, J.M.
Mora, Francisco José
Muñoz Vidal, J.
Natal da Luz, H.
Navarro, G.
Nebot Guinot, Miquel
Nygren, David R.
Oliveira, Carlos A.B.
Palma, R.
Pérez Aparicio, J.L.
Pérez, Javier Martin
Radicioni, E.
Quinto, M.
Renner, Joshua
Rodríguez, Ángel Y.
Santos, Filomena P.
dos Santos, Joaquim M.F.
Seguí, Laura
Serra Díaz-Cano, Luis
Shuman, Derek B.
Sofka, C.
Sorel, Michel
Soriano, A.
Spieler, H.
Toledo, J.F.
Torrent Collell, Jordi
Tomás, A.
Tsamalaidze, Zviadi
Vázquez, D.
Velicheva, E.
Veloso, João F.C.A.
Villar, José Ángel
Webb, R.C.
Weber, T.
White, James T.
Yahlali Haddou, Nadia
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Silicon photomultipliers (SiPM) are the photon detectors chosen for the tracking readout in NEXT, a neutrinoless \bb decay experiment which uses a high pressure gaseous xenon time projection chamber (TPC). The reconstruction of event track and topology in this gaseous detector is a key handle for background rejection. Among the commercially available sensors that can be used for tracking, SiPMs offer important advantages, mainly high gain, ruggedness, cost-effectiveness and radio-purity. Their main drawback, however, is their non sensitivity in the emission spectrum of the xenon scintillation (peak at 175 nm). This is overcome by coating these sensors with the organic wavelength shifter tetraphenyl butadiene (TPB). In this paper we describe the protocol developed for coating the SiPMs with TPB and the measurements performed for characterizing the coatings as well as the performance of the coated sensors in the UV-VUV range ​
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