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NEXT-100 Technical Design Report (TDR). Executive summary

In this Technical Design Report (TDR) we describe the NEXT-100 detector that will search for neutrinoless double beta decay ( beta beta 0v) in super(136)Xe at the Laboratorio Subterraneo de Canfranc (LSC), in Spain. The document formalizes the design presented in our Conceptual Design Report (CDR):...

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Bibliographic Details
Published in:Journal of instrumentation 2012-06, Vol.7 (6), p.T06001-T06001
Main Authors: Álvarez, V, Borges, F I G M, Cárcel, S, Carmona, J M, Castel, J, Catalá, J M, Cebrián, S, Cervera, A, Chan, D, Conde, C A N, Dafni, T, Dias, T H V T, Díaz, J, Egorov, M, Esteve, R, Evtoukhovitch, P, Fernandes, L M P, Ferrario, P, Ferreira, A L, Ferrer-Ribas, E, Freitas, E D C, Gehman, V M, Gil, A, Giomataris, I, Goldschmidt, A, Gómez, H, Gómez-Cadenas, J J, González, K, González-Díaz, D, Gutiérrez, R M, Hauptman, J, Morata, J A Hernando, Herrera, D C, Herrero, V, Iguaz, F J, Irastorza, I G, Kalinnikov, V, Kiang, D, Labarga, L, Liubarsky, I, Lopes, J A M, Lorca, D, Losada, M, Luzón, G, Marí, A, Martín-Albo, J, Martínez, A, Miller, T, Moiseenko, A, Monrabal, F, Monteiro, C M B, Monzó, J M, Mora, F J, Moutinho, L M, Vidal, J Muñoz, Luz, H Natal da, Navarro, G, Nebot, M, Nygren, D, Oliveira, C A B, Palma, R, Pérez, J, Aparicio, J L Pérez, Renner, J, Ripoll, L, Rodríguez, A, Rodríguez, J, Santos, F P, Santos, J M F dos, Segui, L, Serra, L, Shuman, D, Sofka, C, Sorel, M, Toledo, J F, Tomás, A, Torrent, J, Tsamalaidze, Z, Vázquez, D, Velicheva, E, Veloso, J F C A, Villar, J A, Webb, R C, Weber, T, White, J, Yahlali, N
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Language:English
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Summary:In this Technical Design Report (TDR) we describe the NEXT-100 detector that will search for neutrinoless double beta decay ( beta beta 0v) in super(136)Xe at the Laboratorio Subterraneo de Canfranc (LSC), in Spain. The document formalizes the design presented in our Conceptual Design Report (CDR): an electroluminescence time projection chamber, with separate readout planes for calorimetry and tracking, located, respectively, behind cathode and anode. The detector is designed to hold a maximum of about 150 kg of xenon at 15 bar, or 100 kg at 10 bar. This option builds in the capability to increase the total isotope mass by 50% while keeping the operating pressure at a manageable level. The readout plane performing the energy measurement is composed of Hamamatsu R1 1410-10 photomultipliers, specially designed for operation in low-background, xenon-based detectors. Each individual PMT will be isolated from the gas by an individual, pressure resistant enclosure and will be coupled to the sensitive volume through a sapphire window. The tracking plane consists in an array of Hamamatsu S10362-11-050P MPPCs used as tracking pixels. They will be arranged in square boards holding 64 sensors (8 x 8) with a 1-cm pitch. The inner walls of the TPC, the sapphire windows and the boards holding the MPPCs will be coated with tetraphenyl butadiene (TPB), a wavelength shifter, to improve the light collection.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/7/06/T06001