Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment
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Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment

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Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment

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dc.contributor.author Álvarez Puerta, Vicente
dc.contributor.author Ball, M.
dc.contributor.author Cárcel García, Sara
dc.contributor.author Cervera Villanueva, Anselmo
dc.contributor.author Díaz Medina, José
dc.contributor.author Ferrario, Paola
dc.contributor.author Gil Ortiz, Alejandro
dc.contributor.author Gómez Cadenas, Juan José
dc.contributor.author Dafni, T.
dc.contributor.author Liubarsky, Igor
dc.contributor.author Lorca Galindo, David
dc.contributor.author Martín-Albo Simón, Justo
dc.contributor.author Martínez Pérez, Alberto
dc.contributor.author Monrabal Capilla, Francesc
dc.contributor.author Muñoz Vidal, J.
dc.contributor.author Nebot Guinot, Miquel
dc.contributor.author Rodríguez Samaniego, Javier
dc.contributor.author Freitas, E. D. C.
dc.contributor.author Serra Díaz-Cano, Luis
dc.contributor.author Sorel, Michel
dc.date.accessioned 2013-11-18T12:19:20Z
dc.date.available 2013-11-18T12:19:20Z
dc.date.issued 2013
dc.identifier.uri http://dx.doi.org/10.1088/1748-0221/8/05/T05002
dc.identifier.uri http://hdl.handle.net/10550/31109
dc.description.abstract NEXT-100 experiment aims at searching the neutrinoless double-beta decay of the Xe-136 isotope using a TPC filled with a 100 kg of high-pressure gaseous xenon, with 90% isotopic enrichment. The experiment will take place at the Laboratorio Subterraneo de Canfranc (LSC), Spain. NEXT-100 uses electroluminescence (EL) technology for energy measurement with a resolution better than 1% FWHM. The gaseous xenon in the TPC additionally allows the tracks of the two beta particles to be recorded, which are expected to have a length of up to 30 cm at 10 bar pressure. The ability to record the topological signature of the beta beta 0 nu events provides a powerful background rejection factor for the beta beta experiment. In this paper, we present a novel 3D imaging concept using SiPMs coated with tetraphenyl butadiene (TPB) for the EL read out and its first implementation in NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment. The design and the first characterization measurements of the NEXT-DEMO SiPM tracking system are presented. The SiPM response uniformity over the tracking plane drawn from its gain map is shown to be better than 4%. An automated active control system for the stabilization of the SiPMs gain was developed, based on the voltage supply compensation of the gain drifts. The gain is shown to be stabilized within 0.2% relative variation around its nominal value, provided by Hamamatsu, in a temperature range of 10 degrees C. The noise level from the electronics and the SiPM dark noise is shown to lay typically below the level of 10 photoelectrons (pe) in the ADC. Hence, a detection threshold at 10 pe is set for the acquisition of the tracking signals. The ADC full dynamic range (4096 channels) is shown to be adequate for signal levels of up to 200 pe/mu s, which enables recording most of the tracking signals.
dc.relation.ispartof Journal Of Instrumentation, 2013, vol. 8, p. T05002
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Álvarez Puerta, Vicente Ball, M. Cárcel García, Sara Cervera Villanueva, Anselmo Díaz Medina, José Ferrario, Paola Gil, A. Gómez Cadenas, Juan José Dafni, T. Liubarsky, Igor Lorca Galindo, David Martín-Albo Simón, Justo Martínez Pérez, Alberto Monrabal Capilla, Francesc Muñoz Vidal, J. Nebot Guinot, Miquel Rodríguez Samaniego, Javier Freitas, E. D. C. Serra Diaz-Cano, Luis Sorel, Michel 2013 Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment Journal Of Instrumentation 8 T05002
dc.subject Física
dc.title Design and characterization of the SiPM tracking system of NEXT-DEMO, a demonstrator prototype of the NEXT-100 experiment
dc.type info:eu-repo/semantics/article
dc.date.updated 2013-11-18T12:19:20Z
dc.identifier.doi http://dx.doi.org/10.1088/1748-0221/8/05/T05002
dc.identifier.idgrec 090843

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