Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment
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Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment

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Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment

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Álvarez Puerta, Vicente; Cárcel García, Sara; Cervera Villanueva, Anselmo; Díaz Medina, José; Ferrario, Paola; Gil Ortiz, Alejandro; Gómez Cadenas, Juan José Perfil; Laing, Andrew; Liubarsky, Igor; Lorca Galindo, David; Martín-Albo Simón, Justo; Martínez Pérez, Alberto; Monrabal Capilla, Francesc; Muñoz Vidal, J.; Nebot Guinot, Miquel; Rodríguez Samaniego, Javier; Simón Estévez, Ander; Sorel, Michel; Yahlali Haddou, Nadia
Aquest document és un/a article, creat/da en: 2013

Este documento está disponible también en : http://dx.doi.org/10.1088/1748-0221/8/04/P04002
NEXT-DEMO is a large scale prototype and demonstrator of the NEXT-100 High Pressure Xenon Gas TPC, which will search for the neutrinoless double beta decay of Xe-136 using 100-150 kg of enriched xenon gas. The apparatus was built to prove the expected performance of NEXT-100, namely, energy resolution better than 1% FWHM at 2.5 MeV and event topological reconstruction. In this paper we describe the operation and initial results of the detector. A resolution of 1.7% FWHM at 511 keV (0.77% FWHM at 2.5 MeV) is obtained in the full fiducial volume of the detector. A topological analysis shows that electrons are identified by the characteristic blob energy deposit associated to the Bragg peak in 98.5% of the cases, with a rate of misidentification (two blobs) of 0.14%.

    Álvarez Puerta, Vicente Cárcel García, Sara Cervera Villanueva, Anselmo Díaz Medina, José Ferrario, Paola Gil, A. Gómez Cadenas, Juan José Laing, Andrew Liubarsky, Igor Lorca Galindo, David Martín-Albo Simón, Justo Martínez Pérez, Alberto Monrabal Capilla, Francesc Muñoz Vidal, J. Nebot Guinot, Miquel Rodriguez Samaniego, Javier Simón Estevez, Ander Sorel, Michel Yahlali Haddou, Nadia 2013 Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment Journal Of Instrumentation 8 P04002
http://dx.doi.org/10.1088/1748-0221/8/04/P04002
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