{"paper":{"title":"Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"A. Cervera, A. Gil, A. Goldschmidt, A. Laing, A. L. Ferreira, A. Mar\\'i, A. Mart\\'inez, A. Moiseenko, A. Rodr\\'iguez, A. Sim\\'on, A. Tom\\'as, C. A. B. Oliveira, C. A. N. Conde, C. M. B. Monteiro, C. Sofka, D. C. Herrera, D. Gonz\\'alez-D\\'iaz, D. Lorca, D. Nygren, D. Shuman, D. V\\'azquez, E. D. C. Freitas, F. I. G. M. Borges, F. J. Iguaz, F. J. Mora, F. Monrabal, F. P. Santos, G. Luz\\'on, G. Navarro, H. G\\'omez, H. Natal da Luz, I. G. Irastorza, I. Liubarsky, J. A. Hernando Morata, J. A. M. Lopes, J. A. Villar, J. Castel, J. D\\'iaz, J. F. C. A. Veloso, J. F. Toledo, J. Hauptman, J. J. G\\'omez-Cadenas, J. L. P\\'erez Aparicio, J. Mart\\'in-Albo, J. M. F. dos Santos, J. Mu\\~noz Vidal, J. P\\'erez, J. Renner, J. Rodr\\'iguez, J. Torrent, J. T White, L. Labarga, L. M. Moutinho, L. M. P. Fernandes, L. Ripoll, L. Segui, L. Serra, M. A. Jinete, M. Egorov, M. Losada, M. Nebot-Guinot, M. Sorel, NEXT Collaboration: V. \\'Alvarez, N. Yahlali, P. Evtoukhovitch, P. Ferrario, R. Esteve, R. M. Guti\\'errez, R. Palma, R. Webb, S. C\\'arcel, S. Cebri\\'an, T. Dafni, T. H. V. T. Dias, T. Miller, V. M. Gehman, Z. Tsamalaidze","submitted_at":"2012-11-20T19:28:23Z","abstract_excerpt":"NEXT-DEMO is a large-scale prototype of the NEXT-100 detector, an electroluminescent time projection chamber that will search for the neutrinoless double beta decay of Xe-136 using 100 to 150 kg of enriched xenon gas. NEXT-DEMO 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 prototype and its initial results. A resolution of 1.75% FWHM at 511 keV (which extrapolates to 0.8% FWHM at 2.5 MeV) was obtained at 10 bar pressure using a gamma-ray calibration source. Al"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.4838","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}