@Article{NEXTCollaborationAlvarez_etal2013, author="NEXT Collaboration (Alvarez, V. et al and Carcel, S. and Cervera-Villanueva, A. and Diaz, J. and Ferrario, P. and Gil, A. and Gomez-Cadenas, J. J. and Laing, A. and Liubarsky, I. and Lorca, D. and Martin-Albo, J. and Martinez, A. and Monrabal, F. and Mu{\~{n}}oz Vidal, J. and Nebot-Guinot, M. and Rodriguez, J. and Serra, L. and Simon, A. and Sorel, M. and Yahlali, N.", title="Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment", journal="Journal of Instrumentation", year="2013", publisher="Iop Publishing Ltd", volume="8", pages="P04002 - 25pp", optkeywords="Double-beta decay detectors; Time projection chambers; Pattern recognition; cluster finding; calibration and fitting methods", abstract="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 100-150 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 2.5MeV 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. Also, a basic study of the event topology along the longitudinal coordinate is presented, proving that it is possible to identify the distinct dE/dx of electron tracks in high-pressure xenon using an electroluminescence TPC.", optnote="WOS:000317462400009", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1414), last updated on Mon, 15 Jun 2020 09:33:21 +0000", issn="1748-0221", doi="10.1088/1748-0221/8/04/P04002", opturl="http://arxiv.org/abs/1211.4838", opturl="https://doi.org/10.1088/1748-0221/8/04/P04002", archivePrefix="arXiv", eprint="1211.4838", language="English" }