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

6533b82efe1ef96bd1293e3b

RESEARCH PRODUCT

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

Next Collaboration V. ÁLvarez F. I. G. M. Borges S. Cárcel J. Castel S. Cebrián A. Cervera C. A. N. Conde T. Dafni T. H. V. T. Dias J. Díaz M. Egorov R. Esteve P. Evtoukhovitch L. M. P. Fernandes P. Ferrario A. L. Ferreira E. D. C. Freitas V. M. Gehman A. Gil A. Goldschmidt H. Gómez J. J. Gómez-cadenas D. González-díaz R. M. Gutiérrez J. Hauptman J. A. Hernando Morata D. C. Herrera F. J. Iguaz I. G. Irastorza M. A. Jinete L. Labarga A. Laing I. Liubarsky J. A. M. Lopes D. Lorca M. Losada G. Luzón A. Marí J. Martín-albo A. Martínez T. Miller A. Moiseenko F. Monrabal C. M. B. Monteiro F. J. Mora L. M. Moutinho J. Muñoz Vidal H. Natal Da Luz G. Navarro M. Nebot-guinot D. Nygren C. A. B. Oliveira R. Palma J. Pérez J. L. Pérez Aparicio J. Renner L. Ripoll A. Rodríguez J. Rodríguez F. P. Santos J. M. F. Dos Santos L. Segui L. Serra D. Shuman A. Simón C. Sofka M. Sorel J. F. Toledo A. Tomás J. Torrent Z. Tsamalaidze D. Vázquez J. F. C. A. Veloso J. A. Villar R. Webb J. T White N. Yahlali

subject

MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS Physics - Instrumentation and Detectors Bar (music)Isòtops radioactius -- Desintegració Time projection chambers Pattern recognition Systems FOS: Physical sciences chemistry.chemical_element Electron 7. Clean energy 01 natural sciences Nuclear physics TECNOLOGIA ELECTRONICA Xenon Cambres d'ionització Cluster analysis Double beta decay Pattern recognition 0103 physical sciences Calibration Reconeixement de formes (Informàtica)Calibratge 010306 general physics Instrumentation Mathematical Physics Radioisotopes -- Decay Physics Calibration and fitting methods Time projection chamber 010308 nuclear & particles physics Detector Cluster finding Física Instrumentation and Detectors (physics.ins-det)Double-beta decay detectors Anàlisi de conglomerats chemistry Calibration Event (particle physics)Ionization Chambers

description

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.

year	journal	country	edition	language
2013-01-01

10.1088/1748-0221/8/04/p04002 https://hdl.handle.net/10316/80018