Operation and first results of the NEXT-DEMO prototype using a silicon photomultiplier tracking array
Abstract
NEXT-DEMO is a high-pressure xenon gas TPC which acts as a technological test-bed and demonstrator for the NEXT-100 neutrinoless double beta decay experiment. In its current configuration the apparatus fully implements the NEXT-100 design concept. This is an asymmetric TPC, with an energy plane made of photomultipliers and a tracking plane made of silicon photomultipliers (SiPM) coated with TPB. The detector in this new configuration has been used to reconstruct the characteristic signature of electrons in dense gas. Demonstrating the ability to identify the MIP and "blob" regions. Moreover, the SiPM tracking plane allows for the definition of a large fiducial region in which an excellent energy resolution of 1.82% FWHM at 511 keV has been measured (a value which extrapolates to 0.83% at the xenon Qbetabeta).
Keywords
Cite
@article{arxiv.1306.0471,
title = {Operation and first results of the NEXT-DEMO prototype using a silicon photomultiplier tracking array},
author = {The NEXT Collaboration and V. Álvarez and F. I. G. Borges and S. Cárcel and J. Castel and S. Cebrián and A. Cervera and C. A. N. Conde and T. Dafni and T. H. V. T. Dias and J. Díaz and M. Egorov and R. Esteve and P. Evtoukhovitch and L. M. P. Fernandes and P. Ferrario and A. L. Ferreira and E. D. C. Freitas and V. M. Gehman and A. Gil and A. Goldschmidt and H. Gómez and J. J. Gómez-Cadenas and D. González-Díaz and R. M. Gutiérrez and J. Hauptman and J. A. Hernando Morata and D. C. Herrera and F. J. Iguaz and I. G. Irastorza and M. A. Jinete and L. Labarga and A. Laing and I. Liubarsky and J. A. M. Lopes and D. Lorca and M. Losada and G. Luzón and A. Marí and J. Martín-Albo and A. Martínez and G. Martínez and T. Miller and A. Moiseenko and F. Monrabal and C. M. B. Monteiro and F. J. Mora and L. M. Moutinho and J. Muñoz Vidal and H. Natal da Luz and G. Navarro and M. Nebot-Guinot and D. Nygren and C. A. B. Oliveira and R. Palma and J. Pérez and J. L. Pérez Aparicio and J. Renner and L. Ripoll and A. Rodríguez and J. Rodríguez and F. P. Santos and J. M. F. dos Santos and L. Seguí and L. Serra and D. Shuman and A. Simón and C. Sofka and M. Sorel and J. F. Toledo and A. Tomás and J. Torrent and Z. Tsamalaidze and J. F. C. A. Veloso and J. A. Villar and R. Webb and J. T. White and N. Yahlali},
journal= {arXiv preprint arXiv:1306.0471},
year = {2015}
}
Comments
20 pages, 17 figures. This version: corrected typos, updated acknowledgements. Ready for submission to the Journal of Instrumentation (JINST)