使用硅光电倍增管追踪阵列的 NEXT-DEMO 原型机的运行与初步结果
仪器与探测器
2015-06-16 v2
摘要
NEXT-DEMO 是一个高压氙气时间投影室（TPC），作为 NEXT-100 无中微子双贝塔衰变实验的技术试验台和原理验证装置。在其当前配置中，该装置完全实现了 NEXT-100 的设计理念。这是一种非对称 TPC，其能量平面由光电倍增管组成，追踪平面由涂有 TPB 的硅光电倍增管（SiPM）组成。采用这种新配置的探测器已被用于重建致密气体中电子的特征信号，证明了识别最小电离粒子（MIP）和“团簇”（blob）区域的能力。此外，SiPM 追踪平面允许定义一个大的有效 Fiducial 区域，在该区域内测得 511 keV 处的能量分辨率极佳，为 1.82% FWHM（该值外推至氙的 Qbetabeta 时为 0.83%）。
引用
@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}
}
备注
20 pages, 17 figures. This version: corrected typos, updated acknowledgements. Ready for submission to the Journal of Instrumentation (JINST)