NEXT-DEMO 的初步结果：NEXT-100 实验的大规模原型
仪器与探测器
2013-04-04 v4
摘要
NEXT-DEMO 是 NEXT-100 探测器的大规模原型，NEXT-100 是一个电致发光时间投影室，旨在利用 100 至 150 kg 的富集氙气搜寻 Xe-136 的无中微子双贝塔衰变。构建 NEXT-DEMO 是为了验证 NEXT-100 的预期性能，即 2.5 MeV 处优于 1% FWHM 的能量分辨率和事件拓扑重建。在本文中，我们描述了该原型及其初步结果。使用伽马射线校准源，在 10 bar 压力下获得了 511 keV 处 1.75% FWHM 的分辨率（外推至 2.5 MeV 处为 0.8% FWHM）。此外，还展示了沿纵向坐标的事件拓扑基础研究，证明了利用电致发光 TPC 可以在高压氙气中识别电子径迹独特的 dE/dx。
引用
@article{arxiv.1211.4838,
title = {Initial results of NEXT-DEMO, a large-scale prototype of the NEXT-100 experiment},
author = {NEXT Collaboration and V. Álvarez and F. I. G. M. 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 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. Segui 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 D. Vázquez and J. F. C. A. Veloso and J. A. Villar and R. Webb and J. T White and N. Yahlali},
journal= {arXiv preprint arXiv:1211.4838},
year = {2013}
}
备注
23 pages, 22 figures. Version accepted for publication by the Journal of Instrumentation (JINST)