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arXiv 1306.0471physics.ins-det
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使用硅光电倍增器跟踪阵列的NEXT-DEMO样机的运行和初步结果

Operation and first results of the NEXT-DEMO prototype using a silicon photomultiplier tracking array

The NEXT Collaboration, V. Álvarez, F. I. G. Borges, S. Cárcel, J. Castel, S. Cebrián, A. Cervera, C. A. N. Conde, T. Dafni, T. H. V. T. Dias, J. Díaz, M. Egoro… 展开作者

The NEXT Collaboration, V. Álvarez, F. I. G. 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, G. 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. Seguí, L. Serra, D. Shuman, A. Simón, C. Sofka, M. Sorel, J. F. Toledo, A. Tomás, J. Torrent, Z. Tsamalaidze, J. F. C. A. Veloso, J. A. Villar, R. Webb, J. T. White, N. Yahlali

摘要:

NEXT-DEMO是一个高压氙气TPC,作为NEXT-100无中微子双β衰变实验的技术试验台和演示器。在其当前配置中,该设备完全实现NEXT-100设计概念。这是一种非对称TPC,其能量平面由光电倍增器制成,跟踪平面由涂有TPB的硅光电倍增器(SiPM)制成。这种新结构的探测器已被用于重建致密气体中电子的特征签名。展示识别MIP和“斑点”区域的能力。此外,SiPM跟踪平面允许定义一个大的基准区域,在该区域中,已经测量到在511 keV下1.82%FWHM的优异能量分辨率(在氙Qbetabeta下外推到0.83%的值)。

英文摘要:

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).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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