基于NEXT-White探测器中扩散效应的事件位置重建演示
高能物理 - 实验
2024-03-19 v1 仪器与探测器
摘要
惰性元素时间投影室是物理中稀有事件探测的领先技术，例如用于暗物质和无中微子双贝塔衰变搜寻。时间投影室通常利用prompt闪烁与延迟电荷收集信号的相对时间来确定漂移方向上的事件位置，从而实现对漂移方向绝对位置的重建。本文探讨了在纯高压氙气时间投影室中通过量化电子扩散来分配事件漂移距离的替代方法。来自NEXT-White探测器的数据表明，该方法对高能和低能事件均能取得良好的位置分配精度。利用来自Kr校准电子俘获（能量keV）的点状能量沉积，低能事件的起源位置被确定到cm精度，偏差mm。随后采用卷积神经网络方法量化较长径迹（E1.5MeV）的扩散，在事件重心上获得3cm的精度。这些方法所达到的精度表明，在纯氙气中于Q处实现优于1% FWHM的能量校准是可行的，同时也表明在未来大型探测器中使用不依赖初级闪烁的替代方法进行事件 fiducialization（ fiducialization：有效体积内事件筛选）具有潜力。
引用
@article{arxiv.2311.03441,
title = {Demonstration of Event Position Reconstruction based on Diffusion in the NEXT-White Detector},
author = {J. Haefner and K. E. Navarro and R. Guenette and B. J. P. Jones and A. Tripathi and C. Adams and H. Almazán and V. Álvarez and B. Aparicio and A. I. Aranburu and L. Arazi and I. J. Arnquist and F. Auria-Luna and S. Ayet and C. D. R. Azevedo and K. Bailey and F. Ballester and M. del Barrio-Torregrosa and A. Bayo and J. M. BenllochRodríguez and F. I. G. M. Borges and A. Brodolin and N. Byrnes and S. Cárcel and J. V. Carrión and S. Cebrián and E. Church and L. Cid and C. A. N. Conde and T. Contreras and F. P. Cossío and E. Dey and G. Díaz and T. Dickel and M. Elorza and J. Escada and R. Esteve and R. Felkai and L. M. P. Fernandes and P. Ferrario and A. L. Ferreira and F. W. Foss and E. D. C. Freitas and Z. Freixa and J. Generowicz and A. Goldschmidt and J. J. Gómez-Cadenas and R. González and J. Grocott and K. Hafidi and J. Hauptman and C. A. O. Henriques and J. A. Hernando Morata and P. Herrero-Gómez and V. Herrero and C. Hervés Carrete and Y. Ifergan and L. Labarga and L. Larizgoitia and A. Larumbe and P. Lebrun and F. Lopez and N. López-March and R. Madigan and R. D. P. Mano and A. P. Marques and J. Martín-Albo and G. Martínez-Lema and M. Martínez-Vara and Z. E. Meziani and R. L. Miller and K. Mistry and J. Molina-Canteras and F. Monrabal and C. M. B. Monteiro and F. J. Mora and J. Muñoz Vidal and P. Novella and A. Nuñez and D. R. Nygren and E. Oblak and J. Palacio and B. Palmeiro and A. Para and I. Parmaksiz and J. Pelegrin and M. Pérez Maneiro and M. Querol and A. B. Redwine and J. Renner and I. Rivilla and J. Rodríguez and C. Rogero and L. Rogers and B. Romeo and C. Romo-Luque and F. P. Santos and J. M. F. dos Santos and I. Shomroni and A. Simón and S. R. Soleti and M. Sorel and J. Soto-Oton and J. M. R. Teixeira and J. F. Toledo and J. Torrent and A. Trettin and A. Usón and J. F. C. A. Veloso and J. Waiton and J. T. White},
journal= {arXiv preprint arXiv:2311.03441},
year = {2024}
}
备注
18 pages, 16 figures