利用$^{83m}\mathrm{Kr}$衰变对NEXT-White探测器进行校准
仪器与探测器
2018-11-14 v5 高能物理 - 实验
摘要
NEXT-White (NEW)探测器目前是世界上最大的具有电致发光读出的无线电纯高压氙气时间投影室。NEXT-White自2016年10月起在Laboratorio Subterráneo de Canfranc (LSC)运行。本文描述了在2017年3月至11月（Run II）的长程运行期间利用衰变进行的校准。氪校准用于修正有限的漂移电子寿命，以及测量能量对事件位置的依赖关系（主要由立体角覆盖变化引起）。在生成校准图以修正这两种效应后，我们测得41.5 keV点状沉积在全腔中的优异能量分辨率为(4.553 0.010 (stat.) 0.324 (sys.)) % FWHM，在受限 fiducial 体积中为(3.804 0.013 (stat.) 0.112 (sys.)) % FWHM。利用朴素的1/标度，这些数值对应于氙双β衰变（2458 keV）的能量处分辨率分别为(0.516 0.0014 (stat.) 0.0421 (sys.)) % FWHM和(0.4943 0.0017 (stat.) 0.0146 (sys.)) % FWHM，完全处于我们1%目标值范围内。
引用
@article{arxiv.1804.01780,
title = {Calibration of the NEXT-White detector using $^{83m}\mathrm{Kr}$ decays},
author = {G. Martínez-Lema and J. A. Hernando Morata and B. Palmeiro and A. Botas and P. Ferrario and F. Monrabal and A. Laing and J. Renner and A. Simón and J. J. Gómez-Cadenas and C. Adams and V. Álvarez and L. Arazi and C. D. R. Azevedo and K. Bailey and F. Ballester and J. M. Benlloch-Rodríguez and F. I. G. M. Borges and S. Cárcel and J. V. Carrión and S. Cebrián and C. A. N. Conde and J. Díaz and M. Diesburg and J. Escada and R. Esteve and R. Felkai and L. M. P. Fernandes and A. L. Ferreira and E. D. C. Freitas and J. Generowicz and A. Goldschmidt and D. González-Díaz and R. Guenette and R. M. Gutiérrez and K. Hafidi and J. Hauptman and C. A. O. Henriques and A. I. Hernandez and V. Herrero and S. Johnston and B. J. P. Jones and M. Kekic and L. Labarga and P. Lebrun and N. López-March and M. Losada and J. Martín-Albo and A. Martínez and A. D. McDonald and C. M. B. Monteiro and F. J. Mora and J. Muñoz Vidal and M. Musti and M. Nebot-Guinot and P. Novella and D. R. Nygren and A. Para and J. Pérez and M. Querol and J. Repond and S. Riordan and L. Ripoll and J. Rodríguez and L. Rogers and C. Romo and F. P. Santos and J. M. F. dos Santos and C. Sofka and M. Sorel and T. Stiegler and J. F. Toledo and J. Torrent and J. F. C. A. Veloso and R. Webb and J. T. White and N. Yahlalib},
journal= {arXiv preprint arXiv:1804.01780},
year = {2018}
}
备注
20 pages, 18 figures