高压氙-氦气体混合物中的电子漂移与纵向扩散
仪器与探测器
2019-09-04 v4 核实验
摘要
我们报道了纯氙气以及氙-氦气体混合物在1-9 bar压力和50-300 V/cm电场强度下电子漂移速度和纵向扩散系数的新测量。在纯氙中，我们发现对于所有，漂移速度和扩散系数都与世界数据高度吻合。然而，在纯氙低处（低于TPC实验通常探测的约化场范围），发现纵向扩散系数大于理论预测值。在氙-氦气体混合物中，在稍大的处观察到类似效应。发现氙-氦混合物中的漂移速度在理论上能被很好预测。尽管发现氙-氦混合物中的纵向扩散大于预期，但基于所测纵向扩散系数的外推表明，使用氦添加剂来减小氙气中的横向扩散仍是一个有前景的方向。
引用
@article{arxiv.1902.05544,
title = {Electron Drift and Longitudinal Diffusion in High Pressure Xenon-Helium Gas Mixtures},
author = {A. D. McDonald and K. Woodruff and B. Al Atoum and D. González-Díaz and B. J. P. Jones and C. Adams and V. Álvarez and L. Arazi and I. J. Arnquist 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 E. Church and C. A. N. Conde and G. Díaz and J. Díaz and M. Diesburg and J. Escada and R. Esteve and R. Felkai and A. F. M. Fernandes and L. M. P. Fernandes and P. Ferrario and A. L. Ferreira and E. D. C. Freitas and J. Generowicz and A. Goldschmidt and J. J. Gómez-Cadenas and R. Guenette and R. M. Gutiérrez and J. Haefner and K. Hafidi and J. Hauptman and C. A. O. Henriques and J. A. Hernando Morata and P. Herrero and V. Herrero and S. Johnston and M. Kekic and L. Labarga and A. Laing and P. Lebrun and N. López-March and M. Losada and R. D. P. Mano and J. Martín-Albo and A. Martínez and G. Martínez-Lema and F. Monrabal and C. M. B. Monteiro and F. J. Mora and J. MuñozVidal and P. Novella and D. R. Nygren and B. Palmeiro and A. Para and J. Pérez and M. Querol and J. Renner and J. Repond and S. Riordan and L. Ripoll and Y. Rodriguez Garcia and J. Rodríguez and L. Rogers and B. Romeo and C. Romo-Luque and F. P. Santos and J. M. F. dos Santos and A. Simón and C. Sofka and M. Sorel and T. Stiegler and J. F. Toledo and J. Torrent and A. Usón and J. F. C. A. Veloso and R. Webb and Weiss-Babai and J. T. White and N. Yahlali},
journal= {arXiv preprint arXiv:1902.05544},
year = {2019}
}