Milagro宇宙线望远镜的校准
天体物理学
2007-05-23 v1
摘要
Milagro探测器是一种使用水切伦科夫技术的空气簇射阵列，能够持续监测接近1 TeV能量的天空。该探测器由20000公吨纯水构成，配备723个光电倍增管(PMTs)。PMTs以3米间距的晶格排列成两层结构，覆盖5000 面积。簇射方向由PMT信号的相对定时确定，这需要公共时间参考和幅度斜率校正以提高时间分辨率。提供这些的校准系统由一个驱动30个扩散光源的脉冲激光组成，部署在水池中以对PMTs进行交叉校准。该系统能够使用阈值定时技术校准PMTs的时间和脉冲高度。绝对能量刻度由穿过探测器的单缪子提供。将介绍Milagro探测器及其原型Milagrito的校准系统描述。
引用
@article{arxiv.astro-ph/9906417,
title = {Calibration of the Milagro Cosmic Ray Telescope},
author = {R. Atkins and W. Benbow and D. Berley and M. -L. Chen and D. G. Coyne and R. S. Delay and B. L. Dingus and D. E. Dorfan and R. W. Ellsworth and D. Evans and A. Falcone and L. Fleysher and R. Fleysher and G. Gisler and J. A. Goodman and T. J. Haines and C. M. Hoffman and S. Hugenberger and L. A. Kelley and I. Leonor and J. Macri and M. McConnell and J. F. McCullough and J. E. McEnery and R. S. Miller and A. I. Mincer and M. F. Morales and P. Nemethy and J. M. Ryan and M. Schneider and B. Shen and A. Shoup and G. Sinnis and A. J. Smith and G. W. Sullivan and T. N. Thompson and O. T. Tumer and K. Wang and M. O. Wascko and S. Westerhoff and D. A. Williams and T. Yang and G. B. Yodh},
journal= {arXiv preprint arXiv:astro-ph/9906417},
year = {2007}
}
备注
4 pages, submitted to the XXVI International Cosmic Ray Conference