萨德伯里中微子观测台用低本底$^3$He 正比计数器阵列
核实验
2016-08-14 v1
摘要
为了在萨德伯里中微子观测台（SNO）中对太阳中微子的总活性通量进行独特测量，构建了一个中性流探测器（NCDs）阵列。SNO 实验第三阶段的数据采集于 2004 年 11 月至 2006 年 11 月之间，即在添加 NCD 阵列以提高 SNO 探测器的中性流灵敏度之后。该阵列由 36 串填充了He 和 CF混合气体的正比计数器组成，能够探测重水（DO）中中微子 - 氘核中性流反应释放的中子；另有 4 串填充了He 和 CF混合气体，用于本底测量。正比计数器直径为 5 cm。部署的阵列总长度为 398 m。SNO NCD 阵列是迄今为止生产的放射性本底最低的大型正比计数器阵列。本文描述了 NCD 阵列的设计、建造、部署和特性表征，讨论了电子学和数据采集系统，并分析了事件信号特征与本底。
引用
@article{arxiv.0705.3665,
title = {An array of low-background $^3$He proportional counters for the Sudbury Neutrino Observatory},
author = {J. F. Amsbaugh and J. M. Anaya and J. Banar and T. J. Bowles and M. C. Browne and T. V. Bullard and T. H. Burritt and G. A. Cox-Mobrand and X. Dai and H. Deng and M. Di Marco and P. J. Doe and M. R. Dragowsky and C. A. Duba and F. A. Duncan and E. D. Earle and S. R. Elliott and E. -I. Esch and H. Fergani and J. A. Formaggio and M. M. Fowler and J. E. Franklin and P. Geissbühler and J. V. Germani and A. Goldschmidt and E. Guillian and A. L. Hallin and G. Harper and P. J. Harvey and R. Hazama and K. M. Heeger and J. Heise and A. Hime and M. A. Howe and M. Huang and L. L. Kormos and C. Kraus and C. B. Krauss and J. Law and I. T. Lawson and K. T. Lesko and J. C. Loach and S. Majerus and J. Manor and S. McGee and K. K. S. Miknaitis and G. G. Miller and B. Morissette and A. Myers and N. S. Oblath and H. M. O'Keeffe and R. W. Ollerhead and S. J. M. Peeters and A. W. P. Poon and G. Prior and S. D. Reitzner and K. Rielage and R. G. H. Robertson and P. Skensved and A. R. Smith and M. W. E. Smith and T. D. Steiger and L. C. Stonehill and P. M. Thornewell and N. Tolich and B. A. VanDevender and T. D. Van Wechel and B. L. Wall and H. Wan Chan Tseung and J. Wendland and N. West and J. B. Wilhelmy and J. F. Wilkerson and J. M. Wouters},
journal= {arXiv preprint arXiv:0705.3665},
year = {2016}
}
备注
32 pages, 18 figures, 6 tables