KATRIN 谱仪间彭宁放电的抑制
仪器与探测器
2020-09-18 v2
摘要
卡尔斯鲁厄氚中微子实验（KATRIN）旨在通过精确测量氚 衰变谱的端点区，以 （90 C.L.）的灵敏度确定有效电子（反）中微子质量。它使用串联静电谱仪作为 MAC-E（磁绝热准直结合静电）滤波器。在预谱仪与主谱仪之间的空间中，当两谱仪之间偏置于各自标称电位的超导磁体通电时，会产生一个不可避免的彭宁陷阱。积累于此陷阱中的电子可能导致放电，从而产生额外的本底电子，并危及下游的谱仪和探测器段。为应对该问题，在位于两谱仪间磁体孔内的束流线上安装了“电子捕集器”。这些捕集器可横穿磁通管移动，并在亚毫秒时间尺度上拦截沿其磁旋运动路径储存的电子。在本文中，我们报告了电子捕集器的设计与成功调试，并给出其在降低实验本底方面效率的结果。
引用
@article{arxiv.1911.09633,
title = {Suppression of Penning discharges between the KATRIN spectrometers},
author = {M. Aker and K. Altenmüller and A. Beglarian and J. Behrens and A. Berlev and U. Besserer and K. Blaum and F. Block and S. Bobien and B. Bornschein and L. Bornschein and H. Bouquet and T. Brunst and T. S. Caldwell and S. Chilingaryan and W. Choi and K. Debowski and M. Deffert and M. Descher and D. Díaz Barrero and P. J. Doe and O. Dragoun and G. Drexlin and S. Dyba and K. Eitel and E. Ellinger and R. Engel and S. Enomoto and D. Eversheim and M. Fedkevych and A. Felden and J. A. Formaggio and F. Fränkle and G. B. Franklin and H. Frankrone and F. Friedel and A. Fulst and K. Gauda and W. Gil and F. Glück and S. Grohmann and R. Grössle and R. Gumbsheimer and M. Hackenjos and V. Hannen and J. Hartmann and N. Haußmann and F. Heizmann and J. Heizmann and K. Helbing and S. Hickford and D. Hillesheimer and D. Hinz and T. Höhn and B. Holzapfel and S. Holzmann and T. Houdy and A. Jansen and C. Karl and J. Kellerer and N. Kernert and L. Kippenbrock and M. Klein and C. Köhler and L. Köllenberger and A. Kopmann and M. Korzeczek and A. Kovalík and B. Krasch and H. Krause and B. Kuffner and N. Kunka and T. Lasserre and L. La Cascio and O. Lebeda and B. Lehnert and J. Letnev and F. Leven and T. L. Le and S. Lichter and A. Lokhov and M. Machatschek and E. Malcherek and A. Marsteller and E. L. Martin and C. Melzer and A. Menshikov and S. Mertens and B. Monreal and K. Müller and U. Naumann and H. Neumann and S. Niemes and M. Noe and H. -W. Ortjohann and A. Osipowicz and E. Otten and D. S. Parno and A. Pollithy and A. W. P. Poon and J. M. L. Poyato and F. Priester and P. C. -O. Ranitzsch and O. Rest and R. Rinderspacher and R. G. H. Robertson and C. Rodenbeck and P. Rohr and M. Röllig and C. Röttele and M. Ryšavý and R. Sack and A. Saenz and P. Schäfer and L. Schimpf and K. Schlösser and M. Schlösser and L. Schlüter and M. Schrank and B. Schulz and H. Seitz-Moskaliuk and W. Seller and V. Sibille and D. Siegmann and M. Slezák and F. Spanier and M. Steidl and M. Steven and M. Sturm and M. Suesser and M. Sun and D. Tcherniakhovski and H. H. Telle and L. A. Thorne and T. Thümmler and N. Titov and I. Tkachev and N. Trost and K. Valerius and D. Vénos and R. Vianden and A. P. Vizcaya Hernández and M. Weber and C. Weinheimer and C. Weiss and S. Welte and J. Wendel and J. F. Wilkerson and J. Wolf and S. Wüstling and W. Xu and Y. -R. Yen and S. Zadoroghny and G. Zeller},
journal= {arXiv preprint arXiv:1911.09633},
year = {2020}
}
备注
- 12 pages, 14 figures, LaTeX; typos corrected, references added; precised a few arguments, added additional discussions, results unchanged