KATRIN 超导磁体：概述与首批性能结果
仪器与探测器
2018-08-29 v2
摘要
KATRIN 实验旨在以史无前例的亚 eV 灵敏度从氚 β 衰变确定有效电子反中微子质量。所设计的强磁场最高达 6~T，在 191~Tcm 的磁通量内将 电子从源绝热导引至探测器。一串十个单螺线管磁体及两个较大的超导磁体系统已被设计、建造并安装在 70 米长的 KATRIN 束线上。磁通量的束流直径根据沿束线的磁通密度从 0.064~m 到 9~m 变化。两个输运与氚抽运段装配有曲折束管，以避免气态氚分子向下一束流段的直接“视线”分子束流效应。精细的束流对准已通过电子源成功交叉检验。此外，开发了磁体安全系统以保护复杂的磁体系统免受线圈失超或其他系统故障影响。磁体安全系统的主要功能已通过两个大型磁体系统成功测试。整套磁体链在首次使用放射性氪气的测试测量中以设计磁场的 70 运行了数周。源磁体的磁场稳定性在设计磁场的 70 下被证明优于每月 0.01。本文给出 KATRIN 超导磁体的概述并报道磁体的首批性能结果。
引用
@article{arxiv.1806.08312,
title = {The KATRIN Superconducting Magnets: Overview and First Performance Results},
author = {M. Arenz and W. -J. Baek and M. Beck and A. Beglarian and J. Behrens and T. Bergmann and A. Berlev and U. Besserer and K. Blaum and T. Bode and B. Bornschein and L. Bornschein and T. Brunst and N. Buzinsky and S. Chilingaryan and W. Q. Choi and M. Deffert and P. J. Doe and O. Dragoun and G. Drexlin and S. Dyba and F. Edzards and K. Eitel and E. Ellinger and R. Engel and S. Enomoto and M. Erhard and D. Eversheim and M. Fedkevych and J. A. Formaggio and F. M. Fränkle and G. B. Franklin and F. Friedel and A. Fulst and n W. Gil and F. Glück and A. Gonzalez Ureña and S. Grohmann and R. Grössle and R. Gumbsheimer and M. Hackenjos and V. Hannen and F. Harms and N. Haußmann and F. Heizmann and K. Helbing and W. Herz and S. Hickford and D. Hilk and M. A. Howe and A. Huber and A. Jansen and J. Kellerer and N. Kernert and L. Kippenbrock and M. Kleesiek and M. Klein and A. Kopmann and M. Korzeczek and A. Kovalík and B. Krasch and M. Kraus and L. Kuckert and T. Lasserre and O. Lebeda and J. Letnev and A. Lokhov and M. Machatschek and A. Marsteller and E. L. Martin and S. Mertens and S. Mirz and B. Monreal and H. Neumann and S. Niemes and A. Off and A. Osipowicz and uE. Otten and D. S. Parno and A. Pollithy and A. W. P. Poon and F. Priester and P. C. -O. Ranitzsch and O. Rest and R. G. H. Robertson and F. Roccati and C. Rodenbeck and M. Röllig and C. Röttele and M. Ryšavý and R. Sack and A. Saenz and L. Schimpf and K. Schlösser and M. Schlösser and K. Schönung and M. Schrank and H. Seitz-Moskaliuk and J. Sentkerestiová and V. Sibille and M. Slezák and M. Steidl and N. Steinbrink and M. Sturm and M. Suchopar 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 S. Zadoroghny},
journal= {arXiv preprint arXiv:1806.08312},
year = {2018}
}