SPIDER 飞行低温恒温器的热架构
天体物理仪器与方法
2020-12-22 v1 仪器与探测器
摘要
我们描述了用于 SPIDER 的低温系统，SPIDER 是一个气球载微波偏振计，将以度级角分辨率绘制 8% 的天空。该系统由一个 1284 L 液氦低温恒温器和一个 16 L 毛细管填充的超流氦罐组成，分别提供 4 K 和 1.5 K 的基础工作温度。闭循环氦-3 吸附制冷机为多个焦平面提供亚开尔文冷却功率，这些焦平面安装在单色望远镜插筒中。主氦罐通过隔热玻璃纤维弯曲件悬挂在真空容器内，并通过两个蒸气冷却屏和多层隔热层的组合来屏蔽热辐射。该系统可实现极低的仪器背景和超过 25 天的保持时间。低温系统的总质量（包括低温工质）约为 1000 kg。这使得常规的长航时气球飞行成为可能。我们将讨论该低温系统的设计、热分析和鉴定。
引用
@article{arxiv.1106.2507,
title = {Thermal architecture for the SPIDER flight cryostat},
author = {J. E. Gudmundsson and P. A. R. Ade and M. Amiri and S. J. Benton and R. Bihary and J. J. Bock and J. R. Bond and J. A. Bonetti and S. A. Bryan and H. C. Chiang and C. R. Contaldi and B. P. Crill and D. O'Dea and M. Farhang and J. P. Filippini and L. M. Fissel and N. N. Gandilo and S. R. Golwala and M. Halpern and M. Hasselfield and K. R. Helson and G. Hilton and W. Holmes and V. V. Hristov and K. D. Irwin and W. C. Jones and C. L. Kuo and C. J. MacTavish and P. V. Mason and T. E. Montroy and T. A. Morford and C. B. Netterfield and A. S. Rahlin and C. D. Reintsema and J. E. Ruhl and M. C. Runyan and M. A. Schenker and J. A. Shariff and J. D. Soler and A. Trangsrud and C. Tucker and R. S. Tucker and A. D. Turner},
journal= {arXiv preprint arXiv:1106.2507},
year = {2020}
}
备注
11 pages, 4 figures; as published in the conference proceedings for SPIE Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V (2010)