西蒙斯天文台大口径望远镜接收机
天体物理仪器与方法
2021-09-22 v1 宇宙学与河外天体物理
摘要
西蒙斯天文台(SO)大口径望远镜接收机(LATR)将与位于智利 Cerro Toco 海拔 5,200 m 处的大口径望远镜耦合。由此构成的仪器将以空前精度产生半天球的角分分辨率毫米波图。LATR 是迄今建造的最大低温毫米波相机,直径 2.4 m,长 2.6 m。它将 1200 kg 物质冷却至 4 K,200 kg 冷却至 100 mK,即辐射热探测器的工作温度,其频段中心分别约为 27、39、93、145、225 和 280 GHz。最终,LATR 将容纳 13 个直径 40 cm 的光学管,每个含三片探测器晶圆,总计 62,000 个探测器。LATR 设计必须同时维持系统的光学对准、控制杂散光、提供低温隔离、限制热梯度,并最小化系统从室温冷却至 100 mK 的时间。这些相互竞争因素间的相互作用带来了独特挑战。我们讨论了设计涉及的权衡研究、最终优化、建造以及系统的最终性能。
引用
@article{arxiv.2103.02747,
title = {The Simons Observatory Large Aperture Telescope Receiver},
author = {Ningfeng Zhu and Tanay Bhandarkar and Gabriele Coppi and Anna M. Kofman and John L. Orlowski-Scherer and Zhilei Xu and Shunsuke Adachi and Peter Ade and Simone Aiola and Jason Austermann and Andrew O. Bazarko and James A. Beall and Sanah Bhimani and J. Richard Bond and Grace E. Chesmore and Steve K. Choi and Jake Connors and Nicholas F. Cothard and Mark Devlin and Simon Dicker and Bradley Dober and Cody J. Duell and Shannon M. Duff and Rolando Dünner and Giulio Fabbian and Nicholas Galitzki and Patricio A. Gallardo and Joseph E. Golec and Saianeesh K. Haridas and Kathleen Harrington and Erin Healy and Shuay-Pwu Patty Ho and Zachary B. Huber and Johannes Hubmayr and Jeffrey Iuliano and Bradley R. Johnson and Brian Keatin and Kenji Kiuchi and Brian J. Koopman and Jack Lashner and Adrian T. Lee and Yaqiong Li and Michele Limon and Michael Link and Tammy J Lucas and Heather McCarrick and Jenna Moore and Federico Nati and Laura B. Newburgh and Michael D. Niemack and Elena Pierpaoli and Michael J. Randall and Karen Perez Sarmiento and Lauren J. Saunders and Joseph Seibert and Carlos Sierra and Rita Sonka and Jacob Spisak and Shreya Sutariya and Osamu Tajima and Grant P. Teply and Robert J. Thornton and Tran Tsan and Carole Tucker and Joel Ullom and Eve M. Vavagiakis and Michael R. Vissers and Samantha Walker and Benjamin Westbrook and Edward J. Wollack and Mario Zannoni},
journal= {arXiv preprint arXiv:2103.02747},
year = {2021}
}