Advanced ACTPol 两千像素跃迁边缘传感器阵列的读出
天体物理仪器与方法
2017-01-18 v1 宇宙学与河外天体物理
摘要
Advanced ACTPol 是六米阿塔卡马宇宙学望远镜 (ACT) 的仪器升级，旨在以角分尺度角分辨率测量宇宙微波背景 (CMB) 温度与偏振。为实现其科学目标，Advanced ACTPol 利用了比以往任何 CMB 实验都更大的读出复用因子，以测量每个 150 mm 探测器晶片中约两千个跃迁边缘传感器 (TES) 测辐射热计。我们介绍了 Advanced ACTPol 具有 64 行复用因子的时分复用读出架构的实现与测试。这包括单个多色探测器像素与超导量子干涉器件 (SQUID) 复用芯片的测试，以及集成读出电子学的测试与优化。特别地，我们描述了新开发的自动化复用 SQUID 调谐程序，用于选择和优化读出每个 Advanced ACTPol 阵列所需的数千个 SQUID 参数。每个阵列中的多色探测器像素为每个偏振和两个频率中的每一个使用独立通道，因此每个像素必须读出四个 TES。所解决的挑战包括与 ACTPol 相比每个复用读出通道的探测器数量加倍，以及优化 Nyquist 电感以最小化探测器与 SQUID 的噪声混叠。
引用
@article{arxiv.1607.06064,
title = {Readout of two-kilopixel transition-edge sensor arrays for Advanced ACTPol},
author = {Shawn W. Henderson and Jason R. Stevens and Mandana Amiri and Jason Austermann and James A. Beall and Saptarshi Chaudhuri and Hsiao-Mei Cho and Steve K. Choi and Nicholas F. Cothard and Kevin T. Crowley and Shannon M. Duff and Colin P. Fitzgerald and Patricio A. Gallardo and Mark Halpern and Matthew Hasselfield and Gene Hilton and Shuay-Pwu Patty Ho and Johannes Hubmayr and Kent D. Irwin and Brian J. Koopman and Dale Li and Yaqiong Li and Jeff McMahon and Federico Nati and Michael D. Niemack and Carl D. Reintsema and Maria Salatino and Alessandro Schillaci and Benjamin L. Schmitt and Sara M. Simon and Suzanne T. Staggs and Eve M. Vavagiakis and Jonathan T. Ward},
journal= {arXiv preprint arXiv:1607.06064},
year = {2017}
}
备注
17 pages, 6 figures. To be published in Proc. SPIE. Presented at SPIE Astronomical Telescopes + Instrumentation Conference 9914: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, July 2016