Advanced ACTPol 低温探测器阵列与读出
天体物理仪器与方法
2016-04-20 v1 宇宙学与河外天体物理
摘要
Advanced ACTPol 是 6 米口径阿塔卡马宇宙学望远镜（Atacama Cosmology Telescope, ACT）的偏振敏感升级项目，相较于先前的 ACTPol 接收机增加了新频段并提高了灵敏度。2016 年，Advanced ACTPol 将开始以五个频段（28–230 GHz）绘制约半天球的地图。其对原初与次级宇宙微波背景（CMB）各向异性的图——以强度与偏振在角分尺度分辨率下成像——将实现精确宇宙学约束，并支持广泛的交叉相关研究，以探测宇宙膨胀历史及引力坍缩导致的结构增长。为实现这些科学目标，Advanced ACTPol 接收机将对 ACTPol 接收机进行重大升级，包括四块新的多色低温、馈源喇叭耦合 AlMn 过渡边缘传感器（TES）偏振计阵列（制备于 150 mm 直径晶圆上）；一套连续旋转的超材料硅半波片系统；以及一种采用超导量子干涉器件（SQUIDs）和时分复用实现 64 行复用因子的新型复用读出架构。本文介绍 Advanced ACTPol 仪器的现状与科学目标，重点阐述 Advanced ACTPol 低温探测器阵列的设计与实现。
引用
@article{arxiv.1510.02809,
title = {Advanced ACTPol Cryogenic Detector Arrays and Readout},
author = {S. W. Henderson and R. Allison and J. Austermann and T. Baildon and N. Battaglia and J. A. Beall and D. Becker and F. De Bernardis and J. R. Bond and E. Calabrese and S. K. Choi and K. P. Coughlin and K. T. Crowley and R. Datta and M. J. Devlin and S. M. Duff and R. Dunner and J. Dunkley and A. van Engelen and P. A. Gallardo and E. Grace and M. Hasselfield and F. Hills and G. C. Hilton and A. D. Hincks and R. Hlozek and S. P. Ho and J. Hubmayr and K. Huffenberger and J. P. Hughes and K. D. Irwin and B. J. Koopman and A. B. Kosowsky and D. Li and J. McMahon and C. Munson and F. Nati and L. Newburgh and M. D. Niemack and P. Niraula and L. A. Page and C. G. Pappas and M. Salatino and A. Schillaci and B. L. Schmitt and N. Sehgal and B. D. Sherwin and J. L. Sievers and S. M. Simon and D. N. Spergel and S. T. Staggs and J. R. Stevens and R. Thornton and J. Van Lanen and E. M. Vavagiakis and J. T. Ward and E. J. Wollack},
journal= {arXiv preprint arXiv:1510.02809},
year = {2016}
}
备注
9 pages, 3 figures, conference proceedings submitted to Journal of Low Temperature Physics