论文标题
Simons天文台220和280 GHz焦点平面模块:设计和初始表征
The Simons Observatory 220 and 280 GHz Focal-Plane Module: Design and Initial Characterization
论文作者
论文摘要
Simons天文台(SO)将检测和绘制从Cerro Toco,智利,各个角度尺度的智利的温度和极化,为宇宙学和天体物理分析提供丰富的数据集。 SO焦平面将用紧凑的六边形包装铺设,称为通用焦距模块(UFMS),其中过渡边缘传感器(TES)探测器与100 MK微波炉型电子电子产品耦合。在49个计划的UFM中,将实现三种不同类型的二分性TES探测器阵列,其带为30/40、90/150和220/280 GHz。 90/150GHz和220/280 GHz阵列每个都包含1,764个TES,它们用两个910X多路复用器电路读出。这些模块包含一系列密集的路由硅芯片,这些芯片在受控的电磁环境中包装在一起,可稳健的热链接至100 mk。在概述了模块设计之后,我们报告了第一个220/280GHz UFM的早期结果,包括检测器产量,以及读取器噪声水平。
The Simons Observatory (SO) will detect and map the temperature and polarization of the millimeter-wavelength sky from Cerro Toco, Chile across a range of angular scales, providing rich data sets for cosmological and astrophysical analysis. The SO focal planes will be tiled with compact hexagonal packages, called Universal Focal-plane Modules (UFMs), in which the transition-edge sensor (TES) detectors are coupled to 100 mK microwave-multiplexing electronics. Three different types of dichroic TES detector arrays with bands centered at 30/40, 90/150, and 220/280 GHz will be implemented across the 49 planned UFMs. The 90/150GHz and 220/280 GHz arrays each contain 1,764 TESes, which are read out with two 910x multiplexer circuits. The modules contain a series of densely routed silicon chips, which are packaged together in a controlled electromagnetic environment with robust heat-sinking to 100 mK. Following an overview of the module design, we report on early results from the first 220/280GHz UFM, including detector yield, as well as readout and detector noise levels.