论文标题
Simons天文台微波鱿鱼多路复用读数 - 低温RF放大器和同轴链设计
Simons Observatory Microwave SQUID Multiplexing Readout -- Cryogenic RF Amplifier and Coaxial Chain Design
论文作者
论文摘要
Simons天文台（SO）是即将进行极化敏感的宇宙微波背景（CMB）在Cerro Toco Plateau（智利）上的实验，与其他光学和红外调查（例如DESI，LSST，HSC，HSC）具有很大的重叠。为了使\ bigo（10,000）探测器的读数在SO的四个望远镜中的每个望远镜中，我们将采用微波鱿鱼多路复用技术。有了\ bigo {（1,000）}的目标多路复用因子，微波鱿鱼多路复用从未在SO所需的比例尺上部署。在这里，我们介绍了低温同轴电缆和RF组件链的设计，该链将室温读数电子设备与超导谐振器连接到与过渡边缘传感器验证仪在亚kelvin温度下运行的超导谐振器。我们描述了设计考虑因素，包括低温RF组件选择，系统线性，噪声和热功率耗散。
The Simons Observatory (SO) is an upcoming polarization-sensitive Cosmic Microwave Background (CMB) experiment on the Cerro Toco Plateau (Chile) with large overlap with other optical and infrared surveys (e.g., DESI, LSST, HSC). To enable the readout of \bigO(10,000) detectors in each of the four telescopes of SO, we will employ the microwave SQUID multiplexing technology. With a targeted multiplexing factor of \bigO{(1,000)}, microwave SQUID multiplexing has never been deployed on the scale needed for SO. Here we present the design of the cryogenic coaxial cable and RF component chain that connects room temperature readout electronics to superconducting resonators that are coupled to Transition Edge Sensor bolometers operating at sub-Kelvin temperatures. We describe design considerations including cryogenic RF component selection, system linearity, noise, and thermal power dissipation.
