论文标题
基于波动波参数放大器的卤代放大链
An Haloscope Amplification Chain based on a Travelling Wave Parametric Amplifier
论文作者
论文摘要
在本文中，我们将根据行动波参数放大器（TWPA）描述RF检测链的表征。检测链用于暗物质轴搜索，因此将其安装到高Q微波谐波腔中。系统噪声温度$ t _ {\ rm sys} =（3.3 \ pm 0.1 $）k以10.77 GHz的频率测量，使用新型方案允许测量$ t _ {\ rm sys} $，正好在空腔输出端口。
In this paper we will describe the characterisation of a rf detection chain based on a travelling wave parametric amplifier (TWPA). The detection chain is meant to be used for dark matter axion searches and thus it is mounted coupled to a high Q microwave resonant cavity. A system noise temperature $T_{\rm sys} = (3.3 \pm 0.1$) K has been measured at a frequency of 10.77 GHz, using a novel scheme allowing measurement of $T_{\rm sys} $ exactly at the cavity output port.
