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首页> 外文会议>21st International Symposium on Space Terahertz Technology 2010 >Performance of a Microstrip-coupled TES Imaging Module for CMB Polarimetry
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Performance of a Microstrip-coupled TES Imaging Module for CMB Polarimetry

机译：用于CMB极化的微带耦合TES成像模块的性能

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摘要

We have developed a 16-element, 97GHz, low- noise Transition Edge Sensor (TES) module that can be packed easily into large-format polarimetric imaging arrays. The technology was developed originally for the low- frequency instrument of the CLOVER experiment, which was aimed at searching for the signature of primordial gravitational waves in the polarisation state of the Cosmic Microwave Background Radiation. Each module contains 16 slotline and microstrip-coupled TES bolometers, allowing eight polarimetric pixels with external waveguide OMTs, along with time-domain multiplexed SQUID readout Here we describe the design of the modules, and explain how they were realised in practice, detailing some of the technology developed along the way. Performance was measured by following two parallel paths: (i) detailed characterisation of individual detectors using an exceedingly well understood, fully modelled, analogue SQUID readout system, and (ii) simultaneous measurements of the entire module using CLOVER'S multichannel readout electronics. We describe the results of measurements on one of the modules, with an emphasis on uniformity of performance, and we assess the effect of non-uniformity on the operation of a complete array. Although the technology was developed in the context of CLOVER, the work has consequences for many instruments including future space telescopes such as BPol.
机译：我们开发了16元素，97GHz，低噪声过渡边缘传感器（TES）模块，该模块可以轻松包装到大幅面偏振成像阵列中。该技术最初是为CLOVER实验的低频仪器开发的，旨在寻找宇宙微波背景辐射极化状态下的原始引力波的特征。每个模块包含16个缝线和微带耦合TES辐射热计，允许8个带有外部波导OMT的极化像素，以及时域多路复用SQUID读数。在这里，我们描述模块的设计，并解释它们如何在实践中实现，并详细介绍其中的一些技术一直在发展。通过以下两个平行路径来测量性能：（i）使用一个非常了解的，完全建模的模拟SQUID读数系统对各个检测器进行详细表征，以及（ii）使用CLOVER的多通道读数电子设备同时测量整个模块。我们描述了其中一个模块的测量结果，重点是性能的一致性，并评估了不均匀性对整个阵列操作的影响。尽管该技术是在CLOVER的背景下开发的，但这项工作对许多仪器都有影响，包括将来的BPol等太空望远镜。

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