Performance of the advanced ACTPol low frequency array
Performance of the advanced ACTPol low frequency array
复制标题
先进的ACTPol低频阵列的性能
DOI：
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复制
发表时间：
2018
期刊：
影响因子：
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通讯作者：
Edward J. Wollack
中科院分区：
文献类型：
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作者：
Yaqiong Li;J. Austermann;J. Beall;S. M. Bruno;Steve K. Choi;N. Cothard;K. Crowley;S. Duff;P. Gallardo;S. Henderson;S. Ho;J. Hubmayr;B. Koopman;J. McMahon;M. Niemack;M. Salatino;S. Simon;S. Staggs;J. Stevens;J. Ullom;J. Ward;Edward J. Wollack
先进阿塔卡马宇宙学望远镜偏振计（AdvACT）是阿塔卡马宇宙学望远镜的升级仪器，它使用过渡边缘传感器（TES）探测器阵列来测量多个频带中的宇宙微波背景（CMB）偏振各向异性。我们审查的集成和表征的最终偏振计阵列，这是低频（LF）阵列，由292 TES测辐射热计观察在两个频段为中心，在27 GHz和39 GHz。该阵列对来自银河系的同步辐射以及CMB敏感，并补充了在90，150和230 GHz下运行的AdvACT阵列，以提供强大的检测和去除前景污染。我们目前的LF阵列在实验室中测量的检测器参数，包括饱和功率，临界温度，热导率，时间常数和光学效率，以及它们在整个晶片的均匀性。
The Advanced Atacama Cosmology Telescope Polarimeter (AdvACT) is an upgraded instrument for the Atacama Cosmology Telescope, which uses transition-edge sensor (TES) detector arrays to measure cosmic microwave background (CMB) polarization anisotropies in multiple frequency bands. We review the integration and characterization of the final polarimeter array, which is the low frequency (LF) array, consisting of 292 TES bolometers observing in two bands centered at 27 GHz and 39 GHz. This array is sensitive to synchrotron radiation from our galaxy as well as to the CMB, and complements the AdvACT arrays operating at 90, 150 and 230 GHz to provide robust detection and removal of foreground contamination. We present detector parameters for the LF array measured in the lab, including saturation powers, critical temperatures, thermal conductivities, time constants and optical efficiencies, and their uniformity across the entire wafer.
阿塔卡马宇宙学望远镜巡天策略优化
DOI：
10.1117/12.2232824
发表时间：
2016
期刊：
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影响因子：
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作者：
De Bernardis - For The ACT Collaboration F
通讯作者：
De Bernardis - For The ACT Collaboration F