Advanced ACTPol TES Device Parameters and Noise Performance in Fielded Arrays
Advanced ACTPol TES Device Parameters and Noise Performance in Fielded Arrays
复制标题
现场阵列中的高级 ACTPol TES 器件参数和噪声性能
DOI：
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发表时间：
2018
影响因子：
2
通讯作者：
Edward J. Wollack
中科院分区：
文献类型：
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作者：
K. Crowley;J. Austermann;Steve K. Choi;S. Duff;P. Gallardo;S. Ho;J. Hubmayr;B. Koopman;F. Nati;M. Niemack;M. Salatino;S. Simon;S. Staggs;J. Stevens;J. Ullom;E. Vavagiakis;Edward J. Wollack
先进的ACTPol(AdvACT)升级到阿塔卡马宇宙学望远镜(ACT)，具有铝锰过渡边缘传感器(TE)阵列，优化了对宇宙微波背景(CMB)的地面观测。阵列测试表明，在光学负载下，高响应性探测器具有预期的带内噪声性能。我们报告了用TES子集上的阻抗数据测量的TES参数。然后，我们将建模的噪声谱密度与测量值进行比较。我们在100赫兹左右的频率上发现了多余的噪声，几乎超出了CMB测量的信号频带。此外，我们描述了两个新的AdvACT中频阵列在实验室和现场的全阵列噪声测量，这两个阵列对以90和150 GHz为中心的频段敏感，以及部署的高频阵列(150/230 GHz)的数据。
The Advanced ACTPol (AdvACT) upgrade to the Atacama Cosmology Telescope (ACT) features arrays of aluminum manganese transition-edge sensors (TESes) optimized for ground-based observations of the cosmic microwave background (CMB). Array testing shows highly responsive detectors with anticipated in-band noise performance under optical loading. We report on TES parameters measured with impedance data taken on a subset of TESes. We then compare modeled noise spectral densities to measurements. We find excess noise at frequencies around 100 Hz, nearly outside of the signal band of CMB measurements. In addition, we describe full-array noise measurements in the laboratory and in the field for two new AdvACT mid-frequency arrays, sensitive at bands centered on 90 and 150 GHz, and data for the high-frequency array (150/230 GHz) as deployed.
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