Studies of systematic uncertainties for Simons Observatory: detector array effects

Studies of systematic uncertainties for Simons Observatory: detector array effects
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西蒙斯天文台系统不确定性研究:探测器阵列效应

DOI:
10.1117/12.2313414
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发表时间:
2018
期刊:
--
影响因子:
--
通讯作者:
Zhu N
Zhu N
中科院分区:
--
文献类型:
--
作者:
Zhu N

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在本程序中,我们介绍了与探测器系统及其与整个SO实验系统的相互作用相关的Simons天文台(SO)的仪器系统效应的研究。SO将测量宇宙微波背景(CMB)的温度和极化各向异性,在大范围的角尺度内,在六个波段,波段中心从27 GHz到270 GHz。我们探讨了由耦合光学、热计非线性、热计未校准增益变化和读出串扰引起的强度-偏振泄漏等影响。我们模拟了信号污染水平,讨论了拟议的缓解方案,并提出了仪器要求,以告知SO和未来CMB项目的设计。
In this proceeding, we present studies of instrumental systematic effects for the Simons Obsevatory (SO) that are associated with the detector system and its interaction with the full SO experimental systems. SO will measure the Cosmic Microwave Background (CMB) temperature and polarization anisotropies over a wide range of angular scales in six bands with bandcenters spanning from 27 GHz to 270 GHz. We explore effects including intensity-to-polarization leakage due to coupling optics, bolometer nonlinearity, uncalibrated gain variations of bolometers, and readout crosstalk. We model the level of signal contamination, discuss proposed mitigation schemes, and present instrument requirements to inform the design of SO and future CMB projects.
DOI: 10.3847/1538-4357/aa8e9f
发表时间: 2017-05
期刊: The Astrophysical Journal
影响因子: --
作者:
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