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西蒙斯天文台:低频探测器的设计,优化和性能.
Aashrita Mangu1, Benjamin Westbrook1, Shawn Beckman1
1University of California, Berkeley, Berkeley, CA USA.
概括
西蒙斯天文台将使用新的博洛米特阵列来精确测量宇宙微波背景辐射 (CMB). 这些探测器将有助于描述银河系同步子发射,改善前景减去用于CMB数据分析.
科学领域:
- 宇宙学的宇宙学是什么?
- 天体物理学 天体物理学
- 探测器物理学的物理
背景情况:
- 西蒙斯天文台 (SO) 是智利的一个主要的宇宙微波背景 (CMB) 实验.
- 它旨在在六个光谱频段 (27-285 GHz) 进行精确的温度和偏振测量.
- 它使用三个小光圈望远镜 (SAT) 和一个大光圈望远镜 (LAT),拥有大约6万个探测器.
研究的目的:
- 为了展示低频 (LF) 镜片合的曲天线过渡边缘传感器 (TES) 波罗米特阵列的性能.
- 详细设计,优化和测试在27和39 GHz运行的像素.
- 要突出这些LF阵列在为CMB前景减去特征银河系同步子发射中的作用.
主要方法:
- 开发和测试二合体,镜片合的状天线TES波罗米特阵列.
- 专注于在27和39 GHz工作的探测器阵列.
- 对特定频谱带的像素性能进行表征.
主要成果:
- 该研究介绍了LF波罗米特阵列的性能.
- 讨论了TES像素的设计和优化的细节.
- 提供了检测器阵列的当前测试状态.
结论:
- LF焦平面阵列对于描述银河系同步子辐射至关重要.
- 这些测量对于CMB数据中准确的前景减去至关重要.
- 展示的探测器技术是西蒙斯天文台科学目标的关键.
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