Prime-Cam: a first-light instrument for the CCAT-prime telescope
Prime-Cam: a first-light instrument for the CCAT-prime telescope
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Prime-Cam：CCAT-prime 望远镜的第一光仪器
DOI：
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
N. Zhu
中科院分区：
文献类型：
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作者：
E. Vavagiakis;Z. Ahmed;A. Ali;K. Basu;N. Battaglia;F. Bertoldi;R. Bond;R. Bustos;S. Chapman;D. Chung;G. Coppi;N. Cothard;S. Dicker;C. Duell;S. Duff;J. Erler;M. Fich;N. Galitzki;P. Gallardo;S. Henderson;T. Herter;G. Hilton;J. Hubmayr;K. Irwin;B. Koopman;J. McMahon;N. Murray;M. Niemack;T. Nikola;M. Nolta;J. Orlowski;S. Parshley;D. Riechers;K. Rossi;D. Scott;C. Sierra;M. Silva;S. Simon;G. Stacey;J. Stevens;J. Ullom;M. Vissers;S. Walker;Edward J. Wollack;Z. Xu;N. Zhu
CCAT-PRIME将是一个6米口径的望远镜，工作波长从亚毫米到毫米，位于智利阿塔卡马沙漠的Cerro Chajnantor上，海拔5600米。其新颖的交叉德拉贡光学设计将提供高吞吐量、宽视场，能够照明比现有望远镜大得多的亚毫米和毫米探测器阵列。我们介绍了CCAT-PRIME的第一光仪器Prime-Cam的动机和设计。Prime-Cam将在一个直径1.8米的低温恒温器中容纳七个仪器模块，由稀释冰箱冷却。光学元件将由硅透镜组成，仪器模块可以针对特定的科学目标进行单独优化。当前的设计使用在190到450 GHz范围内工作的多色过渡边缘传感器(TES)测辐射热计，实现了宽带、双极化测量和窄带法布里-珀罗光谱成像。它还包括工作在860 GHz的宽带运动感应探测器(CHILD)。这一宽广的频率范围将使银河系前景得到极好的表征和去除，这将使亚毫米和毫米天空的精确测量成为可能。Prime-Cam将用于通过Sunyaev-Zeldovich效应约束宇宙学，绘制再电离时代[CII]158μm发射的强度图，测量宇宙微波背景极化和前景，并在广泛的红移范围内表征恒星形成历史。欲了解更多有关CCAT-PRIME的信息，请访问www.ccatservatory.org。
CCAT-prime will be a 6-meter aperture telescope operating from sub-mm to mm wavelengths, located at 5600 meters elevation on Cerro Chajnantor in the Atacama Desert in Chile. Its novel crossed-Dragone optical design will deliver a high throughput, wide field of view capable of illuminating much larger arrays of sub-mm and mm detectors than can existing telescopes. We present an overview of the motivation and design of Prime-Cam, a first-light instrument for CCAT-prime. Prime-Cam will house seven instrument modules in a 1.8 meter diameter cryostat, cooled by a dilution refrigerator. The optical elements will consist of silicon lenses, and the instrument modules can be individually optimized for particular science goals. The current design enables both broad- band, dual-polarization measurements and narrow-band, Fabry-Perot spectroscopic imaging using multichroic transition-edge sensor (TES) bolometers operating between 190 and 450 GHz. It also includes broadband kinetic induction detectors (KIDs) operating at 860 GHz. This wide range of frequencies will allow excellent characterization and removal of galactic foregrounds, which will enable precision measurements of the sub-mm and mm sky. Prime-Cam will be used to constrain cosmology via the Sunyaev-Zeldovich effects, map the intensity of [CII] 158 μm emission from the Epoch of Reionization, measure Cosmic Microwave Background polarization and foregrounds, and characterize the star formation history over a wide range of redshifts. More information about CCAT-prime can be found at www.ccatobservatory.org.
西蒙斯天文台大口径望远镜接收器设计概述
DOI：
10.1117/12.2312871
发表时间：
2018
期刊：
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影响因子：
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作者：
Thornton R
通讯作者：
Thornton R
DOI：
10.2172/1352047
发表时间：
2016-10
期刊：
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影响因子：
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作者：
K. Abazajian;Peter Adshead;Z. Ahmed;S. Allen;D. Alonso;K. Arnold;C. Baccigalupi;J. Bartlett;
通讯作者：
K. Abazajian;Peter Adshead;Z. Ahmed;S. Allen;D. Alonso;K. Arnold;C. Baccigalupi;J. Bartlett;