The design of the Ali CMB Polarization Telescope receiver

Salatino, Maria, Austermann, Jason, Thompson, Keith L., Ade, Peter ORCID: https://orcid.org/0000-0002-5127-0401, Bai, Xiran, Beall, James, Becker, Dan, Cai, Yifu, Chang, Zhi, Chen, Ding, Connors, Jake, Chen, Pisin, Dober, Bradley, Delabrouille, Jacques, Duff, Shannon, Gao, Guanhua, Givhan, Richard, Ghosh, Shamik, Hilton, Gene, Hu, Bin, Hubmayr, Johannes, Karpel, Ethan, Kuo, Chao-Lin, Li, Hong, Li, Mingzhe, Li, Si-Yu, Li, Xufang, Link, Michael, Li, Yongping, Liu, Hao, Liu, Liyong, Liu, Yang, Lu, Fangjun, Lukas, Tammy, Lu, Xuefeng, Mates, John, Mathewson, Justin, Mauskopf, Philip, Meinke, Jeremy, Montana-Lopez, Jordi, Shi, Jingyan, Sinclair, Adrian, Stephenson, Ryan, Sun, Weishin, Tseng, Yu?Han, Tucker, Carole ORCID: https://orcid.org/0000-0002-1851-3918, Ullom, Joel, Vale, Leila, van Lanen, Jeff, Vissers, Michael, Walker, Samantha, Wang, Bo, Wang, Guofeng, Wang, Jiaxin, Weeks, Eric, Wu, Di, Wu, Yi-Han, Xia, Junqing, Xu, He, Yao, Ji, Yao, Yongqiang, Yoon, Ki Won, Yue, Bin, Zhai, Hua, Zhang, Aimei, Zhang, Laiyu, Zhang, Le, Zhang, Pengjie, Zhang, Tong, Zhang, Xinmin, Zhang, Yifei, Zhang, Yongjie, Zhao, Gong-Bo, Zhao, Wen, Zmuidzinas, Jonas and Gao, Jian-Rong 2021. The design of the Ali CMB Polarization Telescope receiver. Presented at: SPIE Astronomical Telescopes + Instrumentation 2020, Virtual, 14-18 December 2020. Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X. , vol.11453 SPIE, 114532A. 10.1117/12.2560709

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Abstract

AliCPT-1 is the first CMB degree scale polarimeter to be deployed to the Tibetan plateau at 5,250m asl. AliCPT-1 is a 95/150GHz 72cm aperture, two lens refracting telescope cooled down to 4K. Alumina lenses image the CMB on a 636mm wide focal plane. The modularized focal plane consists of dichroic polarization-sensitive Transition-Edge Sensors (TESes). Each module includes 1,704 optically active TESes fabricated on a 6in Silicon wafer. Each TES array is read out with a microwave multiplexing with a multiplexing factor up to 2,000. Such large factor has allowed to consider 10's of thousands of detectors in a practical way, enabling to design a receiver that can operate up to 19 TES arrays for a total of 32,300 TESes. AliCPT-1 leverages the technological advancements of AdvACT and BICEP-3. The cryostat receiver is currently under integration and testing. Here we present the AliCPT-1 receiver, underlying how the optimized design meets the experimental requirements.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	SPIE
Last Modified:	21 Apr 2023 14:00
URI:	https://orca.cardiff.ac.uk/id/eprint/158963

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