AI 中文总结
该研究为FYST的Prime-Cam开发410 GHz相机模块，设计约6700个喇叭耦合TiN MKID阵列，测试相关器件性能并规划高效读出方案，以优化亚毫米波观测性能。
AI 中文摘要
Prime-Cam是由阿塔卡马查南托天文台望远镜（CCAT）合作组开发的弗雷德·杨亚毫米波望远镜（FYST）的首批主光仪器，将容纳7个模块。本文介绍了其中非中心的410 GHz成像仪/偏振仪。该410 GHz仪器是CCAT的一个相机模块，由加拿大创新基金会资助，由达尔豪斯大学、不列颠哥伦比亚大学（UBC）、加拿大国家研究委员会（NRC）赫兹伯格分部和杜克大学合作开发。由于410 GHz窗口的大气负载显著高于350 GHz（但远低于850 GHz），我们评估了4种具有不同电感体积的MKID测试器件在410 GHz下的性能。我们提出了一个约6700个喇叭耦合TiN MKID阵列的设计，该阵列针对410 GHz使用进行了优化，计划在三个阵列上配置约20000个MKID，以探索测绘速度与探测器数量之间的平衡。我们对这4种MKID器件进行了光学测试，并评估了在查南托山顶410 GHz大气窗口下的最优Qi/Qc值和响应度。这些探测器将按频率设计，以通过第二代二倍频程读出（基于Xilinx RFSoC板）进行高效读出，每块板可支持超过4000个探测器。
英文摘要
Prime-Cam, the primary first-light instrument for the Fred Young Submillimeter Telescope (FYST) developed by the Cerro Chajnantor Atacama Telescope (CCAT) Collaboration, will accommodate seven modules. Here we describe the off-central 410 GHz imager/polarimeter. The 410 GHz instrument is a camera module for CCAT funded by the Canadian Foundation for Innovation, being developed as a collaboration between Dalhousie University, University of British Columbia (UBC), National Research Council (NRC) - Herzberg, and Duke University. With atmospheric loading in the 410 GHz window being significantly higher than at 350 GHz (but substantially lower than 850 GHz), we assess four MKID test devices with varying inductor volume for performance at 410 GHz. We propose a design for an array of ~6,700 horn-coupled TiN MKIDs optimized for use at 410 GHz, with a planned ~20,000 MKIDs over three arrays, exploring mapping speed versus detector number. We test the four MKID devices optically and assess optimal Qi/Qc and responsivity for the 410 GHz atmospheric window atop Cerro Chajnantor. The detectors will be designed in frequency to be efficiently readout with a second generation, two octave readout (based on the Xilinx RFSoC board), with over 4000 detectors per board.
Comments13 pages, SPIE 2026 Copenhagen
