蜘蛛280 GHz接收器的设计和飞行前性能

论文标题

蜘蛛280 GHz接收器的设计和飞行前性能

Design and pre-flight performance of SPIDER 280 GHz receivers

论文作者

Shaw, E. C., Ade, P. A. R., Akers, S., Amiri, M., Austermann, J., Beall, J., Becker, D. T., Benton, S. J., Bergman, A. S., Bock, J. J., Bond, J. R., Bryan, S. A., Chiang, H. C., Contaldi, C. R., Domagalski, R. S., Doré, O., Duff, S. M., Duivenvoorden, A. J., Eriksen, H. K., Farhang, M., Filippini, J. P., Fissel, L. M., Fraisse, A. A., Freese, K., Galloway, M., Gambrel, A. E., Gandilo, N. N., Ganga, K., Grigorian, A., Gualtieri, R., Gudmundsson, J. E., Halpern, M., Hartley, J., Hasselfield, M., Hilton, G., Holmes, W., Hristov, V. V., Huang, Z., Hubmayr, J., Irwin, K. D., Jones, W. C., Kahn, A., Kuo, C. L., Kermish, Z. D., Lennox, A., Leung, J. S. -Y., Li, S., Mason, P. V., Megerian, K., Mocanu, L. M., Moncelsi, L., Morford, T. A., Nagy, J. M., Nie, R., Netterfield, C. B., Nolta, M., Osherson, B., Padilla, I. L., Rahlin, A. S., Redmond, S., Reintsema, C., Romualdez, L. J., Ruhl, J. E., Runyan, M. C., Shariff, J. A., Shiu, C., Soler, J. D., Song, X., Thommesen, H., Trangsrud, A., Tucker, C., Tucker, R. S., Turner, A. D., Ullom, J., van der List, J. F., Van Lanen, J., Vissers, M. R., Weber, A. C., Wen, S., Wehus, I. K., Wiebe, D. V., Young, E. Y.

论文摘要

在这项工作中，我们描述了对蜘蛛气球传播的望远镜的升级，以准备第二次飞行，目前计划于2021年12月。蜘蛛仪器被优化，以在宇宙微波背景中以程度角度尺度搜索原始的B模式极化签名。在2015年的第一次飞行中，蜘蛛将约10％的天空绘制为95和150 GHz。第二次南极航班的有效载荷将结合三个新的280 GHz接收器，以及三个翻新的95和150 GHz接收器，从蜘蛛的第一次飞行中进行了翻新。在这项工作中，我们讨论了这些新接收器的设计和表征，这些新接收器采用了1500多个FeedHorn耦合的过渡边缘传感器。我们描述了检测器特性的飞行前实验室测量以及完整的接收器的光学性能。这些接收器将以280 GHz的形式绘制天空的广泛区域，从而提供有关极化银尘发射的新信息，这将有助于将其与宇宙学信号分开。

In this work we describe upgrades to the Spider balloon-borne telescope in preparation for its second flight, currently planned for December 2021. The Spider instrument is optimized to search for a primordial B-mode polarization signature in the cosmic microwave background at degree angular scales. During its first flight in 2015, Spider mapped ~10% of the sky at 95 and 150 GHz. The payload for the second Antarctic flight will incorporate three new 280 GHz receivers alongside three refurbished 95- and 150 GHz receivers from Spider's first flight. In this work we discuss the design and characterization of these new receivers, which employ over 1500 feedhorn-coupled transition-edge sensors. We describe pre-flight laboratory measurements of detector properties, and the optical performance of completed receivers. These receivers will map a wide area of the sky at 280 GHz, providing new information on polarized Galactic dust emission that will help to separate it from the cosmological signal.

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