Tetsuya Ito, Y. Fujii, M. Inata, T. Kamazaki, S. Sakamoto, S. Asayama
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引用次数: 0

摘要

2019年10月,一个新的790 - 940 GHz外差接收器,ASTE波段10,安装在智利ALMA站点附近的10米亚毫米望远镜ASTE(阿塔卡马亚毫米望远镜实验)上。ALMA Band 10原型接收机升级为采用高jc结的SIS混频器。实验室测得的接收机噪声温度(TDSB)在175 ~ 344 K之间。在朝向天顶方向的ASTE上获得的系统噪声温度为2400 K (PWV <1.0 mm)。在0.05秒< T <100秒的时间尺度上,其Allan方差均小于2.0 × 10-6。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Upgrade of an ALMA Band 10 prototype receiver for ASTE radio telescope
A new 790 – 940 GHz heterodyne receiver, ASTE Band 10, was installed in October 2019 on ASTE (Atacama Submillimeter Telescope Experiment), a 10 m submillimeter telescope near of the ALMA site in Chile. An ALMA Band 10 prototype receiver was upgraded with SIS mixers employing high-Jc junctions. The receiver noise temperature (TDSB) measured in the laboratory is between 175 K and 344 K. The achieved system noise temperature on ASTE toward the zenith was 2400 K (PWV <1.0 mm). Their Allan variances were less than 2.0 x 10-6 for timescales in the range of 0.05 sec < T <100 sec.
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