Dome A in Antarctica, located at an altitude of 4093 m and with very low temperature in winter down to - 83∘C, is an exceptionally dry site. Measurements of the atmospheric transmission in the range of 0.75–15 THz by a Far-infrared/THz Fourier transform spectrometer (FTS) strongly suggest that Dome A is a unique site for ground-based THz observations, especially for the 200- and 350-micron windows. A 5-m THz telescope (DATE5) is therefore proposed for Chinese Antarctic Kunlun Observatory. We are currently developing a THz superconducting imaging array (TeSIA) for the DATE5. The TeSIA will be working at the 350-μ m window, with a pixel number of 32 × 32 and a sensitivity (NEP) of ∼ 10- 16 W/Hz0.5. Ti transition-edge sensors with time-domain multiplexing and TiN microwave kinetic inductance detectors with frequency-domain multiplexing are both developed for the TeSIA. In this paper, detailed system designs and some measurement results will be presented.
CITATION STYLE
Shi, S. C., Zhang, W., Li, J., Miao, W., Lin, Z. H., Lou, Z., & Yao, Q. J. (2016). A THz Superconducting Imaging Array Developed for the DATE5 Telescope. Journal of Low Temperature Physics, 184(3–4), 754–758. https://doi.org/10.1007/s10909-015-1355-1
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