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Proceedings Paper

A Fourier transform spectrometer for site testing at Dome A
Author(s): Xin-Xing Li; Scott Paine; Qi-Jun Yao; Sheng-Cai Shi; Hiroshi Matsuo; Ji Yang; Qi-Zhou Zhang
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Paper Abstract

Observations in tera-hertz astronomy can only be done at a site with good atmospheric transmission at millimeter and submillimeter wavelengths. With extremely dry weather and calm atmosphere resulted by high altitude and cold temperature, Dome A (or Dome Argus), Antarctica, is possibly the best site on this earth for THz astronomy. To evaluate the site condition there, we are constructing a Fourier Transform Spectrometer (FTS) based on Martin-Puplett interferometer to measure the atmospheric transmission in the frequency range of 0.75~15THz. The whole FTS system is designed for unattended and outdoor (temperatures even below -70 degrees Celsius) operation. Its total power consumption is estimated to be approximately 200W. This contribution will give a brief overview of this FTS development.

Paper Details

Date Published: 4 August 2009
PDF: 10 pages
Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 73851D (4 August 2009); doi: 10.1117/12.835103
Show Author Affiliations
Xin-Xing Li, Purple Mountain Observatory (China)
Graduate School of CAS (China)
Scott Paine, Smithsonian Astrophysical Observatory (United States)
Qi-Jun Yao, Purple Mountain Observatory (China)
Sheng-Cai Shi, Purple Mountain Observatory (China)
Hiroshi Matsuo, National Astronomical Observatory of Japan (Japan)
Ji Yang, Purple Mountain Observatory (China)
Qi-Zhou Zhang, Smithsonian Astrophysical Observatory (United States)


Published in SPIE Proceedings Vol. 7385:
International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications
X.-C. Zhang; James M. Ryan; Cun-lin Zhang; Chuan-xiang Tang, Editor(s)

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