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24 February 2015 1.8-m solar telescope in China: Chinese Large Solar Telescope
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For better understanding and forecasting of solar activity, high resolution observations for the Sun are needed. Therefore, the Chinese Large Solar Telescope (CLST) with a 1.8-m aperture is being built. The CLST is a classic Gregorian configuration telescope with an open structure, alt-azimuth mount, retractable dome, and a large mechanical de-rotator. The optical system with an all reflective design has a field of view of larger than 3 arc-min. The 1.8-m primary mirror is a honeycomb sandwich fused silica lightweight mirror with an ultra lower expansion material and active cooling. The adaptive optics system will be developed to provide the capability for diffraction-limited observations at visible wavelengths. The CLST design and development phase began in 2011 and 2012, respectively. We plan for the CLST’s start of commission to be in 2017. A multiwavelength tomographic imaging system, ranging from visible to near-infrared, is considered as the first light scientific instrument. The main system configuration and the corresponding postfocal instruments are described. Furthermore, the latest progress and current status of the CLST are also reported.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE) 2329-4124/2015/$25.00 © 2015 SPIE
Changhui Rao, Naiting Gu, Lei Zhu, Jinlong Huang, Cheng Li, Yuntao Cheng, Yangyi Liu, Xuedong Cao, Ming Zhang, Lanqiang Zhang, Hong Liu, Yongjian Wan, Hao Xian, Wenli Ma, Hua Bao, Xiaojun Zhang, Chunlin Guan, Donghong Chen, and Mei Li "1.8-m solar telescope in China: Chinese Large Solar Telescope," Journal of Astronomical Telescopes, Instruments, and Systems 1(2), 024001 (24 February 2015).
Published: 24 February 2015


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