The Solar Upper Transition Region Imager (SUTRI) focuses on the solar transition region to achieve dynamic imaging observation of the high transition region. In this paper, we report the optical system design, mechanical design, ultrasmooth mirror manufacture and measurement, EUV multilayer film coating, prelaunch installation and calibration for SUTRI mission at IPOE, Tongji University. Finally, the SUTRI carried by the SATech-01 satellite was successfully set to launch. All functions of this telescope were normal, and the observation results obtained in orbit were consistent with the design.
A table-top soft x-ray polarimetry setup has been developed at the Institute of Precision Optical Engineering for characterizing the polarization properties of mirrors designed for the lightweight asymmetry and magnetism probe project. Based on a Co/C multilayer polarizer mirror, linearly polarized soft x-rays were generated at a wavelength of 4.48 nm, which could be rotated around the beam-propagation direction by using a differentially pumped rotary feedthrough. The setup design and the alignment method are described in detail. The capabilities of this spectrometer were demonstrated through a polarization test on a twin Co/C multilayer polarizer sample, and the results agree well with the expected sine wave.
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