| Citation: | ZHAO Hong-chao, ZHANG Xiao-qian, AN Qi-chang. Flatness detection method of splicing detector based on channel spectral dispersion[J]. Chinese Optics, 2025, 18(4): 889-898. doi: 10.37188/CO.EN-2024-0026
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For segmented detectors, surface flatness is critical as it directly influences both energy resolution and image clarity. Additionally, the limited adjustment range of the segmented detectors necessitates precise benchmark construction. This paper proposes an architecture for detecting detector flatness based on channel spectral dispersion. By measuring the dispersion fringes for coplanar adjustment, the final adjustment residual is improved to better than 300 nm. This result validates the feasibility of the proposed technology and provides significant technical support for the development of next-generation large-aperture sky survey equipment.
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