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3 May 2010 Analysis of background irradiation in thermal IR hyper-spectral imaging systems
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Our group designed a thermal IR hyper-spectral imaging system in this paper mounted in a vacuum encapsulated cavity with temperature controlling equipments. The spectral resolution is 80 nm; the spatial resolution is 1.0 mrad; the spectral channels are 32. By comparing and verifying the theoretical simulated calculation and experimental results for this system, we obtained the precise relationship between the temperature and background irradiation of optical and mechanical structures, and found the most significant components in the optic path for improving imaging quality that should be traded especially, also we had a conclusion that it should cool the imaging optics and structures to about 100K if we need utilize the full dynamic range and capture high quality of imagery.
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Weiming Xu, Liyin Yuan, Ying Lin, Zhiping He, Rong Shu, and Jianyu Wang "Analysis of background irradiation in thermal IR hyper-spectral imaging systems", Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 76602H (3 May 2010);

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