11 November 2014 Personnel screening with terahertz opto-mechanical scanning imaging
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Abstract
We presented a passive THz opto-mechnical scanning imaging method using a single detector and a trihedral scanning mirror. The system improved the imaging speed through employing two flapping mirrors. Also the trihedral scanning mirror and an ellipsoidal mirror were adopted. The parameters were set as follows: the best imaging distance was 2.2m with the image range of 1.6m(W)×1.6m(H), the imaging time was 2s, and the resolution was 3cm. We imaged human body with different objects concealed under their clothes, such as buckle, ceramic chip, etc.
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Lan-tao Guo, Xin Liu, Chao Deng, Yuan-meng Zhao, Cun-lin Zhang, "Personnel screening with terahertz opto-mechanical scanning imaging", Proc. SPIE 9275, Infrared, Millimeter-Wave, and Terahertz Technologies III, 927517 (11 November 2014); doi: 10.1117/12.2071775; https://doi.org/10.1117/12.2071775
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