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18 August 2011 Research on 0.1THz alternating current radiometric security inspection imaging for antiterrorism application
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Abstract
For the purpose of security inspection, an alternating current (AC) radiometer is used in passive THz Wave (0.1THz) imaging for the first time in china. Giving a comparison of structure and spectrum characteristic between direct current (DC) radiometer and AC radiometer, we discussed the AC radiometer imaging mechanism and the noise image disposal method based on the medium filtering. Simulating the requirement of safety inspection in airports, ports etc, a 2-D imaging experiment of the person with canceled object has been did indoor, by THz Wave AC radiometer mechanical scanning. The results show that THz Wave AC radiometer possesses higher sensitivity and can be used to inspect the concealed metal objects hidden in the passenger body and their luggage.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guang-feng Zhang, Wen-jie Qin, and Guo-wei Lou "Research on 0.1THz alternating current radiometric security inspection imaging for antiterrorism application", Proc. SPIE 8194, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, 81940Z (18 August 2011); https://doi.org/10.1117/12.899604
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