An Optical System for Body Imaging from a Distance Using Near-TeraHertz Frequencies
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- Duncan, W.D., Schwall, R.E., Irwin, K.D. et al. J Low Temp Phys (2008) 151: 777. doi:10.1007/s10909-008-9746-1
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We present the outline of the optical design of a TeraHertz (THz) imager for the detection of shrapnel-loaded improvised explosive devices (IED) devices at “stand-off” distances of 14–26 meters. The system will use 4 antenna-coupled TES detector arrays of 16 by 16 pixels cooled in a cryogen-free system with microwave readout to see beneath clothing at non-lethal detonation distances. A spatial resolution of ∼10 mm and close to video frame rates is anticipated.