Metal detectors currently used for screening aircraft passengers could soon be supplanted by novel millimetre-wave cameras, able to detect even non-metallic concealed objects. The new system, named after a Brazilian bat, is based on technology developed for ESA spacecraft. Tadar is being demonstrated at this week’s Inter Airport Europe Exhibition in Munich.
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http://www.esa.int/esaCP/SEML1W5Y3EE_Benefits_0.html