Screening people for illicit substances: a survey of current portal technology

摘要: The need to implement more effective, cost efficient, non-intrusive ways of screening people for concealed drugs, explosives and weapons is a major security initiative the U.S. elsewhere. A new generation portals suitable checkpoints under development. These will be able find contraband with high probabilities detection, low false-alarm rates. Some image body using either dose X-rays or millimeter wave interrogation, analyze radiation back-scattered from body, providing images objects. Other operate essentially as anomaly detectors, finding objects on human body. series also development that can harvest vapors particles substances. issues surrounding portal include perceived safety issues, privacy operational such ease operation, non-invasiveness, interpretation. It believed technology mature, fall sufficiently make widespread deployment at reality within next decade.