Development of an illumination chamber for indoor millimeter-wave imaging

Abstract

Passive millimetre-wave imaging provides the capability to detect objects concealed beneath clothing. In the past, this has been accomplished successfully outdoors, using the cold sky illumination to provide the majority of the scene contrast. However, many applications, such as airport security scanning, require a technology that can operate in an indoor environment. This paper describes work done to develop a safe and effective illumination source for indoor millimetre-wave imaging. Results from a prototype indoor millimetre-wave security scanner are presented, clearly showing hidden weapons and other objects.