New terahertz security body scanner

Terahertz radiation has great potential for security applications due to its penetrating ability combined with harmlessness for living organisms. Here we report about development of the terahertz security system for the remote detection of hidden objects. The system works in the reflection mode and includes
$\mathbf{32\times 32}$
pixel imaging camera, objective lens, and several (six or more) 100 GHz IMPATT diode sources.