This study will review previous studies and current processes used by DHS, and equipment manufacturers to estimate radiation exposures resulting from backscatter x-ray advanced imaging technology (AIT ...

Cover Image: A common scene at a fictional airport employing passenger screening using a backscatter X-ray machine. Artist: Erik Svedberg. Image created by ray tracing, where computational rays of ...

The National Research Council (NRC) says use of millimeter-wavelength "backscatter" X-ray technology for security screening is not ready for prime time in the U.S. The technology could replace metal ...