The weight and bending movement of traditional leaded curtains imparts a reactionary force to the small packets and packages travelling on a conveyor belt through the x-ray impeding their throughput. Currently the problem of mail impedance at x-ray systems is addressed either by manual intervention (i.e., physical pushing of objects through) or waiting until sufficient mail builds up to pass many packages/packets at once (thereby leading to stoppages to examine very convoluted images).¹