Abstract: A monitoring installation for containers and trucks is provided making detection of large items, particularly trucks, at minimal expense possible. An X-ray monitoring installation having low X-ray energy, permits detection of stolen passenger cars, is arranged on a monitoring path.

Abstract: A method and apparatus is provided for identifying crystalline and polycrystalline material in an object placed in an examination region. X-rays having a polychromatic energy distribution are passed through a diaphragm to create a central x-ray beam in a fan plane that is projected into the examination region for irradiating a cross section of the object. The x-rays are diffracted by individual subregions of the object along the cross section in dependence of the presence of crystalline and/or polycrystalline material in the individual subregions. Collimators with collimating windows are arranged beyond the examination region with respect to the diaphragm, each collimating window covering a fixed, predetermined subregion of the examination region and extracting at least one diffracted plane fan beam from the respective individual subregion of the object.

Abstract: An X-ray examining system includes a mobile vehicle; and an X-ray examining apparatus for ascertaining contents of an object. The examining apparatus includes a supporting structure mounted on the mobile vehicle; and X-ray source for generating a fan-shaped X-ray and being carried by the vehicle; and an X-ray detector mounted on the supporting structure. The X-ray examining system is adapted to travel along the object to be examined while irradiating the object and detecting the X-rays after passage thereof through the object.

Abstract: A simplified and improved object testing system which, according to the present invention, includes a first and a second imaging system for generating a radiograph of the object as a visible image on a monitor, and a common operating unit controlling the first and second imaging system.