X-ray device for checking the contents of closed cargo carriers

A device for checking the contents of closed cargo carriers using x-rays comprising:

• two steerable single track carriages disposed parallel to each other;
• a plurality of vertical columns having a bottom end and a top end wherein said bottom end is supported by said carriages;
• a yoke having a right end and a left end connected to said top end of each vertical column so as to space apart said carriages, said yoke being vertically movable on said columns;
• a first series of supporting elements connected to said right end and said left end of said yoke;
• a cross beam having a first end and a second end disposed on said yoke and spanning between said carriages;
• a first and a second support respectively connected to said first end and said second end on said cross beam;
• an x-ray radiation source disposed on one side of said cross beam and connected to said first support;
• and
• a receiving screen located on the opposite side of said cross beam so that when said device travels along the cargo carriers, it x-rays the contents of these carriers.