Patent ID: 8582720
Filing Date: 2013-11-12
Classification: G01N,G01V,G21K

Abstract:
1. An X-ray imaging apparatus for determining a surface profile of an object under inspection and positioned at a distance from said apparatus, comprising: a flying spot X-ray source for producing a flying spot scanning beam of X-rays directed toward said object; a transmission imaging system comprising a pulsed linear accelerator X-ray source; a detector assembly adapted to provide a signal representative of an intensity of X-rays backscattered from said object; processing circuitry adapted to determine a time difference between when the flying spot X-ray source is switched on and when the backscattered X-rays arrive at the detector assembly and adapted to output data representative of the surface profile of the object under inspection; and processing circuit adapted to operate the pulsed linear accelerator X-ray source only when said flying spot scanning beam is not interacting with said object.