Radiography systems based on distributed ray source

A radiography system comprising:

• a ray source comprising a plurality of X-ray generators which are distributed on one or more planes intersected with a moving direction of an object being inspected;
• a detector module comprising a plurality of detection units and configured to receive X-rays transmitting through the object being inspected;
• a data collection circuit coupled to the detector module and configured to convert a signal generated by the detector module into detection data;
• a controller connected to the ray source, the detector module and the data collection circuit, and configured to control at least two X-ray generators of the plurality of X-ray generators in the ray source to generate X-rays alternately such that object is scanned by the generated X-rays as moving of the object, and control the detector module and the data collection circuit to respectively obtain detection data corresponding to the at least two X-ray generators;
• a data processing computer configured to create images of the object being inspected in view angles of the at least two X-ray generators based on the detection data;
• wherein the ray source implements pulse-type emitting so as to emit X-rays only within a sampling period of the detector module and stop emitting the X-rays outside the sampling period of the detector module;
• wherein the detector module detects rays from different X-ray generators in the ray source, and in each collection process, rays emitted from only one X-ray generator are collected by the detector module at a time;
• and
• wherein the radiography system further comprises an object border detection apparatus, the object border detection apparatus configured to detect an object border of the object before the object passes through a scan plane;
• wherein an X-ray generator is selected according to the detected object border such that the generated X-ray covers the object completely.