Linear track scanning imaging system and method

A linear track scanning imaging system, comprising:

• a ray generating unit comprising a plurality of ray sources, wherein the linear track scanning imaging system is configured for the plurality of ray sources to emit beams such that only one of the plurality of ray sources emits a beam at any one time;
• an actuating arrangement configured to cause an object under examination to perform a relative movement with respect to the linear track scanning system along a linear track, thereby leading the object under examination to pass through a scanning area of the linear track scanning imaging system;
• a data collecting unit configured to collect projection data of the object under examination obtained from the beams emitted by the ray sources;
• an imaging unit configured to construct a computed tomography (CT) image of the object under examination based on the collected projection data;
• and
• a display unit configured to display the constructed image;
• wherein the plurality of ray sources are located in a plane parallel to the linear track along which the object under examination moves.