Inspection system and inspection method

An inspection system, comprising:

• at least one ray source configured to emit X-rays, wherein each ray source comprises a separate housing configured to define a vacuum space and comprises a plurality of target spots enclosed within the housing;
• a detector assembly configured to receive X-rays emitted from the at least one ray source and passing through an inspection region of the inspection system;
• and
• a conveying device configured to carry an object to be inspected,
• wherein the at least one ray source and the detector assembly are movable in a traveling direction relative to the conveying device, so that the object to be inspected enters the inspection region, and the at least one ray source is translatable among a plurality of scanning positions when viewed along a central axis of the inspection region, a translation distance of the at least one ray source between two adjacent scanning positions is greater than a spacing between adjacent target spots of each ray source, and the traveling direction is parallel to the central axis;
• and
• wherein the inspection system is configured such that:
• the at least one ray source and the detector assembly move in the traveling direction relative to the conveying device and the at least one ray source emits X-rays, when the at least one ray source is located at one of the plurality of scanning positions;
• and the at least one ray source translates to another one of the plurality of scanning positions, after the at least one ray source and the detector assembly move a predetermined distance in the traveling direction relative to the conveying device.