Inspection system and method

An inspection system for an aviation pallet cargo, comprising:

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