A practical comparison of volumetric CT and projection-based 2D X-ray inspection for industrial review.
2D X-ray inspection
A 2D projection can provide a fast view of attenuation differences and is useful when the target can be interpreted from a suitable angle.
CT inspection
CT reconstructs information from multiple projections to support sectional or volumetric review. It can help when overlapping structures make a single projection difficult to interpret.
Choosing based on the inspection question
The choice depends on geometry, material, required resolution, throughput, reconstruction needs, and the amount of information required for the engineering decision.
Capability boundary
- CT is not automatically the best choice for every sample, and 2D imaging is not automatically sufficient. Overlap, density, motion, scan time, reconstruction quality, and acceptance criteria define the practical boundary.