← Glossary

Image Quality Indicator Value

The image quality number indicates how accurately a radiographic test can detect internal defects in a workpiece. A higher value means better resolution and sensitivity.

Physical-Chemical Mechanism

The image quality number (IQN) is a measure of detail detectability in X-ray images. It depends on radiation energy, material, and detector resolution.

Metallurgical Relevance & Welding Risks

A high image quality number is important for detecting fine defects like cracks or pores. With too low IQN, significant flaws can be missed, leading to further processing.

Workshop Practice & Action Guidelines

Use a detector with an image quality number of at least 100 lp/mm for precise radiographic testing. Ensure that radiation energy and distance to the workpiece are correctly set.

MetallurgieSchweißtechnik

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