← Glossary

Radiation Absorption Coefficient

The radiation absorption rate indicates how strongly a material absorbs gamma or X-rays. The higher the value, the more radiation is absorbed and the less passes through the material.

Physico-chemical mechanism of action

The radiation absorption coefficient (RAC) of a material is a measure of the probability that a radiation particle is absorbed when passing through the material. This process depends on the type of material and its thickness. Metals with many free electrons, such as lead or titanium, have a high RAC and are therefore well suited as radiation protection.

Metallurgical relevance & risks in welding

A high radiation absorption coefficient can lead to safety issues in the workshop. For example, gamma rays released during welding of certain materials (such as titanium or lead) can be dangerous and expose personnel. It is therefore important to take appropriate protective measures to minimize radiation exposure.

Workshop practice & instructions

To ensure that the radiation absorption coefficient in the workshop remains under control, the following measures should be taken:

• Wear protective clothing and a safety helmet with integrated X-ray shielding.

• Always keep at least 1 meters away from the work area when working with highly radiating materials.

• Make sure all radiation sources are properly shielded and regularly checked.

MetallurgieSchweißtechnik

AI Transparency (EU AI Act): Created on the basis of our own many years of practical experience in welding technology, with the help of AI, and reviewed editorially.

© 2026 Welder-World. All content is for training and continuing education and does not replace a certified welding procedure specification.