Radiographic testing using gamma radiation sources
Gamma-ray radiographic testing uses radioactive isotopes to penetrate thick-walled metal parts. This enables mobile inspections without external power supply.
Physical-Chemical Mechanism of Action
Gamma rays are high-energy electromagnetic waves emitted by radioactive isotopes such as Cobalt-60 or Iridium-192. These rays can penetrate metals and analyze their density and structure.
Metallurgical Relevance & Welding Risks
Radiographic testing is especially useful for checking weld quality in thick-walled components. It can reveal cracks, deformations, and material defects without destroying the metal part. However, there are risks: gamma rays are highly radioactive and can be harmful to health if not handled correctly. It's important to follow safety measures and minimize radiation exposure.
Workshop Practice & Procedures
For gamma radiographic testing, you need special equipment and gear. The test should be carried out by qualified technicians who follow safety guidelines. It's important to protect the metal part and manage the radiation source safely. Test duration varies depending on part size and density, but typically takes a few minutes.