Industrial radiography

Industrial radiography is a method of non-destructive testing where many types of manufactured components can be examined to verify the internal structure and integrity of the specimen. Industrial Radiography can be performed utilizing either X-rays or gamma rays. Both are forms of electromagnetic radiation. The difference between various forms of electromagnetic radiation is the energy of the individual particles or photons.

History

Industrial radiography has grown out of engineering, and is a major element of nondestructive testing. It is a method of inspecting materials for hidden flaws by using the ability of short wavelength radiation (high energy photons) to penetrate various materials.

Safety

Safety is of paramount importance to the industrial radiographer. Some of the sources of radiation used in industrial radiography can cause serious injury or death in a short period of exposure. For this reason, industrial radiographers must be properly trained in radiation safety and certified by the relevant governmental or certifying bodies.

Applications

Industrial radiography is widely used in a variety of industries, including the petroleum industry, the aerospace industry, and the nuclear industry. It is used to inspect a variety of products and equipment, such as welds, castings, forgings, and fabrications, for internal defects or damage.

Techniques

There are two main techniques used in industrial radiography: direct radiography and computed radiography. Direct radiography involves the use of film or other detectors to capture the image, while computed radiography uses a digital detector system.

See also

• Radiography
• Nondestructive testing
• X-ray
• Gamma ray

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