Radiography Services

X-rays: X-rays are produced by an X-ray generator, which is a machine that accelerates electrons to high energies and then makes them collide with a metal target. The collision produces X-rays, which are emitted in all directions. Gamma rays: Gamma rays are emitted by radioactive materials, such as cobalt-60 and iridium-192.

These materials are sealed in a container and used as a radiation source. X-rays and gamma rays are both forms of electromagnetic radiation, but they differ in their energy. X-rays have a lower energy than gamma rays, which means that they can be more easily absorbed by matter.

This makes X-rays a better choice for NDT of thin materials, such as sheet metal. Gamma rays have a higher energy than X-rays, which means that they can penetrate thicker materials. This makes gamma rays a better choice for NDT of thick materials, such as castings and welds.

The choice of radiation source for NDT also depends on the specific application. For example, if the NDT is being performed on a radioactive material, then a gamma ray source would be the best choice. If the NDT is being performed on a human patient, then an X-ray source would be the best choice.

Radiography is a powerful tool for NDT, but it also can be very dangerous if not used correctly. When our technicians carry out Radiography, they wear the correct PPE, keep exposure time to a minimum, don’t come in to contact with the primary beam and use shielding methods.

All our testing is completed in the safest conditions possible adhering to HSE guidelines. Prior specific Risk Assessments will always be carried out before commencing any site Radiography by one of our Senior Radiographers who will be responsible for client liaison/ HSE liaison – this means a personal service can be guaranteed. Our Radiographers also have Confined Space Training and specific qualifications and safety passports.