Radiography at CERN

What is industrial radiography? It is a non-destructive method with a wide variety of applications, such as inspecting the quality of a weld. It uses high-energy radioactive sources or an X-ray generator.

Is this inspection technique used at CERN?
Yes, it is widely used at CERN by the EN-MME Group, which outsources the work to one or more companies, depending on the workload.

Is it possible to carry out radiography anywhere at CERN?
Yes, it is possible to carry out radiography in any building/accelerator/experiment area at CERN (including in areas which are not normally subject to radiological hazards).

When is radiography carried out?
It normally takes place outside of working hours (7 p.m. to 6 a.m.).

How will I know if radiography is taking place in my building?
If this activity is planned in a CERN building, notices will be affixed to all of its main entrance doors at least 24 hours in advance.

What are the risks?
There is a risk of exposure to very high levels of radiation, depending on the configuration of the equipment, how near you are to it and how long you spend in the radiography area.

Safety warning:
NEVER CROSS markings indicating that radiography is in progress.

by HSE Unit