11.1.
When objects to be radiographed cannot be physically moved into a shielded enclosure, the work should be carried out under ‘site radiography’ conditions. This method of radiography is very common, but it is potentially hazardous because of the absence of engineered safety measures.
11.2.
The location for site radiography work may be, for example, at the premises of the client (e.g. in a refinery, an offshore location or a construction workshop), in an urban area (e.g. at a gas pipeline or a building construction site) or in an open field (e.g. a pipeline through a rural or an uninhabited area).
11.3.
Site radiography work should be carried out only when it is not practicable to perform radiography in a shielded enclosure. This might be the case because the objects to be radiographed are permanently fixed in location or are too large or heavy to be moved. Where it is practicable to move workpieces, they should be radiographed in a shielded enclosure with all safety provisions as described in Section 10.
11.4.
Site radiography work can be performed with gamma radiography devices, X ray equipment or mobile accelerators.