X-ray Safety Training

∀ Regulation 861:
Warning Indicators and Interlocks

In non-medical settings when workers are protected by a room or an enclosure surrounding the source, they must be further protected by use of indicators and safety interlocks. The design features of indicators and safety interlocks may require the following;

Redundant Design meaning it has two or more independent means of performing its function. For example: a warning light (such as an 'X-ray ON' illuminated sign) must have two bulbs wired in parallel so that if one bulb blows, the status of room is still shown by the other.

Failsafe Design meaning upon failure of some essential component or indicator, a safety mechanism will either;

Disable the production of x-rays, or
Stop emission of x-rays beyond the tube by use of protective shutters or shields,

The SmART+ must close a shutter or cease x-ray emission if its specimen door is open. The GE Revolution Frontier must inhibit or stop x-rays if the room door is opened or if the specimen compartment is removed from the isocentre. Lights visible to workers must show exposure status at all times. Whenever any of these safeties inhibit or stop exposure, exposure can only be re-started from the control console.