There is a list of equipment below that will be found useful for quality control checks. Some of these are related to specific test methods. In this case a reference is given to the paragraph in which the test is described:
- ruler (this should be accurate to 0.5 mm);
- plumb-line;
- spirit level (sensitivity 0.2-3 mm/m) for horizontal and vertical use;
- carbon paper (Section 4.1);
- free-standing pointer, such as an engineer’s scribing block (Section 4.1);
- sheet of accurately ruled graph paper approximately 30 x 40 cm (Section 6.2);
- film phantom (Section 9.1);
- photographic film of width at least 25 cm (Section 9.1);
- simple film densitometer to measure optical density at a point;
- thermometer and barometer;
- stop-watch;
- thimble ionisation chamber and electrometer;
- daily output check dosemeter (Section 12.3);
- 40 cm focal length lens (Section 2.5);
- scanning densitometer;
- beam profile scanning equipment (Section 11.1);
- dose plotting water tank;
- weights for loading the couch.