Equipment required

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.