Quantitative quality control for mechanical isocenter in teletherapy

Teletherapy devices have a non point mechanical isocenter which can influence the quality of care and therefore, quality control protocols were established to evaluate this parameter. This work aims to create a method for measuring the mechanical isocenter to be made an assessment and validation of equipment. It used a mechanical ensemble, where the main component is a gauge, for measuring the size of a precision piece. The difference between the known and measured value is attributed to mechanical instability of the device in question. (author)