carriage position

English to Romanian Medical Medical (general) radiotherapy

The design of this collimator as described includes an interesting modification to reduce the overall size of this device in the direction of leaf travel. It was recognized early in the design and engineering phase of the XXXX collimator that the 60 cm width calculated above, for leaf travel alone and not considering other factors like the mounting of the motors that drive the leaves, is problematic. Based on this type of calculation, it was decided that the general bulk of the treatment head would be excessive if a leaf reach at isocenter of about 35 cm (20 cm to the center of a 40 cm wide field plus 15 cm across midline) was attempted. As an alternative, studies were conducted (see reference 4) to show that a different design that places leaves with a shorter reach on carriages on each side of the field could be used. The idea was that these *carriages* could be moved in and out of the field to extend leaf reach.

Este vorba oare de suportul mobil al lamelelor unui colimator?