Narrow Precision Drives for Adaptive Diaphragm Positioning

Multi-leaf collimators are used in radiotherapy to achieve the best possible distribution of the dose. This involves arranging individual leaves so that the healthy tissue has optimum protection from the radiation. The more narrow the individual leaves are, the more precise the contour of the diaphragm becomes.

Piezo-based linear motors are well-suited as drives for the leaves. They are fast, compact and generate the relatively high forces required.

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