multileaf collimator

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So called because it is made up of individual "leaves" of a chemical element, usually tungsten, that can move independently in and out of the path of a particle beam in order to block it.


multileaf collimator (plural multileaf collimators)

  1. (medicine) A collimator used in a linear accelerator to provide conformal shaping of beams for radiotherapy. Abbreviation: MLC.

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