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Research

Sep 23, 2009

Custom QA for tomotherapy

Tomotherapy is a unique intensity-modulated radiotherapy (IMRT) delivery scheme that comes with a similarly distinct set of quality assurance (QA) requirements. During the helical delivery, the couch travels at a constant velocity through a continuously rotating gantry, while the multileaf collimator (MLC) leaves open and close on a subsecond timescale. The QA process, therefore, must ensure synchronicity between the couch, gantry and MLC, as well as check their mechanical precision.

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