Complex sentence: A multileaf collimator (MLC) is used on linear accelerators to provide conformal shaping of radiotherapy treatment beams, specifically conformal radiotherapy and Intensity Modulated Radiation Therapy (IMRT) can be delivered using MLC's.
Split into simpler sentences: A multileaf collimator (MLC) is used on linear accelerators to provide conformal shaping of radiotherapy treatment beams. Specifically conformal radiotherapy and Intensity Modulated Radiation Therapy (IMRT) can be delivered using MLC's.