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Research

Jul 21, 2008

Layered leaves improve beam shaping

Multileaf collimators (MLCs) have emerged as an efficient way to shape 3D treatment fields in radiotherapy. However, the finite size of individual leaves can cause a stepped effect at field margins. Radiation leakage through leaf ends is also a concern, particularly during intensity-modulated radiotherapy (IMRT). An innovative dual-layer leaf arrangement could be the answer.

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