Radixact Synchrony corrects for target motion during treatment by adjusting the jaw and MLC positions in real time. As the jaws move off axis, Synchrony attempts to adjust for a loss in output due to the un‐flattened 6 MV beam by increasing the jaw aperture width. The purpose of this work was to assess the impact of the variable‐width aperture on delivered dose using measurements and simulations.

中文翻译：

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可变宽度钳口运动对 Radixact Synchrony® 光束特性的影响

Radixact Synchrony 通过实时调整颌骨和 MLC 位置来校正治疗期间的目标运动。当钳口偏离轴心时，Synchrony 会尝试通过增加钳口孔径宽度来调整由于未展平的 6 MV 光束造成的输出损失。这项工作的目的是使用测量和模拟评估可变宽度孔径对输送剂量的影响。