The multiple energy extraction (MEE) delivery technique for synchrotron-based proton delivery systems reduces beam delivery time by decelerating the beam multiple times during one accelerator spill, but this might cause additional plan quality degradation due to intrafractional motion. We seek to determine whether MEE causes significantly different plan quality degradation compared to single energy extraction (SEE) for lung cancer treatments due to the interplay effect.

中文翻译：

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技术说明：基于同步加速器的质子输送系统的多种能量提取技术可能会加剧肺癌治疗中的运动相互作用

基于同步加速器的质子传递系统的多能量提取 (MEE) 传递技术通过在一次加速器溢出期间多次减速光束来减少光束传递时间，但这可能会由于分数内运动而导致额外的计划质量下降。我们试图确定由于相互作用效应，MEE 是否会导致肺癌治疗与单能量提取 (SEE) 相比显着不同的计划质量下降。