In this work, the performance of MAGIC polymer gel in measuring dosimetric parameters beyond lung heterogeneity in small fields was investigated. All data were obtained using MAGIC, EBT2, and MC in four small field sizes. The maximum local differences between MAGIC and MC were less than 5.1, 3.9, 3.1, and 2.6% for PDD values behind lung heterogeneity at 5, 10, 20, and 30 mm field sizes, respectively. The findings showed that MAGIC is a suitable tool for dosimetry behind low-density heterogeneity.

中文翻译：

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使用MAGIC聚合物凝胶，Gafchromic膜和Monte Carlo模拟评估小光子场中肺异质性对剂量参数的影响。

在这项工作中，研究了MAGIC聚合物凝胶在小范围内测量超出肺异质性的剂量参数的性能。所有数据都是使用MAGIC，EBT2和MC在四个小场中获得的。对于在5 mm，10 mm，20 mm和30 mm视野大小下肺异质性背后的PDD值，MAGIC和MC之间的最大局部差异分别小于5.1、3.9、3.1和2.6％。研究结果表明，MAGIC是用于低密度异质性背后剂量学的合适工具。