结果成功测量相关数据并绘制介入诊疗区域内常规穿刺平面正、侧位辐射剂量分布示意图。
Results We successfully measured doses of X_ray radiation in invasive diagnosis and treatment area, and depicted the distribution curve.
同时，研究了在加速器停机后真空室内部的剩余辐射剂量场分布及其随时间的衰减规律。
At the same time, the residual radiation field distribution in the vacuum tank and its decay with time were estimated after the machine is shut down.
新的更为复杂的放射治疗技术要求辐射剂量计能够准确的测量三维剂量分布，提供高的空间分辨率。
New, complex radiotherapy delivery system techniques require dosimeters that are able to measure three-dimensional dose distributions accurately and with good spatial resolution.
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