Objective To measure and evaluate the distribution feature of radiationdose at the conventional puncture plane in invasive diagnosis and treatment area, and depict the corresponding isodose curve.
目的测量和评价介入诊疗区域内常规穿刺平面辐射剂量的分布特点，绘制相应的等剂量曲线示意图。
2
Object: Using computer to calculate average energy lost by photons at every points in each body, in order to determine the dosedistribution of photon radiation in the water phantom.