Object: Using computer to calculate average energy lost by photons at every points in each body, in order to determine the dose distribution of photon radiation in the water phantom.
目的:用电脑计算在每个物体中每点处点源释放出的原始光子和平均能量损失,以获得光子线在水模体中的剂量分布情况。
The depth in phantom or body may be comparable to the range of the electrons.
在模型或人体中的深度可以和电子的射程相比较。
At present, the way to evaluate the phantom is that acoustic parameters of tissue mimicking material are detected and judged to agree with acoustic parameters of body.
目前,评价仿组织超声体模的主要方法是通过测量制备体模的仿组织材料声学参数是否符合人体组织的声学参数范围。
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