通过用不同程度散射近似下的模拟射野影像来反推射野注量分布，考察了散射因素对反推射野注量分布的影响。
By using these simulated portal images to reconstruct the incident fluence distribution of the radiation field, the influence of the scattering factor is investigated.
通过用不同程度散射近似下的模拟射野影像来反推射野注量分布，考察了散射因素对反推射野注量分布的影响。
By using these simulated portal images to reconstruct the incident fluence distribution of the radiation field, the influence of the scattering factor is investigated.
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