QLX-2002前列腺增生光子治疗机的剂量分布研究

Investigation of the dose distributions for the QLX-2002 photon machine for the therapy of prostate accretion

目的:研究QLX-2002前列腺增生光子治疗机在体内的剂量分布,特别是在前列腺位置垂直射线方向的剂量分布。方法:用不同厚度的有机玻璃代替组织的相对厚度,用电离室和胶片法测量PDD、OAR和等剂量分布曲线。结论:治疗头的开口窗尺寸应缩小.

Object: Investigation of the dose distributions in patient body, particularly in the direction perpendicular to the photon beam in the prostate gland, for the QLX-2002 photon machine for the therapy of prostate accretion. Method: FDD. OAR and isu-dose curves are measured with ion chamber and film in tissue-equivelant lucite of various thicknesses.Conclusion:The therapy window of the machine should be opened smaller.