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对乳腺癌术后的病人，采用电子束旋转照射，较多野或切线野照射具有剂量均匀、无冷、热点及深部正常组织剂量低等优点［１］。但其剂量测定有其特殊性，须首先测出旋转常数ＲＣ。现将本院开展的电子束旋转照射剂量测定方法介绍如下。一、材料和方法１－测量体模的制作：用密度?
For patients undergoing breast cancer surgery, the use of electron beam rotation, more wild or tangential field irradiation has the advantages of uniform dose, no cold, hot spots and low doses of deep normal tissue [1]. However, its dosimetry has its specificity. The rotation constant RC must be measured first. The electron beam rotary irradiation dose measurement method carried out in this hospital is now described as follows. I. Materials and Methods 1 - Making Measurement Phantoms: Using Density?