6MV.X線による上顎癌原体照射の基礎実験

概要

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In radiation therapy for the cancer of the maxillary sinus, it is important point clinically to reduce the dosis for the eye balls, even if the conformation technique were applied. In selective protection technique of the eye balls combined with the 6 MV X-ray conformation radiotherapy for maxillary sinus cancer, the effect of various sized absorber on dose distribution were studied. Cylinders of Tungsten alloy were used for absorber, and dose distribution were measured with film method. It was revealed that the larger the size of absorber, the greater the difference between interested target volume and high dose region. In regard to dose homogeneity of traget volume and to protection of eye balls, it became quite apparent that the absorber of 20mmφ to the healthy side, and 17.5mmφ to the tumor side were agreeable size.
公益社団法人日本放射線技術学会の論文
1974-11-30