利用高能质子治疗癌症 ,有着比常规的γ射线和X射线治疗定位更精确、正常组织受损更小、治疗适应症更广、治疗效果好、并发症少等优点.美国、日本等发达国家已建立了医院专用的质子治疗装置 ,目前已有十多个国家开展了质子治疗癌症的研究 ,质子治疗已成为今后放射治疗的重要发展方向.“,”High-energy proton for treating cancer has such advantages as more accuray than γ ray and X ray, less injury to normal tissues, wider adaptations, better results and less complications etc. Installation of proton therapy for hospital has been set up in the U.S.A, Japan and other developed countries. So far,researches on treatment of cancer by proton therapy have been done in more than ten countries. Proton therapy has become major trend for future radioactive therapy.