示踪元素钐对磷酸盐玻璃微球性质的影响  

Effect of Tracer Element Sm on the Properites of Phosphate Glass Microspheres

作　　者：刘剑亚 钱达兴[2] 周萘[2] 

机构地区：[1]安庆市建筑工程学校,安徽安庆246003 [2]同济大学材料科学与工程学院,上海200092

出　　处：《安庆师范学院学报（自然科学版）》2003年第4期14-16,共3页Journal of Anqing Teachers College(Natural Science Edition)

摘　　要：引入少量的示踪物氧化钐,磷酸盐玻璃的工艺性能不会发生大的变化,制成玻璃微球的方法可以不变。这种微球经中子活化后,在发生β衰变的同时,还伴随γ衰变,放射出的低能氧化钐后,磷酸盐玻璃微球的化学稳定性得到了很好的改善,进一步提高了使用的安全性,这是一种多功能的内放射医疗玻璃微球。Introducing a small amount of Sm2O3 can hardly change technological properties of glass,and glass microspheres can be prepared by the same way as usual.When Sm-contained microspheres are bombed by thermal neutrons , β-decay and γ-decay happen emitto γ-rays with lower energy,which can be detected by Γ camera.By using this feature,the location and monitor of the microspheres in the human body may be realized in the clinie practice .Introducing a small amount of Sm2O3 improves significantly the chemical stability of glass microspheres,and enhances their safety in body .They are new kinds of radiltherapeutic glass microspheres, and enhancing their safety in body.

关 键 词：内放射医疗玻璃微球 磷酸盐玻璃 示踪标记 钐 工艺性能 示踪元素 癌症治疗 

分 类 号：R730.55[医药卫生—肿瘤] TQ171.717[医药卫生—临床医学]