【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。更多还原

【Abstract】 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.更多还原