CS-30回旋加速器制备111 In

摘要

1 1 1 In was prepared on the CS-30 cyclotron in Sichuan University via nuclear reac-tion Nat Cd(p,xn)1 1 1 In with natural cadmium target by electro-deposition method.The proce-dures of dissolution and radiochemical separation of the irradiated cadmium target were inves-tigated.The results indicate that the 1 1 1 In of 25-28 MBq/(μA·h)can be obtained using the proton of 26 MeV bombarded on the natural cadmium target,with radiochemical separation of Cu2 + ,Cd2 + ,Zn2 + ,and In by adopted CL-P204 resin.The radionuclide purity of 1 1 1 In produced by natural Cd is more than 99%.The total chemical impurity of Cu2 + ,Cd2 + ,and Zn2 + is less than 8.0 mg/L.%在四川大学 CS-30回旋加速器上通过核反应Nat Cd(p,xn)111 In 进行了制备放射性核素111 In 的研究。实验选用高纯度的天然镉作为靶材料,并采用电沉积法制备靶件,研究了辐照靶件的溶解以及放射化学分离方法。结果表明,采用26 MeV 的质子轰击天然靶件,并采用 CL-P204树脂将 In 与 Cu2+、Cd2+、Zn2+等杂质进行分离,可以得到产额(EOB 48 h,即轰击结束48 h 后)约为25~28 MBq/(μA·h)的111 In,其放射性核素纯度大于99%,Cu2+和 Cd2+等化学杂质总质量浓度小于8.0 mg/L。