CS-30回旋加速器制备<sup>111</sup>In

CS-30回旋加速器制备¹¹¹In

摘要: 在四川大学CS-30回旋加速器上通过核反应^NatCd（p，xn）¹¹¹In进行了制备放射性核素¹¹¹In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¹¹¹In，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。

Abstract: 111In was prepared on the CS-30 cyclotron in Sichuan University via nuclear reaction ^NatCd（p,xn）¹¹¹In with natural cadmium target by electro-deposition method. The procedures of dissolution and radiochemical separation of the irradiated cadmium target were investigated. The results indicate that the ¹¹¹In 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 ¹¹¹In produced by natural Cd is more than 99%. The total chemical impurity of Cu²⁺, Cd²⁺, and Zn²⁺ is less than 8.0 mg/L.