A method for preparing ¹²⁵I brachytherapy seeds is presented. Carbon bars were used as the substrates, on which a silver coating was deposited by electroless plating, and then, ¹²⁵I was adsorbed by iodinating the silver coating so as to prepare source cores. The radioactive cores were sealed individually in the titanium capsule to fabricate the ¹²⁵I brachytherapy seeds. Quality control checking of the encapsulated ¹²⁵I seeds for dimension, leakage and surface contamination were performed. And the ¹²⁵I seeds using carbon bar as the core substrate underwent computed tomography (CT) scan and X-ray imaging to determine the visualization. This paper provides valuable experiences and data for the preparation of ¹²⁵I brachytherapy seeds.

提出了一种制备¹²⁵ I 近距离放射治疗种子的方法。使用碳棒作为基材，通过化学镀在其上沉积银涂层，然后通过对银涂层进行碘化来吸附¹²⁵ I 以制备源核。放射性核被单独密封在钛胶囊中以制造¹²⁵ I 近距离放射治疗种子。对封装的¹²⁵ I 种子进行了尺寸、泄漏和表面污染的质量控制检查。使用碳棒作为核心基质的¹²⁵ I 种子经过计算机断层扫描 (CT) 扫描和 X 射线成像以确定可视化。本论文为编制¹²⁵ I 近距离放射治疗种子。