Effects of different carriers for adsorption of [125]I on brachytherapy sources

One of the key techniques for the preparation of 125I seeds is adsorption of 125I onto silver bits coated by palladium [pd]. Carriers played an important role in the adsorption of 125I on palladium. KI is used as a carrier for fixing of 125I onto silver wire bits coated with palladium. Three procedures KI, KOH, NH4OH were investigated for adsorption of 125I activity by different carriers. Adsorptions percentage of [125]I on treated silver beads showed about 85% by using KI as a carrier, the KOH showed 74% and 65% for NH[4]OH. The results indicated that, the use of KI as a carrier was suitable for adsorption of 125I on treated silver seeds with Pd than KOH and NH[4]OH