Method for Making Radioactive Isotopic Gallium-67

摘要

Disclosed is a method for making carrier-free radioactive isotopic gallium-67. Stable isotopic zinc-68 is turned into zinc-68 solid target by disposition or electroplating. Then, the zinc-68 solid target is subjected to a proton beam. A cyclotron is used to provide irradiation from 15 to 40 MeV. After the irradiation, the zinc-68 solid target is dissolved in concentrated acid and turned into solution that contains zinc-65, zinc-68, gallium-67 and gallium-68. High concentrated hydrochloric acid and resin are added into the solution for exchange of ions. Zinc-68 liquid and gallium-67 liquid are filtered and separated from the solution. Thus, pure gallium-67 liquid is produced. With a vaporizer, the gallium-67 liquid is vaporized and turned into radioactive isotopic gallium-67.