Patent ID: 8239159

Claim:
A method used to yield irradiation products with minimal impurities for solid targets for gallium (Ga)-68/germanium (Ge)-68 generators comprising steps: a. Calculating a thickness d for a electroplated gallium (Ga)-69 on the solid target; b. On a graph of incident energy decay curves comprising a plural number of different irradiation energy doses Xi and 69Ga(p, 2n) 68Ge target thickness, selecting a decay curve with a default irradiation energy dose Xi, and based on the electroplating thickness d deriving a relative irradiation energy dose Yi after decay; c. On a graph of corrected function curves for 69Ga(p, 2n) 68Ge incident energy dose and reaction cross-sectional energy with different germanium (Ge)-68, gallium (Ga)-68, zinc (Zn)-65 irradiation doses and cross-sectional area, based on a defined position by irradiation energy dose Xi and the relative irradiation energy dose Yi, deriving two nuclear reaction cross-sectional areas corresponding to germanium (Ge)-68 and obtaining a mean reaction area (MRA); by the same means, deriving the two nuclear reaction cross-sectional areas corresponding to gallium (Ga)-68 and two nuclear reaction cross-sectional areas corresponding to zinc (Zn)-65 and calculate the mean reaction area for each; d. Repeating the above step b and step c and completing in sequence other different irradiation energy doses Xi, and deriving a plural number of groups of MRAs corresponding to germanium (Ge)-68, gallium (Ga)-68 and zinc (Zn)-65; e. Selecting a maximum MRA corresponding to germanium (Ge)-68 and a minimum MRA corresponding to gallium (Ga)-68 and zinc (Zn)-65, and generating a required default radiation dose for each reaction cross-sectional area in the group, which is an optimal reaction energy.