Excitation function of Zn-68(p,n)Ga-68 reaction for the production of Ga-68

摘要

The production cross section of the medical isotope Ga-68 in the Zn-68(p,n)Ga-68 reaction was measured with the proton energies of 8.6 +/- 0.9, 12.1 +/- 0.5, 15.1 +/- 0.3 and 17.7 +/- 0.2 MeV by using the method of stacked-foil activation and off-line gamma-ray spectrometry. The proton beam intensity at the front position of each Zn-nat was determined by using the Cu-nat(p,x)Zn-62 monitor reaction with the recommended cross section from the IAEA data base library. The Zn-68(p,n)Ga-68 reaction cross-section as a function of proton energy was theoretically calculated by using the default parameters of the computer code TALYS 1.9 and are found to be in general agreement with the present results.