Preparation of a radioactive 44Ti target

A thin 42 μCi 44Ti (t1/2=62 yr) target has been prepared for the study of the 44Ti (p, γ)45V reaction. The target areal density is 1.9×1016 44Ti atoms cm−2. Naturally occurring Ti from the scandium source material contaminates the target at an areal density of 1.2×1019 atoms cm−2. The target consists most probably in the chemical form of the TiO2 deposited onto a Ta backing. The target area is 0.20 cm2. The chemical extraction and fabrication procedures used in the preparation of the target were of high efficiency. Overall, the target was prepared with an efficiency of 80%.