Using high-intensity proton beams, researchers made significant quantities of titanium-44 (44Ti), which is particularly useful to the astrophysics research community in their studies of supernovae. In pursuit of alternative uses for this isotope, the researchers also designed a system that fixes this isotope on a surface. There, it decays into the much shorter-lived scandium-44g (44gSc). The scandium is vital to positron emission tomography (PET) scans of activities in the brain, heart and elsewhere. Read more.