Rubidium-82

Rubidium-82 (Rb-82) is a radioactive isotope of rubidium, which is a soft, silvery-white metallic element. Rb-82 is notable for its application in medical imaging, particularly in positron emission tomography (PET) scans. In medical contexts, Rb-82 is used as a positron-emitting radiotracer for myocardial perfusion imaging.