Each October, the Nobel Prizes celebrate a handful of groundbreaking scientific achievements. For George de Hevesy, the 1943 Nobel Laureate in chemistry who discovered radioactive tracers, that place ...

That substance, known as a tracer, has been tagged with a tiny amount of short-lived radioactive material that emits positrons. It takes about an hour for the tracer to circulate throughout the body, ...

A "gold standard" scan to improve the detection of prostate cancer will soon be offered in East Yorkshire, according to a medical charity. The Daisy Appeal said the PET scan would involve injecting ...

For the first time, researchers have succeeded in passing an antibody through the blood-brain barrier to act as a tracer for PET imaging of the brain. This resulted in more precise information being ...

One year ago last week the Clinton Laboratories at Oak Ridge, Tenn. began selling radioactive isotopes made in its uranium pile. Already, these atomic by-products have had important influences on U.S.