Homonym: radium-223 (Radioisotope)
Radium-223 is a radioactive isotope of radium that emits alpha particles. It is primarily used in medical treatments, particularly for patients with advanced prostate cancer that has spread to the bones. The alpha particles emitted by radium-223 can target and destroy cancer cells while minimizing damage to surrounding healthy tissue.
This isotope has a half-life of about 11.4 days, which means it decays relatively quickly. Radium-223 is administered through an injection, allowing it to concentrate in areas of bone affected by cancer. Its use represents a targeted approach in radiation therapy, offering a treatment option for patients with limited alternatives.