Plutonium-241 is a radioactive isotope of plutonium with a half-life of about 14.4 years. It is produced through the decay of neptunium-241 and can also be generated in nuclear reactors. This isotope is primarily used in nuclear research and can be found in some types of nuclear fuel. Due to its radioactive nature, plutonium-241 emits alpha particles and has potential applications in nuclear weapons and energy. However, it poses health risks if ingested or inhaled, necessitating strict safety measures in handling and storage.