A safety review is currently underway concerning replacing the reactor's current fuel load. During the 12 years that Monju has been offline, enough plutonium-241 in the inner core has transmuted to ...

Where most other space missions have used plutonium-238, the new heater will use americium-241. This is not only cheaper and less controversial, but has a half-life of more than 400 years ...

Plutonium discovered at the bottom of the ocean was found to be refuse from a kilonova that exploded close to Earth 10 million years ago. Kilonovas occur when binary neutron stars spiral closer ...

THE distribution of plutonium in blood serum proteins has been investigated previously 1–3. Normally, americium-241 is present in plutonium samples, and is produced there by the β-decay of ...

The metal is produced when plutonium absorbs neutrons in nuclear reactors or during nuclear weapons tests. Americium-241 is the most common isotope of the element. Atomic space batteries are also ...