“The isotope of interest for space is americium-241…Its half-life is a staggering 432 years, five times longer than plutonium-238.”
“The isotope of interest for space is americium-241…Its half-life is a staggering 432 years, five times longer than plutonium-238.”
It also costs about 10 times as much as gold. Still actually cheaper than Pu-238 though but hard to put a price on Pu since it isn’t for sale.
As an alpha emitter it is as dangerous as Polonium but it doesn’t dissolve in water. It is easily shielded but if it gets in your body it causes lots of damage, similar to Plutonium.