posted on Nov, 1 2011 @ 05:47 PM
dunno if you have that land mine in your cells or not, but you could have found the answer to the half life of Pu239 yourself with a bit of research -
- yes it is 24,400 years.
Aas I understand it the longer the 1/2 life the less radiation is actually emmitted in any given period - so Pu239 emits much less radiation in, say,
a year, than Plutonium 238 - which has a 1/2 lif of about 88 years.
I'd be quite interested in finding a simple explaination of that if anyone has one??
is quite dangerous if it originates inside you because the particles are
relatively huge - as large as a helium atom - so they will certainly desposite a great deal of energy into anything they hit - usually they are
stopped by jsut a few cm or air, but if htey originate inside you obviously the 1st thing they hit is going to be tissue, not air.
The largest natural source of alpha radiation is Radon - a gas found in almost all rock & soil.
So even if you don't have any Pu239 in your lungs you almost certainly do have Radon already.