It is very correct - typical amounts for Ir used in cameras is around 50-90 Curies. The half-life is 75 days, which means after the first 75 days only half of that is still there. There have been instances of much higher amounts lost in the US...the one notable case many years ago was one where a kid picked it up and put the pellet in his back pocket. Took it home, and ended up dying...but that was a different radioactive isotope (Cobalt if I remember correctly) and much stronger.
The whole concept of dirty bombs is that "nuclear or radioactive" scares the hell out of people and that is all it is really going to be used for - the radioactivity can be cleaned up relatively easily and once dispersed would be so low strength, that it wouldnt have any health effects
Quote:
Originally Posted by Barry-xlovecam
Iridium-192: how dangerous is it?
I hope this is correct  |