(Harry Andreas) wrote:

It does spontaneously release it's energy. That's what half-life is all about.

Sorry, I was unclear. I mean "without intentional triggering".
Of course you are correct here.

But it releases gamma rays, not particles, so there is no direct
comparison with a fission-type chain reaction.

I think I see what you mean - but they're saying this stuff is
(if I understand this) photon pumped - can the same radiation
mechanism that pumps it to a higher state cause a subsequent release ?



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