"Flying Tadpole" wrote in message

Maxprop wrote:
snip I have to
admit that I'm surprised to learn that radioisotopic substances are used
with neonates. Traditionally that was a no-no. Perhaps the isotopic
degradation levels are low enough now as to be inconsequential to
rapidly-growing cells.

Say what? Has there been a change in the universe for 'perhaps
the isotopic degradation levels are low enough now', ie to have
reduced?? Far as I was aware, specific isotopes still decay at
the rates those isotopes have always decayed at. If not, we're
all in dire, dire trouble.

My background in nuclear physics is limited, but I was under the impression
that isotopic substances can be manipulated in constituency sufficiently to
alter the "hotness" as required. Perhaps decay rate is not the appropriate
term.

Max