Tupcek t1_j71084n wrote
Reply to comment by Janezo in A medical isotope made from nuclear weapons waste (Tc-99m) has a six-hour half-life. How do hospitals keep it in stock? by Gwaiian
it has six hours half-life. In 24 hours, only 6% remain and in 48 hours 0,4%
carrotaddiction t1_j711d9z wrote
and that's without factoring in its biological halflife. Most of it goes down the toilet.
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