#12788
vansig
Participant

Let’s imagine you accidentally ingested 11 grams of the stuff; that would be 6.022×10^23 atoms; all of this would be gone in 79 half-lives = 1606 minutes or about 1.11 days.

Chance of this much collecting in the reactor? none; how much of this could collect in the reactor? we can calculate this if we know the % yield of carbon-11.

[ let’s take a 5 MW reactor with system efficiency ~ 50%, so that’s 10 MJ/s of fusions. At 8.7 MeV energy release per reaction, ( = 1.39389361 x10^-12 joules) that would be
7.18 x 10^18 reactions per second; if carbon-11 yield were 100% it would take, neglecting decay, 83940 seconds or 0.97 day to build up the 11 grams, above ].

so it turns out that at above 87% yield, the carbon-11 concentration would be able to build up; but any less than that and it just cant. it turns out that yield is much lower,
(i dont have the figure, so i can just guess that it would be in the amounts of nanograms to micrograms?).