Different isotypes the one you buy for baloons is not the same type thags used in nuclear reactors
Would highly recommend pausing yohr watch history when you’re satisfied with the recomendations. It stops them from collecting new data based on what you watch. This doesnt affect your revomendations unless you wipe the history
https://sci-hub.se/https://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b03136 Here you go