See the 7-10 rule (of murky and apparently empirical provenance), although this is for fission products of a bomb, not melted fuel https://physics.stackexchang

See the 7-10 rule (of murky and apparently empirical provenance), although this is for fission products of a bomb, not melted fuel https://physics.stackexchange.com/questions/336049/can-the-7-10-rule-of-thumb-for-radiation-be-understood-theoretically https://physics.stackexchange.com/questions/336049/can-the-7...