Acronyms used:

LNT stands for Linear No Threshold: cancer risk is directly proportional to dose, that doses are cumulative over time (rate doesn‘t matter), and that there is no threshold or safe dose. This contradicts studies that we have about people who received enough CUMULATIVE doses of radiation that they would be dead if it was at the same time.

ALARA: Radiation should be As Low As Reasonably Achievable. In practice this means that any cost reduction simply means freed money that you're now required to spend on safety.