And after a short P‑32 radiolabeling run (about 5 µCi, 20 min at the hood), my GM pancake at about 3 cm gives a clean 10 s scan on bench-top smears, yet LSC on the same wipes in [redacted] Ultima Gold reads about 25 cpm above background once I apply the quench curve… In practice, do you let the LSC result drive the release decision for the area, or do you set a dual criterion, and how are you documenting that for radiation safety sign-off? I tend to defer to the more sensitive radiochemical method, but I want our RPP to be consistent and defensible.