atomic-flash:Pre-PET Headgear: In 1961, chemists at Brookhaven National Laboratory studied how to de
atomic-flash:Pre-PET Headgear: In 1961, chemists at Brookhaven National Laboratory studied how to detect small brain tumors by analyzing the decay of radioactive material injected into the patient’s blood stream and absorbed by the tumor. To help them BNL’s Instrumentation Division built different arrays of detectors. This circular array proved to be the best. (image US Dept. of Energy) -- source link