Noun
the chemistry of radioactive substances
Source: WordNetApplied radiochemistry In the early 1920s, Otto Hahn created a new field of work. Source: Internet
I believe that it is fair to refer to Otto Hahn as the father of radiochemistry and of its more recent offspring nuclear chemistry. Source: Internet
It was the first of more than 250 scientific publications of Otto Hahn in the field of radiochemistry. Source: Internet
Using the "emanation method", which he had recently developed, and the "emanation ability", he founded what became known as "Applied radiochemistry" for the researching of general chemical and physical-chemical questions. Source: Internet