In 1913 he invented a counter for detecting atomic particles
[DOC] [TLE] Rutherford, Radioactivity, and the Atomic Nucleus - arXiv.org [PAR] Indeed, he discovered the atomic nucleus and founded ..... developed a 
technique that enabled them to detect individual alpha particles by the 
scintillations .... massive 1913 textbook on radioactivity, titled Radioactive 
Substances and their .... Copenhagen: I am detecting & counting the lighter 
atoms set in motion by .