Dunning wanted a more powerful neutron source and the cyclotron appeared as an attractive tool to achieve this end .
John R. Dunning , professor of physics at Columbia , closely followed the work of Ernest Lawrence on the cyclotron .
professor wanted a more powerful neutron source and the cyclotron appeared as an attractive tool to achieve this end .
John R. Dunning , professor of physics at Columbia , closely followed the work of Ernest Lawrence on the cyclotron .