ESTRO PT 2018

1929 Ernest Orlando Lawrence (8 Aug 1901 –27 Aug 1958)

• 1931 functioning cyclotron 4.5 inch (11.4 cm) 80 keV protons – 6 months later 11 inch (27.8 cm) cyclotron 1 MeV. • 1946 Berkeley synchrocyclotron 184 inch (467 cm) >100 MeV

Drawing of the cyclotron according to Lawrence’s 1934 patent. Lawrence never asked royalties