Cyclotron at the Lawrence Radiation Laboratory, University of California Berkeley, 1942.

University of California – Radiation, March 1940-1950. Rockefeller Foundation records; Projects (Grants), RG 1, SG 1.1; Series 100-257 – International and United States; California – Series 205; California – Natural Sciences and Agriculture – Subseries 205.D; Rockefeller Archive Center.