A Travelling-Wave Linear Accelerator for 4-MeV. Electrons Fry, D. W. ; R. -S. -Harvie, R. B. ; Mullett, L. B. ; Walkinshaw, W. Abstract Publication: Nature Pub Date: November 1948 DOI: 10.1038/162859a0 Bibcode: 1948Natur.162..859F