Abstract :
The paper gives an account of the various forms of electro-nuclear machines for the acceleration of charged particles, emphasis being laid on the radio-frequency aspects of the design and performance. As an introduction, particle electrodynamics and the original d.c. and l.f. accelerators are examined. Linear accelerators in resonant and travelling-wave circuit form are them described. Orbital or cyclic machines, with both constant and time-varying magnetic fields, are considered, and the survey concludes with a bibliography of published information.