Formulae and procedures useful for the design of linear accelerators

This paper deals with two main subjects encountered in the design of linear accelerators: the beam dynamics and the electrodynamics. Although at first intended as a simple summary of relevant formulae and enumeration of important facts, it was soon realised that a better use of the paper could be obtained by including several derivations and explanations. In this way, the paper became necessarily heavier, but at the same time it evolved into both a collection of formulae and a tutorial on some critical issues. Ion linacs occupy most of the text, but electron linacs are also treated.