The design of highly reliable RF system for high power linacs

Possibility of substantial reliability growth of high intensity linear ion accelerators, for solving of a number of nuclear power engineering problems is considered. A way of uninterrupted maintenance accelerating RF field in a main part of such accelerators-MPA, where particles receive the main part of energy is suggested. If each section of MPA contains 1-3 accelerating gaps and is excited from separate RF channel, the failure of one or even several channels will not destroy the resonant acceleration. Besides that it is easy to compensate the acceleration shortage (on time of channel repair) by a small automatic increase of accelerating field strength in the rest of the operating sections. The great quantity of sections from a disadvantage is transformed into advantage because failure-free MPA operation can be maintained. In the report quantitative estimations for the method suggested and its comparison with variants of the RF channel reserve are presented.