LINEAR ACCELERATOR FOR ACCELERATING AN ION BEAM Russian patent published in 2008 - IPC H05H9/04 H05H7/22 

FIELD: linear accelerators with drift tubes, possible use for accelerating low energy ion beams.

SUBSTANCE: in accordance to the invention the particles enter the accelerator at low energy, get accelerated and focused along a straight line in several resonance accelerating structures with connection structures positioned between them up to desired energy, for example, for therapeutic purposes. In accelerating structures, excited with resonance electromagnetic field of H-type, several coaxial drift tubes are positioned, between which a set of accelerating gaps is provided. Aforementioned drift tubes are supported by means of, for example, alternating horizontal and vertical legs. Base module consists of two accelerating structures and connection structures positioned between them or when necessary a modified connection structure, connected to radio frequency power generator. Connection structure when necessary may be connected to vacuum system, and also may be fitted with quadripole lenses. Aforementioned base module may be extended with production of modules, which have odd number n of connection structures and even number N=n+1 of accelerating structures. Linear accelerator contains one or more modules and ensures production of high acceleration gradient and very compact structure.

EFFECT: reduced manufacturing costs and operational costs, decreased dimensions of accelerator unit, ensured stability of accelerating field.

3 cl, 11 dwg, 1 tbl