HIGH-FREQUENCY ACCELERATING STRUCTURE FOR ION BEAMS EXTRACTED FROM LASER PLASMA Russian patent published in 2014 - IPC H01J3/04 

FIELD: physics.

SUBSTANCE: invention relates to charged particle accelerators and can be used in medicine and engineering. In a high-frequency accelerating structure for ion beams extracted from laser plasma, consisting of a high-frequency resonator with an accelerating electric field and drift pipes, the distance between the centres of adjacent gaps of which varies according to a certain law, input and output ends of all drift pipes are fitted with metal gauzes which are in the form of axially symmetrical concentric rings with radial cross-pieces, the value of the equilibrium phase of the accelerating electric field at the centre of the accelerating gaps corresponds to the maximum value of the strength of said field. There is no transverse electric field between the drift pipes and only an axially symmetrical longitudinal, ion-accelerating electric field is formed, the value of which does not depend on the distance to the central longitudinal axis.

EFFECT: high intensity in an accelerated ion beam at the output of the high-frequency accelerating structure of the accelerator which uses laser ion sources in which plasma is formed when target material is irradiated with optical laser radiation.

4 dwg