METHOD FOR INCREASING THE CLUSTER ION BEAM CURRENT Russian patent published in 2021 - IPC H01J3/04 H05H7/02 

FIELD: accelerators.

SUBSTANCE: invention relates to the field of charged particle accelerators with a large mass and a small electric charge and can be used to create accelerators of cluster ions for use in nuclear power, solving problems of controlled thermonuclear fusion and for studying the properties of matter at ultrahigh energy density. The method involves the use of an injector for a cluster ion accelerator, which implements the simultaneous extraction of charged particles from the plasma of several sources of cluster ions through several channels, the formation of ion beams, the acceleration of their compression and input into the accelerating HF structure of the accelerator. The injector contains several spaced-apart channels, the input aperture of each of which is connected to a separate source of cluster ions. The process of forming an ion beam, accelerating, focusing and changing the trajectory of its motion, for charged particles with a large mass and a small electric charge using only an electric field, is associated with the need to create high strengths of such a field. For a more efficient implementation of the processes of forming and accelerating beams of cluster ions in the injector, a combination of crossed force fields is used: an axially symmetric electric field and a multipole magnetic field with a complex configuration of field lines. The applied combination of fields of this type makes it possible to both accelerate and effectively keep on a given trajectory of motion, as well as to carry out radial compression of cluster ion beams in each channel for clusters with a wide range of masses and a low charge. The superposition of the electric field and the multipole magnetic field makes it possible to reduce the transverse dimensions of the ion beam, to increase the aperture areas for the extraction of cluster ions from the IR, and to increase the current in the beam of cluster ions with different masses at the exit of the accelerator.

EFFECT: invention provides an increase in the current in a beam of cluster ions with different masses at the exit of the accelerator.

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