METHOD FOR CONTROLLED COLLECTIVE ACCELERATION OF ELECTRON-ION BUNCHES Russian patent published in 2014 - IPC H05H3/00 

FIELD: physics.

SUBSTANCE: invention relates to acceleration engineering. The method involves forming a high-current tubular beam of rotating electrons in a stationary magnetic field, capturing electrons in a magnetic trap, filling the electron bunch with ions by ionising gas in the vacuum chamber of an accelerator or from a plasma bunch prepared in advance. In the disclosed method, the external effective potential well of the magnetic trap is shifted stepwise and synchronously with the movement of ions and electrons are shifted and held in the direction of acceleration. The shift value of the centre of the well is selected at each step such that ions fall in the acceleration region through the electric field of the electron bunch.

EFFECT: avoiding disruption of the electron and ion components of bunches, disruption of the acceleration of ions over a long length and development of numerous instabilities, achieving high periodicity of operation and compactness of the accelerator and the possibility of accelerating a large number of ions per cycle (about 5 to 10) with short pulse duration and the possibility of accelerating ions over a long length.

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