METHOD OF SPATIALLY DIRECTED LASER ACCELERATION OF BEAM OF CHARGED PARTICLES IN PLASMA WITH INHOMOGENEOUS CONCENTRATION OF ELECTRONS Russian patent published in 2024 - IPC H05H11/00 

FIELD: electricity.

SUBSTANCE: invention relates to a method for spatially directed acceleration of particles by ultrashort laser pulses of high intensity in plasma with inhomogeneous distribution of electron concentration. Method involves directing a focused accelerating laser pulse of femtosecond duration with power of more than 0.1 terawatt through plasma, forming a plasma channel along the optical axis of the laser pulse and gaining energy by particles over the length of the plasma channel. Plasma channel curvature is provided, caused by deviation of the axis of propagation of the accelerating pulse relative to the initial direction, due to refraction of light in the presence of a transverse gradient of concentration of electrons in the plasma, as well as changing the direction of the beam of accelerated electrons in accordance with the curvature of the plasma channel and the axis of propagation of the accelerating pulse while maintaining the average energy of particles in the beam and divergence of the beam.

EFFECT: possibility of obtaining a collimated electron beam with divergence less than 0.1 rad and average particle energy of more than 1 MeV by means of pulsed laser acceleration of the beam in plasma with a transverse gradient of electron concentration relative to the axis of propagation of the accelerating laser pulse.

5 cl, 3 dwg