METHOD AND APPARATUS FOR GUIDING ELECTRON BEAM IN LINEAR ACCELERATOR CHANNEL

FIELD: physics. ^ SUBSTANCE: method and apparatus for guiding an electron beam in the channel of a linear accelerator can be used in linear induction accelerators of high-current pulsed electron beams during their acceleration and/or transportation in vacuum channels longer than 1 m. In the method, an extra beam is generated at the same time the main beam enters the extra beam or before the current of the extra beam reaches a value equal to 0.1-0.3 of its amplitude value Ie, at that moment in time, where the said value is selected from the condition: Ie =(0.1 -0.3)Im, where Im is amplitude of the main beam. Diametre of emitters and their length in the device simultaneously satisfy the inequalities: D/d>0.1Lm/Le, D/d0,1·Lо/Lд, D/d