Electron linear accelerator

The invention belongs to the technical field of electron accelerators, and particularly relates to an electron linear accelerator, in particular to an energy-adjustable electron linear accelerator. The electron linear accelerator comprises the adjustable power divider, an output port of the power divider is connected with two electron linear accelerating tubes respectively, the piston short-circuit surface of the adjustable power divider is connected with a stepping motor, and the stepping motor adjusts the position of the short-circuit piston to change reflection microwave phases borne by the two output ends of the power divider, so that the energy of electron beams output by the accelerators connected to the two ends is changed. The microwave power source can be effectively prevented from shaking in the energy adjusting process, and the assembly size and weight of the device are greatly reduced. 本发明属于电子加速器技术领域，具体涉及一种电子直线加速器，尤其是一种能量可调的电子直线加速器。本发明的电子直线加速器中包括了可调功率分配器，该功率分配器的输出端口分别连接了两只电子直线加速管，可调功率分配器的活塞短路面与步进电