An x-ray treatment apparatus includes an x-ray generating device, a head
unit, a manipulator and a microwave source. The x-ray generating device
produces x-rays, by letting electrons, which have been emitted from an
electron gun, be accelerated by a linear accelerator and strike a target.
The acceleration of electrons is effected by microwaves. The x-ray
generating device is accommodated in the head unit. The head unit is
attached to a distal end portion of the manipulator. The manipulator
positions the head unit such that x-rays emitted from the head unit may be
applied to a part for medical treatment in a patient. The microwave source
is disposed at a proximal end portion of the manipulator. Microwaves are
propagated from the microwave source to the accelerator through a
waveguide.
