FINE-FOCUS DOUBLE-ELECTRODE PULSED X-RAY TUBE Russian patent published in 2013 - IPC H01J35/00 

FIELD: physics.

SUBSTANCE: anode is in form of a rod with a cone-shaped ending, on the cylindrical surface of which a heat-sink is pressed-on in form of a cylinder of material of high heat capacity and temperature conductivity. The cone-shaped end of the anode lies in a plane which passes through the surface of an explosive emission cathode. The explosive emission cathode is in form of a ceramic disc and a metal ring, which are in mechanical contact in order to form a triple point (metal-vacuum-dielectric contact), which provides high emission current density.

EFFECT: high spatial uniformity, stability of the amplitude of X-ray pulses, high pulse repetition frequency, high power dissipated by the anode.

1 dwg