PULSED X-RAY TUBE Russian patent published in 2014 - IPC H01J35/02 

FIELD: physics.

SUBSTANCE: invention relates to X-ray engineering and can be used in designing pulsed X-ray tubes for use in small-size X-ray equipment, particularly for medical diagnosis and treating diseases, as well as in other engineering fields. The pulsed X-ray tube comprises a metal housing in form of a hollow cylinder, one base of which is connected to the larger base of an insulator which is made in form of a hollow truncated cone and is placed outside the housing, and the other base of the housing is connected to an X-ray exit window and a cathode with an axially symmetric opening relative to the anode, made in form of a rod which changes into a cone and is directed towards the window, an anode lead which passes along the axis of the device in the cavity of the insulator and is connected to its smaller base. The vertex of the conical part of the anode is pointed at an angle of not more than 60° and is located below the cathode plane at a distance of not more than 2 mm.

EFFECT: high image contrast when working with objects of different optical density.

1 dwg, 1 tbl