PULSED X-RAY TUBE Russian patent published in 2012 - IPC H01J35/00 

FIELD: physics.

SUBSTANCE: tube has a metal housing in form of a hollow cylinder, one base of which is joined to the lager base of an insulator which is in form of a hollow flattened cone and lies outside the housing, and the other base of the housing is joined to a window for outlet of X-rays and a cathode through a hole in the centre of which a sharp anode passes towards the window. The first protective screen is in form of a cylindrical cup with a hole at the centre of the bottom and is joined to the housing and bounds the volume in which the sharp anode and the second protective screen in form of a disc are placed coaxially. The bottom of the first protective screen is in form of a hollow flattened cone with the smaller base on the side of the smaller base of the insulator, where the diameter of the hole in the cathode D₁ of the second protective screen D₂, the hole at the bottom of the first protective screen D₃, the distance S₁ between the top surface of the second protective screen the plane of the cathode and the distance S₂ between the top surface of the second protective screen and the top surface of the smaller base of the hollow flattened cone of the first protective screen are linked by a certain relationship.

EFFECT: longer life of the pulsed X-ray tube.

1 dwg