US 12,283,450 B2
X-ray tube with inner-collimator
Kasey Otho Greenland, South Jordan, UT (US); Todd S. Parker, Kaysville, UT (US); and Rick Steck, West Jordan, UT (US)
Assigned to Moxtek, Inc., Orem, UT (US)
Filed by Moxtek, Inc., Orem, UT (US)
Filed on Feb. 2, 2023, as Appl. No. 18/104,859.
Claims priority of provisional application 63/315,785, filed on Mar. 2, 2022.
Prior Publication US 2023/0282438 A1, Sep. 7, 2023
Int. Cl. H01J 35/18 (2006.01); H01J 35/06 (2006.01)
CPC H01J 35/186 (2019.05) [H01J 35/064 (2019.05); H01J 35/066 (2019.05)] 20 Claims
OG exemplary drawing
 
1. An x-ray tube comprising:
a cathode and an anode electrically insulated from one another;
the cathode configured to emit electrons, through an internal vacuum of the x-ray tube, towards the anode;
the anode configured to emit x-rays out of the x-ray tube, through an x-ray window, in response to impinging electrons from the cathode;
the anode includes an electrically conductive mount and an electrically conductive inner-collimator;
the mount faces the vacuum on one side and the inner-collimator at an opposite side;
the mount includes a mount-aperture;
the x-ray window spans the mount-aperture and is sealed to the mount;
the inner-collimator includes an inner-collimator-aperture aligned with the x-ray window and the mount-aperture to direct and collimate the x-rays;
the inner-collimator includes a proximal-end nearest the x-ray window and a distal-end farthest from the x-ray window;
an electrically insulative insulating-layer located at the distal-end of the inner-collimator and spanning the inner-collimator-aperture, forming an isolated cavity at the inner-collimator-aperture; and
walls of the cavity include the x-ray window, the inner-collimator, and the insulating-layer.