X-ray tube anode comprising a coolant tube

• US 9,263,225 B2
• Filed: 07/15/2009
• Issued: 02/16/2016
• Est. Priority Date: 07/15/2008
• Status: Active Grant

• Current Assignee: Rapiscan Systems Incorporated (OSI Systems Incorporated)
• Original Assignee: Rapiscan Systems Incorporated (OSI Systems Incorporated)
• Inventors: Morton, Edward James, Luggar, Russell David, Hunt, Martin
• Primary Examiner(s): Ho, Allen C.
• Application Number:
  US13/054,066
• Publication Number:
  US 20120014510A1
• Time in Patent Office: 2,407 Days
• Field of Search: 378/127, 378/128, 378/130, 378/141, 378/142, 378/199, 378/200, 378/143
• US Class Current: 1/1
• CPC Class Codes: H01J 2235/081 Target material
• CPC Class Codes: H01J 2235/083 Bonding or fixing with the support or substrate
• CPC Class Codes: H01J 2235/086 Target geometry
• CPC Class Codes: H01J 2235/1204 of the anode
• CPC Class Codes: H01J 2235/1262 Circulating fluids
• CPC Class Codes: H01J 35/13 Active cooling, e.g. fluid flow, heat pipes

Abstract

An anode for an X-ray tube includes at least one thermally conductive anode segment in contact with a rigid support member and cooling means arranged to cool the anode. The anode may further include a plurality of anode segments aligned end to end, each in contact with the support member.

Claims

1. An anode for an X-ray tube prepared by a process comprising the steps of:

obtaining at least one thermally conductive anode segment having a top surface and having a first side wall extending out from, and longitudinally along, the top surface and a second side wall opposing the first side wall and extending out from, and longitudinally along, the top surface wherein the at least one thermally conductive anode segment comprises a plurality of thermally conductive anode segments aligned end to end;

placing a rigid support member on the top surface of the at least one thermally conductive anode segment and between the first side wall and the second side wall, wherein each anode segment of the plurality of thermally conductive anode segments is in contact with the rigid support member;

securing the rigid support member to the at least one thermally conductive anode segment between the first side wall and the second side wall; and

arranging a coolant tube between the rigid support member and the at least one thermally conductive anode segment to cool the at least one thermally conductive anode segment.

2. An anode according to claim 1, wherein the coolant tube comprises a cooling conduit arranged to carry coolant through the at least one thermally conductive anode segment.

3. An anode according to claim 2, wherein the cooling conduit is at least partially cut into the at least one thermally conductive anode segment.

4. An anode according to claim 2, wherein the cooling conduit is at least partially cut into the rigid support member.

5. An anode according to claim 2, wherein the cooling conduit has a curved cross-section.

6. An anode according to claim 2, wherein the coolant tube is an annealed copper tube.

7. An anode according to claim 1, wherein each anode segment of said plurality of thermally conductive anode segments is coated with a target metal.

8. An anode according to claim 7, wherein the target metal is applied as a thin film.

9. An anode according to claim 7, wherein the target metal is a metal foil.

10. An anode according to claim 9, wherein the metal foil has a thickness of between 50 microns and 500 microns.

11. An anode according to claim 7, wherein the target metal is applied to a front face of each anode segment of said plurality of thermally conductive anode segments.

12. An anode according to claim 7, wherein the target metal comprises at least one of tungsten, molybdenum, uranium and silver.

13. An anode according claim 1 , wherein each anode segment of said plurality of thermally conductive anode segments is made of copper.

14. An anode according to claim 1, wherein the rigid support member is made of stainless steel.

15. An anode according to claim 1, further comprising arranging an insulated pipe section to feed cooling fluid into the coolant tube.

16. An anode according to claim 15, wherein the insulated pipe section comprises

a ceramic tube connected to the coolant tube;

and

a connector plate attached to one end of said ceramic tube.