X-ray tube cooling system
US6400799B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/168
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved x-ray tube cooling system is disclosed. The system utilizes a shield structure that is connected between a cathode cylinder and an x-ray tube housing and is disposed between the electron source and the target anode. The shield a plurality of cooling fins to improve overall cooling of the x-ray tube and the shield so as to extend the life of the x-ray tube and related components. When immersed in a reservoir of coolant fluid, the fins facilitate improved heat transfer by convection from the shield to the to the coolant fluid. The cooling effect achieved with the cooling fins is further augmented by a convective cooling system provided by a plurality of passageways formed within the shield, which are used to provide a fluid path to the coolant. In particular, a cooling unit takes fluid from the reservoir, cools the fluid, then circulates the cooled fluid through cooling passages. The coolant is then output from the passageway and directed over the cooling fins. In some embodiments, the passageways are oriented so as to provide a greater heat transfer rate in certain sections of the shield than in other sections. Also disclosed is an improved braze joint for connecting the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.