Patent ID: 7839980

Claim:
A cooling apparatus for an X-ray tube insert to be received within an X-ray tube housing, comprising: a flow diversion unit configured (i) to divert a portion of a flow of coolant and (ii) to allow an undiverted portion of the flow of coolant into an interior coolant-containing region of the X-ray tube housing; and a flow director configured to direct the diverted portion of the flow of coolant toward a window of the X-ray tube insert, where the diverted portion of coolant commingles with the undiverted portion of coolant in the interior coolant-containing region of the X-ray tube housing, wherein the flow director comprises a flow sleeve, the flow sleeve including (i) an arc-shaped body having a coolant passage, (ii) a wall containing a single notch and (iii) a sleeve connected to the body in a region of the single notch, the sleeve further being arc-shaped to substantially match the arc-shape of the body, further wherein the diverted portion of the flow of coolant exits the flow sleeve in a generally wedge-shaped flow pattern.