HIGH-PERFORMANCE X-RAY GENERATING APPARATUS WITH COOLING SYSTEM

摘要

An X-ray generation apparatus (10) has a housing (12) comprising an evacuated envelope (14) with a rotatable anode target (20) surrounded by an all metal grounded exterior structure and a cooling system. The cooling system comprises a coolant circulating system with heat exchanger and means for circulating a fluid coolant through an interior of the X-ray generating apparatus; a hollow shield structure (22) with center aperture for passing electron beam; and a cooling block (27) which is disposed proximate to the rotatable anode target and comprises a disk with a plurality of concentric annular channels formed by concentric annular partitions. The shield structure and the disk of the cooling block are made of thermally conductive material. An interior of the shield structure is filled with structures such as pins (35), fins (32) or pack bed (36) which are made of thermally conductive materials. The fluid coolant is circulated through the shield structure, then into the plurality of channels of the cooling block and via an interior of the housing to the heat exchanger for efficient cooling of the X-ray generating apparatus.