초록 ▼

A peripheral cooling duct (36) is mounted on a removable front door panel (26) of a CT scanner (10). A pressure source (74) supplies ambient air at elevated pressure through air inlet means (70) defined by an inner wall (78) of the cooling duct. Concentric flanges (58, 60) extending inward toward th

A peripheral cooling duct (36) is mounted on a removable front door panel (26) of a CT scanner (10). A pressure source (74) supplies ambient air at elevated pressure through air inlet means (70) defined by an inner wall (78) of the cooling duct. Concentric flanges (58, 60) extending inward toward the inner region (76) of the CT scanner define a slit-like circular nozzle opening (56). Air is directed from the cooling duct through the nozzle opening across radiation detectors (20) for cooling the detectors and other features of the CT scanner during scanner operation.

대표청구항 ▼

A CT scanner comprising: a means for defining an examination region; a radiation source means for rotating a beam of radiation about the examination region; a plurality of radiation detectors for receiving radiation which has transversed the examination region from the source means and for producing

A CT scanner comprising: a means for defining an examination region; a radiation source means for rotating a beam of radiation about the examination region; a plurality of radiation detectors for receiving radiation which has transversed the examination region from the source means and for producing electrical signals indicative of the received radiation; an image reconstruction means for reconstructing the electrical signals into an image representation; a panel defining a wall for shielding the source means and radiation detectors from exposure to surrounding elements; and, a cooling duct for conveying air to a generally circular outlet peripherally disposed about the examination region, the outlet defined by circular concentric flanges which project inward from the cooling duct to direct air over the radiation detectors for regulating the temperature of the detectors during CT scanner operation.