초록 ▼

A computer tomography apparatus has a stationary part in which a live ring is rotatably seated, the live ring carrying heat generating components such as an x-ray source and a radiation detector, which are disposed on opposite sides of an opening in which an examination subject is received. The stat

A computer tomography apparatus has a stationary part in which a live ring is rotatably seated, the live ring carrying heat generating components such as an x-ray source and a radiation detector, which are disposed on opposite sides of an opening in which an examination subject is received. The stationary part and the live ring limit a sealed annular channel therebetween, the channel having at least one inlet opening and at least one outlet opening for a gaseous coolant. A conduit, which also contains a circulating coolant, has various portions disposed to carry away heat from the heat generating components, and another portion disposed within the annular channel so that the heat can be removed therefrom by the gaseous coolant. The outlet opening and the inlet opening of the channel are connected to form a closed circulation loop for the coolant flowing in the annular channel, with a heat exchanger being disposed between the inlet and the outlet through which the channel coolant, as well as an additional coolant, flow. The closed circulation system avoids air drafts which are undesireable for hygeinic reasons.

대표청구항 ▼

A computer tomography comprising: a stationary apparatus part; a live ring rotatably stated on said stationary apparatus part, said live ring carrying at least one heat generating component; said stationary apparatus part and said live ring in combination limiting sealed annular channel therebetween

A computer tomography comprising: a stationary apparatus part; a live ring rotatably stated on said stationary apparatus part, said live ring carrying at least one heat generating component; said stationary apparatus part and said live ring in combination limiting sealed annular channel therebetween; at least one inlet and at least on outlet for said annular channel on said stationary apparatus part; means for circulating a liquid coolant for carrying heat generated by said heat generating component away from said heat generating component, said means for circulating having a portion thereof disposed in said annular channel and preventing exposure of said liquid coolant to said annular channel; and means including a heat exchanger connecting said inlet and said outlet of said annular channel in a closed circulation loop for circulating a gaseous coolant in said channel to remove heat from said liquid coolant in said portion of said means for circulating said liquid coolant in said channel.