| US 7,558,376 B2 | ||
| Rotating anode X-ray tube assembly | ||
| Hidero Anno, Otawara (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and Toshiba Electron Tubes & Devices Co., Ltd., Tochigi-ken (Japan) | ||
| Filed on Sep. 13, 2007, as Appl. No. 11/898,564. | ||
| Claims priority of application No. 2006-269314 (JP), filed on Sep. 29, 2006; and application No. 2007-199965 (JP), filed on Jul. 31, 2007. | ||
| Prior Publication US 2008/0080672 A1, Apr. 03, 2008 | ||
| Int. Cl. H01J 35/10 (2006.01) | ||
| U.S. Cl. 378—130 [378/125] | 26 Claims |
| 1. A rotating anode X-ray tube assembly comprising:
a vacuum envelope integrated with an anode target;
a housing receiving and rotatably holding the vacuum envelope;
a circulation path circulating a cooling medium in a state of closing to at least anode target of the vacuum envelope;
a cathode received and arranged in the vacuum envelope;
a cathode support member that supports the cathode in such a manner that the cathode is stationary and prevented from rotating
relative to the housing;
a bearing mechanism and a vacuum sealing mechanism interposed between the vacuum envelope, and the housing or a stationary
member direct or indirectly fixed to the housing; and
a driver unit for rotating the vacuum envelope,
wherein the vacuum envelope and the anode target are rotated relative to the cathode.
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