公开(公告)号：US09842720B2

公开(公告)日：2017-12-12

申请号：US14601308

申请日：2015-01-21

Applicant: Siemens Aktiengesellschaft

Inventor： Jan Berk ,  Jörg Freudenberger ,  Ernst Neumeier ,  Jana Noack ,  Raimund Schwarz ,  Lothar Werner

IPC: H01J35/16 ,  H01J35/06 ,  H01J35/12 ,  H05G1/06 ,  H05G1/10

CPC classification number: H01J35/16 ,  H01J35/06 ,  H01J35/12 ,  H01J2235/1216 ,  H01J2235/1275 ,  H01J2235/168 ,  H05G1/06 ,  H05G1/10

Abstract: An x-ray tube unit includes an x-ray tube unit housing, in which a vacuum housing is disposed, which includes a high-voltage component. The vacuum housing includes an insulating medium circulating in the x-ray tube unit housing flowing around it. Further, a cathode module and an anode are disposed in the vacuum housing, the cathode module lying at high voltage and including an emitter which emits electrons when heating current is fed to it. In addition, a potential difference is present between the cathode module and the anode for accelerating the emitted electrons. In accordance with an embodiment of the invention a high-voltage feed, a heating transformer and a radiation protection component are integrated into the high-voltage component, the high-voltage component being filled at least partly with an electrically-insulating encapsulation material. This produces a compact and installation-friendly x-ray tube unit which has high operational safety.