公开(公告)号：US11424095B1

公开(公告)日：2022-08-23

申请号：US16451313

申请日：2019-06-25

Applicant: General Electric Company

Inventor： Srdjan Acimovic ,  Edward Emaci ,  Michael John Utschig

IPC: A61B6/00 ,  H01J35/10 ,  G01T1/16 ,  G01T7/00

Abstract: A system for passive thermal control of an X-ray tube is provided. The system includes an X-ray tube having an electron beam target and including a rotary bearing assembly supporting the electron beam target in rotation. The rotary bearing assembly includes a stationary shaft and a bearing sleeve configured to rotate with respect to the stationary shaft during operation of the X-ray tube. The rotary bearing assembly also includes a first coolant flow path extending through a center of the stationary shaft and a second coolant flow path disposed through a radially inward portion of the stationary shaft disposed about the center of the stationary shaft. The rotary bearing assembly further includes a flow control valve configured to passively regulate flow of coolant through the second coolant flow path based on a pressure of the coolant.

公开(公告)号：US20180068823A1

公开(公告)日：2018-03-08

申请号：US15258631

申请日：2016-09-07

Applicant: General Electric Company

Inventor： Michael John Utschig ,  Uwe Wiedmann ,  Bruno Kristiaan Bernard De Man ,  Sergio Lemaitre ,  Mark Alan Frontera ,  Antonio Caiafa ,  Jiahua Fan ,  Adam Budde

IPC: H01J35/14 ,  H01J35/06 ,  H01J35/08 ,  H05G1/10

CPC classification number: H01J35/14 ,  H01J35/06 ,  H01J35/08 ,  H05G1/085 ,  H05G1/10 ,  H05G1/58

Abstract: An X-ray tube is provided. The X-ray tube includes an electron beam source including a cathode configured to emit an electron beam. The X-ray tube also includes an anode assembly including an anode configured to receive the electron beam and to emit X-rays when impacted by the electron beam. The X-ray tube further includes a gridding electrode disposed about a path of the electron beam between the electron beam source and the anode assembly. The gridding electrode, when powered at a specific level, is configured to grid the electron beam in synchronization with planned transitions during a dynamic focal spot mode.

公开(公告)号：US10290460B2

公开(公告)日：2019-05-14

申请号：US15258631

申请日：2016-09-07

Applicant: General Electric Company

Inventor： Michael John Utschig ,  Uwe Wiedmann ,  Bruno Kristiaan Bernard De Man ,  Sergio Lemaitre ,  Mark Alan Frontera ,  Antonio Caiafa ,  Jiahua Fan ,  Adam Budde

IPC: H01J35/02 ,  H01J35/14 ,  H01J35/06 ,  H01J35/08 ,  H05G1/10 ,  H05G1/58 ,  H05G1/08

Abstract: An X-ray tube is provided. The X-ray tube includes an electron beam source including a cathode configured to emit an electron beam. The X-ray tube also includes an anode assembly including an anode configured to receive the electron beam and to emit X-rays when impacted by the electron beam. The X-ray tube further includes a gridding electrode disposed about a path of the electron beam between the electron beam source and the anode assembly. The gridding electrode, when powered at a specific level, is configured to grid the electron beam in synchronization with planned transitions during a dynamic focal spot mode.