公开(公告)号：US20160035532A1

公开(公告)日：2016-02-04

申请号：US14446699

申请日：2014-07-30

Applicant: General Electric Company

Inventor： Sergio Lemaitre ,  Ben David Poquette ,  Ryan James Lemminger ,  Donald Robert Allen ,  Judson Sloan Marte ,  Gregory Alan Steinlage ,  Richard Michael Roffers

IPC: H01J35/06 ,  H01J35/08

CPC classification number: H01J35/06

Abstract: An emitter for a cathode of an X-ray tube is provided that includes a shaped emitting surface. The emitting surface is shaped in a suitable process in order to enable the emitting surface to focus electron beams emitted from the emitting surface on a focal spot on a target of less than 1.0 mm without the need for any additional focusing elements in the X-ray tube.

Abstract translation: 提供了一种用于X射线管的阴极的发射器，其包括成形的发射表面。 发射表面被成形为合适的工艺，以便使得发射表面能够将发射表面发射的电子束聚焦在小于1.0mm的靶上的焦斑上，而不需要X射线中的任何附加的聚焦元件 管。

公开(公告)号：US09865423B2

公开(公告)日：2018-01-09

申请号：US14446699

申请日：2014-07-30

Applicant: General Electric Company

Inventor： Sergio Lemaitre ,  Ben David Poquette ,  Ryan James Lemminger ,  Donald Robert Allen ,  Judson Sloan Marte ,  Gregory Alan Steinlage ,  Richard Michael Roffers

IPC: H01J35/00 ,  H01J35/06

CPC classification number: H01J35/06

Abstract: An emitter for a cathode of an X-ray tube is provided that includes a shaped emitting surface. The emitting surface is shaped in a suitable process in order to enable the emitting surface to focus electron beams emitted from the emitting surface on a focal spot on a target of less than 1.0 mm without the need for any additional focusing elements in the X-ray tube.