公开(公告)号：US10818466B1

公开(公告)日：2020-10-27

申请号：US16400735

申请日：2019-05-01

Applicant: GE Precision Healthcare LLC

Inventor： Donald Robert Allen ,  Sandhya Dammu ,  Andrew Marconnet ,  Gregory Steinlage

IPC: H01J35/06

Abstract: An x-ray tube includes an electron emitter and a cathode cup having a recess that holds the electron emitter. The recess has a bottom surface, and a shield is positioned in the recess between the electron emitter and the bottom surface. The shield is configured to receive deposited sublimated emitter material and to maintain the sublimated emitter material away from the electron emitter.

公开(公告)号：US20200350137A1

公开(公告)日：2020-11-05

申请号：US16400735

申请日：2019-05-01

Applicant: GE Precision Healthcare LLC

Inventor： Donald Robert Allen ,  Sandhya Dammu ,  Andrew Marconnet ,  Gregory Steinlage

IPC: H01J35/06

Abstract: An x-ray tube includes an electron emitter and a cathode cup having a recess that holds the electron emitter. The recess has a bottom surface, and a shield is positioned in the recess between the electron emitter and the bottom surface. The shield is configured to receive deposited sublimated emitter material and to maintain the sublimated emitter material away from the electron emitter.