Patent · US Active

Electron gun and X-ray source and CT device having the electron gun

US10748731B2 · kind B2 · utility

0Cited by

5References

19Claims

0Family size

Assignees

TSINGHUA UNIVERSITY · CN
NUCTECH COMPANY LIMITED · CN

Inventors

Wenhui Huang · Beijing, CN
Dongsheng Zhang · Singapore, SG
Qingxiu Jin · Beijing, CN
Chengjun Tan · Beijing, CN
Donghai Liu · Tangxia, CN
Qun Luo · Beijing, CN
Chuanxiang Tang · Beijing, CN

Key dates

Filing date	Dec 28, 2017
Grant date	Aug 18, 2020
Priority date	—
Expiry date	Aug 2, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2235/068
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electron gun, an X-ray source and a CT device are provided. The electron gun includes a body having a first end portion and a second end portion opposite to each other, wherein the first end portion is a connecting end portion; an internal cavity is formed in the body and has an opening positioned on the second end portion; a cathode, a grid, a compensation electrode and a focus electrode, orderly arranged in the internal cavity in a direction from the first end portion to the second end portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.