Title:
X線を発生させるためのシステム及び方法
Document Type and Number:
Japanese Patent JP5568413
Kind Code:
B2
Abstract:
In one embodiment, an X-ray tube is provided. The X-ray tube comprises at least one thermionic cathode configured to generate an electron beam, a target assembly configured to generate X-rays when impinged with the electron beam emitted from the thermionic cathode, a high voltage supply unit for establishing an output voltage across the thermionic cathode and the target assembly for establishing an accelerating electric field between the thermionic cathode and the target assembly and a mesh grid disposed between the thermionic cathode and the target assembly, the mesh grid configured to operate at a voltage so as to lower the electric field applied at the surface of the thermionic cathode. Further, the voltage at the mesh grid is negatively biased with respect to the voltage at the thermionic cathode.
Inventors:
Sergio Lemater
Cary Rogers
Yoon Zou
Ji Hong Chen
Cary Rogers
Yoon Zou
Ji Hong Chen
Application Number:
JP2010190197A
Publication Date:
August 06, 2014
Filing Date:
August 27, 2010
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
H01J35/14; H01J35/06
Domestic Patent References:
| JP2239555A | ||||
| JP56041658A | ||||
| JP2009129907A | ||||
| JP63029622A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa