Title:
X-RAY GENERATION TUBE, X-RAY GENERATOR AND RADIOGRAPHY SYSTEM
Document Type and Number:
Japanese Patent JP2016085946
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To generate X-ray of sufficient dose by controlling the relative position of an electron emission source and a target with high accuracy, while simultaneously preventing the inner periphery of an insulation tube from being charged reliably, in an X-ray generation tube.SOLUTION: A positive electrode member 43 has tubular outer periphery 43b projecting to the negative electrode 51 side, an insulation tube 110 has a groove 116 extending in the tube diameter direction in the end face on the target holding portion 43a side, and an inner peripheral conductive film 112 located on the inner peripheral surface of the insulation tube 110 and the tubular outer periphery 43b are bonded electrically via an in-groove conductive film 113 located in the groove 116.SELECTED DRAWING: Figure 1
Inventors:
IGARASHI YOICHI
Application Number:
JP2014220084A
Publication Date:
May 19, 2016
Filing Date:
October 29, 2014
Export Citation:
Assignee:
CANON KK
International Classes:
H01J35/16; H01J35/08
Attorney, Agent or Firm:
Keisuke Watanabe
Yoshihiro Yamaguchi
Yoshihiro Yamaguchi