Title:
X線発生装置
Document Type and Number:
Japanese Patent JP4796112
Kind Code:
B2
Abstract:
An X-ray generator comprises a cathode electrode (15), a grid electrode (17) for controlling an electron beam (e) generated by the cathode electrode (15), a focus electrode (18) for focusing the electron beam (e), and an anode target (14) for emitting X rays by the collision of the electron beam (e). A bias voltage (Vb) is impressed between the cathode electrode (15) and the grid electrode (17) from a bias voltage generating section (20). A tube voltage (Vt) is impressed on the anode target (13) from a tube voltage generating section (19). A voltage dividing section (31) divides the tube voltage (Vt) to generate a focus voltage (Vf). The effect of a variation in voltage on the formation of a focal point of the electron beam is suppressed by impressing such a focus voltage (Vf) on the focus electrode (18).
Inventors:
Takashi Shimono
Application Number:
JP2008259284A
Publication Date:
October 19, 2011
Filing Date:
October 06, 2008
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Electronic Engineering Co., Ltd.
Toshiba Electronic Engineering Co., Ltd.
International Classes:
H05G1/00; H01J35/14; H05G1/26; H05G1/30; H05G1/32; H05G1/34
Domestic Patent References:
| JP684664U | ||||
| JP2000251830A | ||||
| JP2001167724A |
Attorney, Agent or Firm:
Norio Ohu