Title:
Ｘ線診断装置、Ｘ線高電圧装置及びＸ線照射装置
Document Type and Number:
Japanese Patent JP7204410
Kind Code:
B2
Abstract:
An X-ray diagnostic apparatus according to an embodiment includes: an X-ray tube including a target configured to generate X-rays in response to emission of electrons thereto, a plurality of filaments configured to emit electrons into substantially the same position on the target, and a grid used in common among the plurality of filaments; intermediate potential setting circuitry configured to set intermediate potential in a position between the plurality of filaments and the target by using the grid; and filament potential controlling circuitry configured to change one or more filaments selected from among the plurality of filaments to emit the electrons to the target, by controlling potential levels of the plurality of filaments with respect to the intermediate potential for each filament, in conjunction with switching of X-ray tube voltage.
More Like This:
| JPS61128497 | X-RAY EQUIPMENT |
Inventors:
Akio Tezuka
Yuki Totsuka
Yuki Totsuka
Application Number:
JP2018194441A
Publication Date:
January 16, 2023
Filing Date:
October 15, 2018
Export Citation:
Assignee:
Canon Medical Systems Corporation
International Classes:
H05G1/32; A61B6/00; H05G1/34; H05G1/56; H05G1/58
Domestic Patent References:
| JP2014007085A | ||||
| JP2007165081A | ||||
| JP2004173856A |
Foreign References:
| WO2009011422A1 |
Attorney, Agent or Firm:
Toranomon Intellectual Property Office