| 发明名称 |
X-RAY TUBE HAVING A DUAL GRID AND DUAL FILAMENT CATHODE |
| 摘要 |
A cathode head can include: a first electron emitter filament having a first size; a first grid pair defining walls of a first filament slot having the first filament therein, each grid member of the first grid pair being electronically coupled to different voltage sources; a second electron emitter filament; and a second grid pair defining walls of a second filament slot having the first electron emitter therein, each grid member of the second grid pair being electronically coupled to different voltage sources. The first grid pair can have a first and second grid members; and the second grid pair can have the second grid member and a third grid member. The first grid member and third grid member are electronically coupled to the same voltage source and the second grid member being electronically coupled to a different voltage source. |
| 申请公布号 |
US2016217965(A1) |
申请公布日期 |
2016.07.28 |
| 申请号 |
US201514607942 |
申请日期 |
2015.01.28 |
| 申请人 |
VARIAN MEDICAL SYSTEMS, INC. |
发明人 |
Canfield Bradley D. |
| 分类号 |
H01J35/04;H01J9/18;H01J35/06;H01J9/04 |
主分类号 |
H01J35/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A cathode head comprising:
a first electron emitter filament having a first size; a first grid pair defining walls of a first filament slot having the first electron emitter filament therein, each grid member of the first grid pair being electronically coupled to different voltage sources; a second electron emitter filament having a different second size spaced apart from the first electron emitter filament; and a second grid pair defining walls of a second filament slot having the first electron emitter therein, each grid member of the second grid pair being electronically coupled to different voltage sources. |
| 地址 |
Palo Alto CA US |
