| 发明名称 |
X-RAY TUBE ASSEMBLY |
| 摘要 |
According to one embodiment, an X-ray tube assembly includes a cathode which emits electrons in an electron orbit direction, an anode target including a target surface with which electrons emitted from the cathode collides to generate X-rays, a vacuum envelope which contains the cathode and the anode target, and in which at least one recessed portion is formed to be recessed from the outside of the vacuum envelope in such a way as to surround the cathode, and a quadrupole magnetic-field generation portion which is provided outside the vacuum envelope, and which comprises four poles provided in the at least one recessed portion such that the cathode is located in a center of an area surrounded by the four poles. |
| 申请公布号 |
US2016196950(A1) |
申请公布日期 |
2016.07.07 |
| 申请号 |
US201514982489 |
申请日期 |
2015.12.29 |
| 申请人 |
Kabushiki Kaisha Toshiba ;Toshiba Electron Tubes & Devices Co., Ltd. |
发明人 |
Ishihara Tomonari;Anno Hidero |
| 分类号 |
H01J35/14;H01J35/08;H01J35/06 |
主分类号 |
H01J35/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An X-ray tube assembly comprising:
a cathode which emits electrons in an electron orbit direction; an anode target provided opposite to the cathode and including a target surface with which electrons emitted from the cathode collides to generate X-rays; a vacuum envelope which contains the cathode and the anode target, which is vacuum-tightly closed, and in which at least one recessed portion is formed to be recessed from the outside of the vacuum envelope in such a way as to surround the cathode; and a quadrupole magnetic-field generation portion which is supplied with direct current by a DC power supply, and provided outside the vacuum envelope, and which comprises four poles provided in the at least one recessed portion such that the cathode is located in a center of an area surrounded by the four poles. |
| 地址 |
Minato-ku JP |
