| 发明名称 |
X-RAY TUBE |
| 摘要 |
According to one embodiment, an X-ray tube includes an envelope including an inner space which is evacuated and is tightly closed and also including an X-ray radiation window, a cathode supporting member provided in the envelope, a cathode secured to the cathode supporting member, emitting electrons, and radiating heat, an anode target provided in the envelope, opposed to the X-ray radiation window, and radiating X-rays due to collision of the electrons emitted from the cathode, and a non-evaporable getter thermally connected to the cathode supporting member on the cathode side and activated by heat due to thermal conduction from the cathode supporting member. |
| 申请公布号 |
US2017076904(A1) |
申请公布日期 |
2017.03.16 |
| 申请号 |
US201615261463 |
申请日期 |
2016.09.09 |
| 申请人 |
Toshiba Electron Tubes & Devices Co., Ltd. |
发明人 |
HANAKI Toshio;SHIMIZU Katsunori;ANNO Hidero |
| 分类号 |
H01J35/16;H01J35/04;H01J35/18 |
主分类号 |
H01J35/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An X-ray tube, comprising:
an envelope comprising an inner space which is evacuated and is tightly closed and also comprising an X-ray radiation window which transmits X-rays to the outside; a cathode supporting member provided in the envelope; a cathode secured to the cathode supporting member, emitting electrons due to supply of electrical current, and radiating heat; an anode target provided in the envelope, opposed to the X-ray radiation window, and radiating X-rays due to collision of the electrons emitted from the cathode; and a non-evaporable getter thermally connected to the cathode supporting member on the cathode side and activated by heat due to thermal conduction from the cathode supporting member heated by the radiant heat from the cathode. |
| 地址 |
Otawara-shi JP |
