Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. 注意：根据任何免责声明，根据 35 U.S.C. 154（b） 将本专利的期限延长或调整 0 天。
Field of Classification Search 分类检索领域
CPC … H01J 35/28; H01J 35/186; H01J 35/08 See application file for complete search history. 中国共产党。。。H01J 35/28;H01J 35/186;H01J 35/08 完整的检索历史，请参阅申请文件。
352415 A 2//1961
H04-144045 A 5//1992 | 352415 | A | $2 / 1961$ |
| ---: | :---: | :---: |
| H04-144045 A | $5 / 1992$ | |
(Continued) （续）
OTHER PUBLICATIONS 其他出版物
International Preliminary Report on Patentability (IPRP) dated Nov. 7, 2019, that issued in WO Patent Application No. PCT/JP2018/ 006981. 2019 年 11 月 7 日的国际专利性初步报告 （IPRP），该报告在 WO 专利申请号中发布。PCT/JP2018/006981.
Primary Examiner - Kiho Kim 初级审查员 - Kiho Kim
(74) Attorney, Agent, or Firm - Faegre Drinker Biddle & Reath LLP （74） 律师、代理人或公司 - Faegre Drinker， Biddle & Reath LLP
Abstract 抽象
An X-ray tube includes: a vacuum housing configured to include an internal space which is vacuum; a target unit configured to be disposed in the internal space, and include a target that generates an X-ray by using an electron beam incident therein, and a target support unit that supports the target, the X-ray generated by the target being transmitted through the target support unit; an X-ray emission window configured to be so provided as to face the target support unit, and seal an opening of the vacuum housing, the X-rays transmitted through the target support unit being transmitted through the X-ray emission window; an elastic member configured to press the target unit in such a direction as to approach the X-ray emission window; and a target shift unit configured to shift the target unit pressed by the elastic member in a direction crossing an incidence direction of the electron beam. X 射线管包括：真空外壳，其配置为包括真空的内部空间;所述目标单元被配置为设置在所述内部空间中，包括利用入射在其中的电子束产生 X 射线的目标，以及支撑所述目标的目标支撑单元，所述目标产生的 X 射线通过所述目标支撑单元传输;X 射线发射窗口，其设置为面向所述目标支撑单元，并密封所述真空壳体的开口，所述 X 射线通过所述目标支撑单元透射的 X 射线通过所述 X 射线发射窗口透射;弹性构件，所述弹性构件，所述弹性构件用于在接近 X 射线发射窗口的方向上压紧所述目标单元;目标移动单元，用于将所述弹性构件压紧的目标单元向与所述电子束的入射方向相交的方向移动。
