![X射线管](/CN/2013/8/7/images/201380035466.jpg)
基本信息:
- 专利标题: X射线管
- 专利标题(英):X-ray tube
- 申请号:CN201380035466.9 申请日:2013-06-28
- 公开(公告)号:CN104428865A 公开(公告)日:2015-03-18
- 发明人: 石原智成 , 赤堀直纪 , 阿武秀郎
- 申请人: 株式会社东芝 , 东芝电子管器件株式会社
- 申请人地址: 日本东京
- 专利权人: 株式会社东芝,东芝电子管器件株式会社
- 当前专利权人: 佳能电子管器件株式会社
- 当前专利权人地址: 日本东京
- 代理机构: 上海专利商标事务所有限公司
- 代理人: 胡秋瑾
- 优先权: 2012-148335 2012.07.02 JP
- 国际申请: PCT/JP2013/067852 2013.06.28
- 国际公布: WO2014/007167 JA 2014.01.09
- 进入国家日期: 2014-12-31
- 主分类号: H01J35/06
- IPC分类号: H01J35/06
Provided is an x-ray tube capable of easily and stably performing a focus dimension variable control and a tube current control. The x-ray tube is equipped with a cathode (10) having a filament (11) and a trench portion (16) in which the filament (11) is housed. In the x-ray tube, the trench portion (16) has: a pair of first bottom surfaces (S1) having the same plane as a plane on which the filament (11) is positioned and sandwiching the filament (11) in the width direction (db) of the trench portion (16); and second bottom surfaces (S2) sandwiching the filament (11) and the pair of first bottom surfaces (S1) in the length direction (da) of the trench portion (16) and positioned on the more opening (16a) side of the trench portion (16) than the pair of first bottom surfaces (S1).
公开/授权文献:
- CN104428865B X射线管 公开/授权日:2017-04-26