- 专利标题: Apparatus for generating x-ray radiation in an external magnetic field
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申请号: US15544854申请日: 2016-01-18
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公开(公告)号: US09960003B2公开(公告)日: 2018-05-01
- 发明人: Andreas Geisler , Svetlana Goβmann , Oliver Heid
- 申请人: SIEMENS AKTIENGESELLSCHAFT
- 申请人地址: DE München
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DE München
- 代理机构: Lempia Summerfield Katz LLC
- 优先权: DE102015201375 20150127
- 国际申请: PCT/EP2016/050862 WO 20160118
- 国际公布: WO2016/120104 WO 20160804
- 主分类号: H01J1/304
- IPC分类号: H01J1/304 ; H01J35/06 ; H01J35/10 ; H01J9/02 ; H01J35/14 ; H01J31/08 ; H01J3/02
摘要:
An apparatus is provided for generating X-ray radiation in an outer magnetic field, which may be generated by a magnetic field device. The apparatus includes a cathode configured to generate an electron beam and an anode configured to retard the electrons of the electron beam and generate an X-ray beam. The apparatus further includes a device configured to generate an electric field orientated from the anode in the direction of the cathode and substantially collinear to the outer magnetic field, wherein the cathode, as an electron emitter, includes a cold cathode that passively provides free electrons by field emission.