- 专利标题: Phase contrast X-ray imaging device and phase grating therefor
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申请号: US15027787申请日: 2014-09-26
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公开(公告)号: US10141081B2公开(公告)日: 2018-11-27
- 发明人: Oliver Preusche
- 申请人: SIEMENS HEALTHCARE GMBH
- 申请人地址: DE Erlangen
- 专利权人: Siemens Healthcare GmbH
- 当前专利权人: Siemens Healthcare GmbH
- 当前专利权人地址: DE Erlangen
- 代理商 Laurence Greenberg; Werner Stemer; Ralph Locher
- 优先权: DE102013016700 20131007
- 国际申请: PCT/EP2014/070670 WO 20140926
- 国际公布: WO2015/052017 WO 20150416
- 主分类号: G21K1/00
- IPC分类号: G21K1/00 ; G21K1/06 ; G02B5/18 ; A61B6/00
摘要:
A phase grating for a phase contrast X-ray imaging device has a transverse surface which is to be aligned substantially transversely with respect to a radiation incidence direction and which is spanned by an x-axis and a y-axis perpendicular thereto. The phase grating is formed from a multiplicity of grating webs composed of a basic material, which are arranged alternately with optically denser interspaces. The grating webs subdivide the transverse surface into grating strips which are in each case elongated in the y-direction and which are lined up parallel alongside one another in the x-direction. The phase grating has in each grating strip along a z-axis, which is perpendicular to the transverse plane, a homogeneous total thickness of the basic material which always differs between adjacent grating strips. At least one grating web extends within the transverse surface over a plurality of grating strips.