发明授权
US07486770B2 Focus-detector arrangement of an X-ray apparatus for generating projective or tomographic phase contrast recordings
有权
用于产生投影或断层相位对比记录的X射线设备的焦点检测器布置
- 专利标题： Focus-detector arrangement of an X-ray apparatus for generating projective or tomographic phase contrast recordings
- 专利标题（中）： 用于产生投影或断层相位对比记录的X射线设备的焦点检测器布置
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申请号： US11700172申请日： 2007-01-31
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公开(公告)号： US07486770B2公开(公告)日： 2009-02-03
- 发明人: Joachim Baumann , Christian David , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Franz Pfeiffer , Stefan Popescu , Manfred Schuster
- 申请人： Joachim Baumann , Christian David , Martin Engelhardt , Jorg Freudenberger , Eckhard Hempel , Martin Hoheisel , Thomas Mertelmeier , Franz Pfeiffer , Stefan Popescu , Manfred Schuster
- 申请人地址： DE Munich
- 专利权人： Siemens Aktiengesellschaft
- 当前专利权人： Siemens Aktiengesellschaft
- 当前专利权人地址： DE Munich
- 代理机构： Harness, Dickey & Pierce PLC
- 优先权： DE102006004604 20060201; DE102006004976 20060201; DE102006037256 20060809
- 主分类号： G01N23/04
- IPC分类号： G01N23/04
摘要：
A focus-detector arrangement includes a radiation source with a focus, arranged on a first side of the subject, for generating a fan-shaped or conical beam of rays; at least one X-ray optical grating arranged in the beam path, with at least one phase grating arranged on the opposite second side of the subject in the beam path generating an interference pattern of the X-radiation preferably, in a particular energy range; and an analysis-detector system which detects at least the interference pattern generated by the phase grating in respect of its phase shift with position resolution. According to at least one embodiment of the invention, at least one X-ray optical grating including bars which are free from overhangs form shadows in the beam path of the fan-shaped or conical beam of rays.
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