发明名称 |
COLLIMATION FOR DISTANCED FOCAL SPOTS |
摘要 |
The present invention relates to collimation of X-ray radiation. In order to provide an X-ray collimation suitable for focal spots spaced apart from each other with improved use of the provided radiation beam, an X-ray source arrangement (10) for medical imaging is provided. The X-ray source arrangement comprises an X-ray source (12), and an X-ray beam shutter device (14). The X-ray source is configured to generate X-ray radiation (18) at least at a first (20) and second focal spot position (22) distanced apart from each other in a direction (D) transverse to a main radiation direction (R). The X-ray beam shutter device comprises at least a first pair of shutters (28) defining a first diaphragm (30) for a first X-ray beam generated at the first focal spot position, and at least a second pair of shutters (34) defining a second diaphragm (36) for a second X-ray beam generated at the second focal spot position. The first pair of shutters is configured for alignment with a first line-of-sight (39) between the first focal spot position and a center of a detector, and the second pair of shutters is configured for alignment with a second line-of-sight (42) between the second focal spot position and a center of a detector. The first and the second diaphragm partly overlap. |
申请公布号 |
EP2994052(A1) |
申请公布日期 |
2016.03.16 |
申请号 |
EP20140721857 |
申请日期 |
2014.05.06 |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
KREMER, FRANS HENK;HOFSINK, ROBERT DERK JAN HENDRIK |
分类号 |
A61B6/06;A61B6/00;A61B6/02;G21K1/02 |
主分类号 |
A61B6/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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