发明名称 |
Tomographic apparatus for the production of transverse layer images |
摘要 |
In an exemplary embodiment, a radiation measuring arrangement has two x-ray tubes of different radiation energy which generate radiation beams penetrating the radiography subject, and also has a radiation receiver which determines the radiation intensity behind the subject. The radiography subject is irradiated from different directions. A computer determines, for every image point, the attenuation coefficient for every radiation energy and determines therefrom the mean ordinal number and the density. The radiation receiver is designed as a stationary detector ring. For scanning only the x-ray tubes are rotated about the radiography subject. They are maintained at such a distance from one another that no detector element is simultaneously impinged upon by both radiation beams.
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申请公布号 |
US4345158(A) |
申请公布日期 |
1982.08.17 |
申请号 |
US19800196530 |
申请日期 |
1980.10.14 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
PFEILER, MANFRED;PAULI, KARLHEINZ |
分类号 |
A61B6/03;(IPC1-7):A61B6/00 |
主分类号 |
A61B6/03 |
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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