发明名称 |
X-ray analysis apparatus, especially computer tomography apparatus and x-ray target and collimator therefor. |
摘要 |
<p>An X-ray analysis apparatus has a charged particle beam generator (1,2), an X-ray generating target (3) bombarded by the beam and a detector (8) for X-rays from said target (3) transmitted by a test piece (6). To improve the spatial resolution of the apparatus, the beam size is reduced at the target by locating the target (3) outside a vacuum chamber of the beam generator (1,2) by providing the target (3) as a non-circular narrow track of X-ray generating material exposed at both surfaces of the target, and by providing the beam generator with a beam accelerator and means (2) for reducing the beam diameter between the beam accelerator and the target (3). <IMAGE></p> |
申请公布号 |
EP0461776(A2) |
申请公布日期 |
1991.12.18 |
申请号 |
EP19910304691 |
申请日期 |
1991.05.23 |
申请人 |
HITACHI, LTD. |
发明人 |
KAMATA, SHOJI;IZUMI, SHIGERU |
分类号 |
A61B6/03;G01N23/04;G01T1/161;G21K1/00;G21K1/02;G21K1/04;G21K1/087;G21K1/093;G21K5/08;G21K5/10;H01J35/00;H01J35/08;H04N5/32 |
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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