发明名称 |
X-ray computed tomography system |
摘要 |
This invention provides a compact X-ray CT system capable of obtaining an X-ray CT image having high resolution at a high speed by deflecting a predetermined electron beam and causing the finely focused electron beam to scan on an arcuate anode target inside the same plane as the arcuate anode target for an X-ray source. The anode target for an X-ray source and a detector are disposed in the form of arcs inside substantially the same plane so as to face each other. The electron beam emitted from an electron gun is guided to a deflector through a lens system, is then deflected to a arc form trajectory by a uniform magnetic field generated by the deflector and is guided to the anode target after a reverse magnetic field is applied to the electron beam at a desired position. This electron beam is caused to scan on the anode target at a high speed so as to move the generation position of the X-ray and thus to obtain a sectional image.
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申请公布号 |
US5490193(A) |
申请公布日期 |
1996.02.06 |
申请号 |
US19910734168 |
申请日期 |
1991.07.22 |
申请人 |
HITACHI, LTD.;HITACHI MEDICAL CORPORATION |
发明人 |
KURODA, KATSUHIRO;KOIKE, KOICHI;TAKAFUJI, ATSUKO;NODA, FUMIO |
分类号 |
A61B6/03;H01J35/30;H05G1/70;(IPC1-7):H05G1/60 |
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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