发明授权
- 专利标题: Method of making tomogram and apparatus
- 专利标题(中): 制作TOMOGRAM和装置的方法
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申请号: US702299申请日: 1976-07-02
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公开(公告)号: US4039837A公开(公告)日: 1977-08-02
- 发明人: Sadayasu Ohta , Akio Yada , Keizo Inoue
- 申请人: Sadayasu Ohta , Akio Yada , Keizo Inoue
- 申请人地址: JA Kyoto
- 专利权人: Kabushiki Kaisha Morita Seisakusho
- 当前专利权人: Kabushiki Kaisha Morita Seisakusho
- 当前专利权人地址: JA Kyoto
- 优先权: JA51-20455 19760225
- 主分类号: G03B42/02
- IPC分类号: G03B42/02 ; A61B6/00 ; A61B6/14 ; A61B6/02
摘要:
Method and apparatus for making a tomogram according to this invention include one elongated support member supporting an X-ray tube and a film device in an opposed relation with each other at both ends thereof and one vertical shaft supporting the elongated support member thereon. Movement of the axis of the shaft along a desired curve results in the movement of an X-ray beam in the state of the X-ray beam intersecting the curve. In the meantime, an angle of rotation around the axis of the shaft is adjusted so as to maintain an angle of intersection of the X-ray beam with the curve at a predetermined angle. A film surface is moved relatively with respect to the X-ray beam so as to allow the beam to scan the film surface. The velocity of movement of the film surface is synchronized with the movement of the shaft. In the invention, the aforementioned movement of the shaft along the curve, the aforementioned angle of rotation of the shaft and the aforementioned movement of the film surface are respectively controlled or adjusted by digital signals.