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1. 发明授权

US5799057A Collimator and detector for computed tomography systems 失效
公开(公告)号：US5799057A
公开(公告)日：1998-08-25
申请号：US773083
申请日：1996-12-26
申请人： David M. Hoffman , Michael Thomas Mruzek , August O. Englert
发明人： David M. Hoffman , Michael Thomas Mruzek , August O. Englert
IPC分类号： G01T1/20 , A61B6/03 , A61B6/06 , G01N23/04 , G01T7/00 , G21K1/00
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4291 , G01N23/046 , G01N2223/419
摘要： The present invention, in one form, is a scatter collimator for a computed tomography system including an x-ray source. The scatter collimator is positioned between a detector array and an object to be imaged. The scatter collimator includes a housing, a plurality of attenuating blades and a plurality of attenuating wires. The blades and wires are mounted to the housing, and oriented substantially perpendicular to each other. Particularly, the blades and wires form a two-dimensional shielding grid. The blades also are oriented so that they are radially and focally aligned with the x-ray source. A detector element of the detector array is secured to the housing so that the blades and wires are between the detector element and the x-ray source. The detector element, in one form, includes a scintillation element which is coated with a light-retaining material.

2. 发明授权

US6134301A Collimator and detector for computed tomography systems 失效
标题翻译：用于计算机断层摄影系统的准直仪和检测器
公开(公告)号：US6134301A
公开(公告)日：2000-10-17
申请号：US102459
申请日：1998-06-22
申请人： Michael Thomas Mruzek , David M. Hoffman
发明人： Michael Thomas Mruzek , David M. Hoffman
IPC分类号： G01T1/20 , A61B6/03 , A61B6/06 , G01N23/04 , G01T7/00 , G21K1/02
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4291 , G01N23/046 , G01N2223/419
摘要： The present invention, in one form, is a scatter collimator for a computed tomography system including an x-ray source. The scatter collimator is positioned between a detector array and an object to be imaged. The scatter collimator includes a housing, a plurality of attenuating blades and a plurality of attenuating wires. The blades and wires are mounted to the housing, and oriented substantially perpendicular to each other. Particularly, the blades and wires form a two-dimensional shielding grid. The blades also are oriented so that they are radially and focally aligned with the x-ray source. A detector element of the detector array is secured to the housing so that the blades and wires are between the detector element and the x-ray source. The detector element, in one form, includes a scintillation element which is coated with a light-retaining material.
摘要翻译：本发明以一种形式是用于包括X射线源的计算机断层摄影系统的散射准直仪。散射准直仪位于检测器阵列和待成像对象之间。散射准直仪包括壳体，多个衰减叶片和多个衰减线。叶片和线被安装到壳体上并且基本上彼此垂直地定向。特别地，叶片和线形成二维屏蔽网格。叶片也被定向成使得它们与x射线源径向地和焦点地对准。检测器阵列的检测器元件固定到壳体上，使得刀片和线材位于检测器元件和X射线源之间。一种形式的检测器元件包括涂有光保持材料的闪烁元件。

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