-
公开(公告)号：US20100264917A1
公开(公告)日：2010-10-21
申请号：US12753306
申请日：2010-04-02
申请人： Dmitry Budker , Alexander Pines , Shoujun Xu , Christian Hilty , Micah P. Ledbetter , Louis S. Bouchard
发明人： Dmitry Budker , Alexander Pines , Shoujun Xu , Christian Hilty , Micah P. Ledbetter , Louis S. Bouchard
CPC分类号： G01R33/093 , B82Y25/00 , E03F3/046 , G01N24/08 , G01R33/302 , G01R33/307 , G01R33/323 , G01R33/36 , G01R33/44 , G01R33/50 , G01R33/5602 , G01R33/56375
摘要： A method and apparatus are described wherein a micro sample of a fluidic material may be assayed without sample contamination using NMR techniques, in combination with magnetoresistive sensors. The fluidic material to be assayed is first subject to pre-polarization, in one embodiment, by passage through a magnetic field. The magnetization of the fluidic material is then subject to an encoding process, in one embodiment an rf-induced inversion by passage through an adiabatic fast-passage module. Thereafter, the changes in magnetization are detected by a pair of solid-state magnetoresistive sensors arranged in gradiometer mode. Miniaturization is afforded by the close spacing of the various modules.
摘要翻译： 描述了一种方法和装置，其中可以使用NMR技术结合磁阻传感器来测定流体材料的微样品而不使用样品污染。 要测定的流体物质首先经过预极化，在一个实施方案中，通过磁场。 然后流体材料的磁化受到编码过程，在一个实施方案中，通过通过绝热快速通道模块的rf诱导的反转。 此后，通过以梯度计模式布置的一对固态磁阻传感器来检测磁化的变化。 通过各种模块的紧密间隔提供小型化。
-
公开(公告)号：US20100244828A1
公开(公告)日：2010-09-30
申请号：US12675604
申请日：2008-08-29
IPC分类号： G01R33/48
CPC分类号： G01R33/3808 , G01R33/383
摘要： System and methods for designing and using single-sided magnet assemblies for magnetic resonance imaging (MRI) are disclosed. The single-sided magnet assemblies can include an array of permanent magnets disposed at selected positions. At least one of the permanent magnets can be configured to rotate about an axis of rotation in the range of at least +/−10 degrees and can include a magnetization having a vector component perpendicular to the axis of rotation. The single-sided magnet assemblies can further include a magnet frame that is configured to hold the permanent magnets in place while allowing the at least one of the permanent magnets to rotate about the axis of rotation.
摘要翻译： 公开了用于设计和使用用于磁共振成像（MRI）的单面磁体组件的系统和方法。 单面磁体组件可以包括设置在选定位置的永磁体阵列。 永磁体中的至少一个可以被配置为围绕至少+/- 10度的范围内的旋转轴线旋转，并且可以包括具有垂直于旋转轴线的矢量分量的磁化。 单面磁体组件还可以包括磁体框架，该磁体框架构造成将永磁体保持在适当位置，同时允许永磁体中的至少一个围绕旋转轴线旋转。
-
公开(公告)号：US08547095B2
公开(公告)日：2013-10-01
申请号：US12753306
申请日：2010-04-02
申请人： Dmitry Budker , Alexander Pines , Shoujun Xu , Christian Hilty , Micah P. Ledbetter , Louis S. Bouchard
发明人： Dmitry Budker , Alexander Pines , Shoujun Xu , Christian Hilty , Micah P. Ledbetter , Louis S. Bouchard
IPC分类号： G01V3/00
CPC分类号： G01R33/093 , B82Y25/00 , E03F3/046 , G01N24/08 , G01R33/302 , G01R33/307 , G01R33/323 , G01R33/36 , G01R33/44 , G01R33/50 , G01R33/5602 , G01R33/56375
摘要： A method and apparatus are described wherein a micro sample of a fluidic material may be assayed without sample contamination using NMR techniques, in combination with magnetoresistive sensors. The fluidic material to be assayed is first subject to pre-polarization, in one embodiment, by passage through a magnetic field. The magnetization of the fluidic material is then subject to an encoding process, in one embodiment an rf-induced inversion by passage through an adiabatic fast-passage module. Thereafter, the changes in magnetization are detected by a pair of solid-state magnetoresistive sensors arranged in gradiometer mode. Miniaturization is afforded by the close spacing of the various modules.
摘要翻译： 描述了一种方法和装置，其中可以使用NMR技术结合磁阻传感器来测定流体材料的微样品而不使用样品污染。 要测定的流体物质首先经过预极化，在一个实施方案中，通过磁场。 流体材料的磁化然后进行编码过程，在一个实施方案中，通过通过绝热快速通道模块的rf诱导的反转。 此后，通过以梯度计模式布置的一对固态磁阻传感器来检测磁化的变化。 通过各种模块的紧密间隔提供小型化。
-
公开(公告)号：US08570042B2
公开(公告)日：2013-10-29
申请号：US12675604
申请日：2008-08-29
CPC分类号： G01R33/3808 , G01R33/383
摘要： System and methods for designing and using single-sided magnet assemblies for magnetic resonance imaging (MRI) are disclosed. The single-sided magnet assemblies can include an array of permanent magnets disposed at selected positions. At least one of the permanent magnets can be configured to rotate about an axis of rotation in the range of at least +/−10 degrees and can include a magnetization having a vector component perpendicular to the axis of rotation. The single-sided magnet assemblies can further include a magnet frame that is configured to hold the permanent magnets in place while allowing the at least one of the permanent magnets to rotate about the axis of rotation.
摘要翻译： 公开了用于设计和使用用于磁共振成像（MRI）的单面磁体组件的系统和方法。 单面磁体组件可以包括设置在选定位置的永磁体阵列。 永磁体中的至少一个可以被配置为围绕至少+/- 10度的范围内的旋转轴线旋转，并且可以包括具有垂直于旋转轴线的矢量分量的磁化。 单面磁体组件还可以包括磁体框架，该磁体框架构造成将永磁体保持在适当位置，同时允许永磁体中的至少一个围绕旋转轴线旋转。
-
-
-
搜索结果
4 条记录 (耗时 0.014 秒)
