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公开(公告)号：US09031189B2
公开(公告)日：2015-05-12
申请号：US13522474
申请日：2011-01-27
摘要： An X-ray imaging apparatus acquiring a differential phase contrast image of a test object without using a light-shielding mask for X-ray. The apparatus includes an X-ray source, a splitting element configured to spatially divide an X-ray emitted from an X-ray source and a scintillator configured to emit light when a divided X-ray beam divided at the splitting element is incident on the scintillator. The apparatus also includes a light-transmission limiting unit configured to limit transmitting amount of the light emitted from the scintillator and a plurality of light detectors each configured to detect the amount of light that has transmitted through the light-transmission limiting unit. The light-transmission limiting unit is configured such that a light intensity detected at each of the light detectors changes in response to a change in an incident position of the X-ray beam.
摘要翻译： 一种X射线成像装置，在不使用用于X射线的遮光掩模的情况下获取被测物体的差分相位差图像。 该装置包括X射线源，分配元件，被配置为空间上划分从X射线源发射的X射线;以及闪烁器，其被配置为当分裂元件分割的分割的X射线束入射到所述X射线源时发光 闪烁体。 该装置还包括：光限制单元，被配置为限制从闪烁体发射的光的发射量;以及多个光检测器，每个光检测器被配置为检测透射通过光传输限制单元的光量。 光传输限制单元被配置为使得在每个光检测器处检测到的光强度响应于X射线束的入射位置的变化而变化。
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公开(公告)号：US20110194674A1
公开(公告)日：2011-08-11
申请号：US13058889
申请日：2010-11-29
IPC分类号： G01N23/04 , G01N23/083
CPC分类号： G01N23/046 , A61B6/06 , A61B6/484 , G01N2223/419
摘要： An X-ray imaging apparatus and an X-ray imaging method can alleviate the influence of scattered X-rays relative to the obtained image. A differential phase contrast image or a phase contrast image of a detection object is computed by using a splitting element and an exposure control unit that synchronizes the X-ray scanning speed and the image acquisition speed of a detecting unit.
摘要翻译： X射线成像装置和X射线成像方法可以减轻散射X射线相对于所获得的图像的影响。 通过使用与检测单元的X射线扫描速度和图像获取速度同步的分割元件和曝光控制单元来计算检测对象的差分相位差图像或相位对比图像。
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公开(公告)号：US08532257B2
公开(公告)日：2013-09-10
申请号：US13058889
申请日：2010-11-29
IPC分类号： G01N23/04
CPC分类号： G01N23/046 , A61B6/06 , A61B6/484 , G01N2223/419
摘要： An X-ray imaging apparatus and an X-ray imaging method can alleviate the influence of scattered X-rays relative to the obtained image. A differential phase contrast image or a phase contrast image of a detection object is computed by using a splitting element and an exposure control unit that synchronizes the X-ray scanning speed and the image acquisition speed of a detecting unit.
摘要翻译： X射线成像装置和X射线成像方法可以减轻散射X射线相对于所获得的图像的影响。 通过使用与检测单元的X射线扫描速度和图像获取速度同步的分割元件和曝光控制单元来计算检测对象的差分相位差图像或相位对比图像。
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公开(公告)号：US20120294421A1
公开(公告)日：2012-11-22
申请号：US13522474
申请日：2011-01-27
摘要： An X-ray imaging apparatus acquiring a differential phase contrast image of a test object without using a light-shielding mask for X-ray. The apparatus includes an X-ray source, a splitting element configured to spatially divide an X-ray emitted from an X-ray source and a scintillator configured to emit light when a divided X-ray beam divided at the splitting element is incident on the scintillator. The apparatus also includes a light-transmission limiting unit configured to limit transmitting amount of the light emitted from the scintillator and a plurality of light detectors each configured to detect the amount of light that has transmitted through the light-transmission limiting unit. The light-transmission limiting unit is configured such that a light intensity detected at each of the light detectors changes in response to a change in an incident position of the X-ray beam.
摘要翻译： 一种X射线成像装置，在不使用用于X射线的遮光掩模的情况下获取被测物体的差分相位差图像。 该装置包括X射线源，分配元件，被配置为空间上划分从X射线源发射的X射线;以及闪烁器，其被配置为当分裂元件分割的分割的X射线束入射到所述X射线源时发光 闪烁体。 该装置还包括：光限制单元，被配置为限制从闪烁体发射的光的发射量;以及多个光检测器，每个光检测器被配置为检测透射通过光传输限制单元的光量。 光传输限制单元被配置为使得在每个光检测器处检测到的光强度响应于X射线束的入射位置的变化而变化。
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公开(公告)号：US09103923B2
公开(公告)日：2015-08-11
申请号：US13121776
申请日：2010-07-23
IPC分类号： G01T1/202 , G01N23/223 , G01T1/164
CPC分类号： G01T1/202 , G01N23/223 , G01N2223/076 , G01T1/1641
摘要： An X-ray imaging apparatus and an X-ray imaging method for use in the X-ray imaging apparatus are provided. The X-ray imaging apparatus includes a separating element configured to spatially separate an X-ray generated by an X-ray generator unit and a scintillator array including a plurality of first scintillators arranged therein, where the separated X-rays are made incident on the first scintillators. Each of the first scintillators is configured to vary an intensity of fluorescence induced by the X-ray in accordance with an incident position of the X-ray. The X-ray imaging apparatus further includes a detector configured to detect the intensity of fluorescence emitted from the scintillator array.
摘要翻译： 提供了用于X射线成像装置的X射线成像装置和X射线成像方法。 X射线成像装置包括：分离元件，其被配置为在空间上分离由X射线发生器单元产生的X射线和包括多个第一闪烁体的闪烁体阵列，其中分离的X射线入射到 第一个闪烁器。 每个第一闪烁体被配置为根据X射线的入射位置改变由X射线诱发的荧光强度。 X射线成像装置还包括检测器，其被配置为检测从闪烁体阵列发射的荧光的强度。
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公开(公告)号：US09042517B2
公开(公告)日：2015-05-26
申请号：US13643260
申请日：2011-04-19
IPC分类号： G01N23/04
CPC分类号： G01N23/046 , G01N2223/419
摘要： To provide an X-ray imaging apparatus capable of easily adjusting the sensitivity or capable of easily extracting the amount of refraction of X-rays.An X-ray imaging apparatus irradiating an object to be measured with an X-ray beam from an X-ray source that generates X-rays of a first energy and X-rays of a second energy different from the first energy to measure an image of the object to be measured includes an attenuator and a detector. The attenuator attenuates the X-ray beam transmitted through the object to be measured and is configured so as to vary the amount of attenuation of the X-rays depending on a position on which the X-ray beam is incident. The detector detects the X-ray beam transmitted through the attenuator and is configured so as to detect the X-rays of the first energy and the second energy.
摘要翻译： 为了提供能够容易地调节灵敏度或能够容易地提取X射线折射率的X射线摄像装置。 一种X射线成像设备，用来自X射线源的X射线束照射待测物体，该X射线源产生第一能量的X射线和与第一能量不同的第二能量的X射线以测量图像 要测量的对象包括衰减器和检测器。 衰减器衰减通过被测量物体透射的X射线束，并且被配置为根据X射线束入射的位置来改变X射线的衰减量。 检测器检测通过衰减器传输的X射线束，并被配置为检测第一能量和第二能量的X射线。
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公开(公告)号：US08588366B2
公开(公告)日：2013-11-19
申请号：US13060739
申请日：2009-10-19
IPC分类号： G01N23/04
CPC分类号： G01N23/046 , A61B6/032 , A61B6/484 , G01N2223/419 , G01T1/00 , G21K2207/005
摘要： An X-ray imaging apparatus for obtaining information on a phase shift of an X-ray caused by an object comprises: an splitting element for splitting spatially an X-ray emitted from an X-ray generator unit into X-ray beams; an attenuator unit having an arrangement of attenuating elements for receiving the X-ray beams split by the splitting element; and an intensity detector unit for detecting intensities of X-ray beams attenuated by the attenuator unit; and the attenuating element changing continuously the transmission amount of the X-ray depending on the X-ray incident position on the element.
摘要翻译： 一种用于获得由对象引起的X射线的相移的信息的X射线成像装置，包括：分割元件，用于将从X射线发生器单元发射的X射线空间分割成X射线束; 衰减器单元，具有用于接收由分离元件分裂的X射线束的衰减元件的布置; 以及强度检测器单元，用于检测衰减器单元衰减的X射线束的强度; 并且衰减元件根据元件上的X射线入射位置连续地改变X射线的透射量。
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公开(公告)号：US08509382B2
公开(公告)日：2013-08-13
申请号：US13125877
申请日：2010-06-09
IPC分类号： G01N23/06
CPC分类号： G01N23/04 , A61B6/032 , A61B6/06 , A61B6/4233 , A61B6/484 , G21K1/06 , G21K2207/005
摘要： The invention is aimed to provide an X-ray imaging apparatus and the like ensuring a sufficient range of detecting the amount of X-ray movement with respect to the pixel size of a detector in comparison with the method disclosed in International Publication No. WO2008/029107. The X-ray imaging apparatus of the present invention has a splitting element which spatially linearly splits an X-ray; and a shielding unit which shields a part of the X-ray which is split by the splitting element and whose position is changed by a test object. The shielding unit has a region transmitting an X-ray and a region having a shielding element shielding an X-ray. A dividing line between the X-ray transmitting region and the region having the shielding element is configured to be arranged obliquely so as to cross the linearly split X-ray.
摘要翻译： 本发明的目的在于提供一种X射线摄像装置等，其与国际公开第WO2008 / 00号公报中公开的方法相比，确保相对于检测器的像素尺寸检测X射线移动量的足够范围， 029107。 本发明的X射线成像装置具有空间线性分割X射线的分离元件; 以及屏蔽单元，其屏蔽由所述分离元件分裂并且其位置被测试对象改变的所述X射线的一部分。 屏蔽单元具有透射X射线的区域和具有屏蔽X射线的屏蔽元件的区域。 X射线透射区域和具有屏蔽元件的区域之间的分界线被配置为倾斜地布置成与线分割X射线交叉。
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公开(公告)号：US20110103549A1
公开(公告)日：2011-05-05
申请号：US12993083
申请日：2010-01-15
IPC分类号： G01N23/04
CPC分类号： G21K1/06 , A61B6/484 , G21K2207/005
摘要： Provided is an X-ray imaging apparatus and a method of X-ray imaging, with which the apparatus can be reduced in size and a differential phase image or a phase image with consideration of an X-ray absorption effect of an object can be obtained.X-rays are spatially split, and a first attenuation element in which the transmission amount of X-rays continuously changes in accordance with the displacement when the X-rays pass through an object is used. Transmittance is calculated by using the first attenuation element and a second attenuation element that is different from the first attenuation element with respect to an amount of change or a characteristic of change in the transmission amount of X-rays in a direction of a displacement of the X-rays. A differential phase image and the like of the object are calculated using the transmittance.
摘要翻译： 提供了可以获得X射线成像装置和X射线成像方法，通过该X射线成像装置和X射线成像方法，可以减小装置的尺寸，并且可以获得考虑到物体的X射线吸收效果的差分相位图像或相位图像 。 X射线被空间分割，并且使用其中X射线的透射量根据当X射线通过物体时的位移而连续变化的第一衰减元件。 通过使用第一衰减元件和与第一衰减元件不同的第二衰减元件相对于X射线的位移方向上的X射线透射量的变化量或特性的变化来计算透射率 X光片。 使用透射率来计算对象的差分相位图像等。
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公开(公告)号：US08908829B2
公开(公告)日：2014-12-09
申请号：US13581498
申请日：2011-02-23
CPC分类号： G01T1/00 , A61B6/485 , G01N23/02 , G01N2223/505 , G01N2223/646 , G01T1/20 , G21K4/00
摘要： Provided is an X-ray imaging apparatus and an X-ray imaging method that offer an alternative for a refraction contrast method.A first scintillator and a second scintillator are used, the first scintillator generating first fluorescent light when X-rays separated by the separating element are incident thereon, and a second scintillator generating second fluorescent light when X-rays separated by the separating element are incident thereon. The second scintillator has a fluorescence emission intensity gradient such that an amount of emitted fluorescent light changes in accordance with a change in a position at which the X-rays are incident.
摘要翻译： 提供了提供折射对比度方法的替代方案的X射线成像装置和X射线成像方法。 使用第一闪烁器和第二闪烁体，当由分离元件分离的X射线入射时，第一闪烁体产生第一荧光，当由分离元件分离的X射线入射时产生第二荧光的第二闪烁体 。 第二闪烁体具有荧光发射强度梯度，使得发射的荧光的量根据X射线入射的位置的变化而改变。
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