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    Electron emitter assembly and method for adjusting a power level of electron beams
    11.
    发明授权
    Electron emitter assembly and method for adjusting a power level of electron beams 有权
    电子发射器组件和调整电子束功率电平的方法

    公开(公告)号：US07085350B2

    公开(公告)日：2006-08-01

    申请号：US10904284

    申请日：2004-11-02

    Applicant: Bruce Matthew Dunham ,  John Scott Price ,  Colin R. Wilson

    Inventor： Bruce Matthew Dunham ,  John Scott Price ,  Colin R. Wilson

    IPC: H01J35/00

    CPC classification number: H01J35/065 ,  H01J35/24 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/087

    Abstract: An electron emitter assembly and a method for adjusting a power level of an electron beam are provided. The electron emitter assembly includes a laser configured to emit a first light beam. The electron emitter assembly further includes a light-attenuating device configured to receive the first light beam and to attenuate the first light beam between a first light intensity and a second light intensity greater than the first light intensity. The electron emitter assembly further includes a photo-cathode configured to receive the first light beam from the light-attenuating device. The photo-cathode is further configured to emit a first electron beam having a first power level in response to receiving the first light beam having the first light intensity. The photo-cathode is further configured to emit a second electron beam having a second power level greater than the first power level in response to receiving the first light beam having the second light intensity. The electron emitter assembly further includes an anode configured to receive the first and second electrons beams from the photo-cathode.

    Abstract translation: 提供了一种用于调节电子束功率电平的电子发射器组件和方法。 电子发射器组件包括被配置为发射第一光束的激光器。 电子发射器组件还包括被配置为接收第一光束并且在第一光强度和大于第一光强度的第二光强度之间衰减第一光束的光衰减器件。 电子发射器组件还包括被配置为从光衰减装置接收第一光束的光阴极。 光阴极还被配置为响应于接收到具有第一光强度的第一光束而发射具有第一功率电平的第一电子束。 响应于接收到具有第二光强度的第一光束，光阴极还被配置为发射具有大于第一功率电平的第二功率电平的第二电子束。 电子发射器组件还包括被配置为从光阴极接收第一和第二电子束的阳极。

    SYSTEM AND METHOD OF FAST KVP SWITCHING FOR DUAL ENERGY CT
    13.
    发明申请
    SYSTEM AND METHOD OF FAST KVP SWITCHING FOR DUAL ENERGY CT 有权
    双能量CT快速KVP开关系统与方法

    公开(公告)号：US20100104062A1

    公开(公告)日：2010-04-29

    申请号：US12257658

    申请日：2008-10-24

    Applicant: Xiaoye Wu ,  David Langan ,  Colin R. Wilson ,  Yun Zou

    Inventor： Xiaoye Wu ,  David Langan ,  Colin R. Wilson ,  Yun Zou

    IPC: H05G1/56 ,  A61B6/00 ,  H01J35/06

    CPC classification number: H01J35/06 ,  H01J35/045 ,  H01J2235/068

    Abstract: A CT system includes a rotatable gantry having an opening for receiving an object to be scanned and an x-ray source coupled to the gantry and configured to project x-rays through the opening. The x-ray source includes a target, a first cathode configured to emit a first beam of electrons toward the target, a first gridding electrode coupled to the first cathode, a second cathode configured to emit a second beam of electrons toward the target, and a second gridding electrode coupled to the second cathode. The system includes a generator configured to energize the first cathode to a first kVp and to energize the second cathode to a second kVp, and a detector attached to the gantry and positioned to receive x-rays that pass through the opening. The system also includes a controller configured to apply a gridding voltage to the first gridding electrode to block emission of the first beam of electrons toward the target, apply the gridding voltage to the second gridding electrode to block emission of the second beam of electrons toward the target, and acquire dual energy imaging data from the detector.

    Abstract translation: CT系统包括可旋转机架，其具有用于接收待扫描物体的开口和耦合到台架的x射线源，并且被配置成通过开口投影X射线。 x射线源包括目标，被配置为朝向目标发射第一电子束的第一阴极，耦合到第一阴极的第一网格电极，被配置为向靶发射第二电子束的第二阴极，以及 耦合到第二阴极的第二栅极电极。 该系统包括发电机，其被配置为将第一阴极激励到第一kVp并且将第二阴极激励到第二kVp，以及附接到台架并被定位成接收穿过开口的x射线的检测器。 该系统还包括：控制器，被配置为向第一格栅电极施加网格化电压，以阻止第一电子束朝向目标的发射，将网格化电压施加到第二格栅电极，以阻止第二电子束朝向 目标，并从检测器获取双能量成像数据。

    APPARATUS FOR PROVIDING COLLIMATION IN A MULTISPOT X-RAY SOURCE AND METHOD OF MAKING SAME
    14.
    发明申请
    APPARATUS FOR PROVIDING COLLIMATION IN A MULTISPOT X-RAY SOURCE AND METHOD OF MAKING SAME 有权
    用于在多个X射线源中提供收集的装置及其制造方法

    公开(公告)号：US20100098219A1

    公开(公告)日：2010-04-22

    申请号：US12252609

    申请日：2008-10-16

    Applicant: Mark E. Vermilyea ,  Colin R. Wilson ,  Yun Zou

    Inventor： Mark E. Vermilyea ,  Colin R. Wilson ,  Yun Zou

    IPC: G21K1/02

    CPC classification number: G21K1/025 ,  H01J35/04 ,  H01J35/08 ,  H01J35/16 ,  H01J2235/086 ,  H01J2235/1204 ,  H01J2235/1262

    Abstract: A collimator includes a first plate having an aperture therein, the aperture configured to allow passage of a beam of x-rays from a source of a multi-spot source therethrough, and a second plate parallelly positioned with respect to the first plate and configured to receive and attenuate a first portion of the beam of x-rays passing through the aperture in the first plate, the second plate having an aperture therein configured to non-concentrically overlap the aperture in the first plate, to receive a second portion of the beam of x-rays passing through the aperture in the first plate, and to allow passage of the second portion of the beam of x-rays therethrough. A portion of the aperture in the first plate and a portion of the aperture in the second plate form a composite aperture parallel to the beam of x-rays, the composite aperture configured to allow passage of the second portion of the beam of x-rays through the first and second plates.

    Abstract translation: 准直器包括其中具有孔的第一板，所述孔构造成允许来自多点源的源的X射线束通过其中，并且相对于第一板平行定位的第二板被配置为 接收和衰减穿过第一板中的孔的X射线束的第一部分，第二板具有其中构造成与第一板中的孔不同心重叠的孔，以接收梁的第二部分 的X射线通过第一板中的孔，并且允许X射线束的第二部分通过其中。 第一板中的孔的一部分和第二板中的孔的一部分形成平行于X射线束的复合孔，复合孔构造成允许X射线束的第二部分通过 通过第一和第二板。

    Electron emitter assembly and method for adjusting a size of electron beams
    17.
    发明授权
    Electron emitter assembly and method for adjusting a size of electron beams 失效
    电子发射器组件和调整电子束尺寸的方法

    公开(公告)号：US07136455B2

    公开(公告)日：2006-11-14

    申请号：US10904286

    申请日：2004-11-02

    Applicant: Bruce Matthew Dunham ,  John Scott Price ,  Colin R. Wilson

    Inventor： Bruce Matthew Dunham ,  John Scott Price ,  Colin R. Wilson

    IPC: H05G2/00

    CPC classification number: H01J35/065 ,  A61B6/032 ,  A61B6/4028

    Abstract: An electron emitter assembly and a method for adjusting a size of electron beams are provided. The electron emitter assembly includes a laser configured to emit a first light beam. The electron emitter assembly further includes a lens assembly configured to receive the first light beam. The lens assembly is configured to adjust a size of the first light beam between a first predetermined size and a second predetermined size larger than the first predetermined size. The lens assembly emits the first light beam toward a photo-cathode. The photo-cathode is configured to emit a first electron beam having a third predetermined size when the first light beam having the first predetermined size contacts the photo-cathode. The photo-cathode is further configured to emit a second electron beam having a fourth predetermined size when the first light beam having the second predetermined size contacts the photo-cathode. The electron emitter assembly further includes an anode configured to receive the first and second electrons beams from the photo-cathode.

    Abstract translation: 提供了一种用于调整电子束尺寸的电子发射器组件和方法。 电子发射器组件包括被配置为发射第一光束的激光器。 电子发射器组件还包括被配置为接收第一光束的透镜组件。 透镜组件被配置为在第一预定尺寸和大于第一预定尺寸的第二预定尺寸之间调整第一光束的尺寸。 透镜组件朝向光阴极发射第一光束。 当具有第一预定尺寸的第一光束接触光阴极时，光阴极被配置为发射具有第三预定尺寸的第一电子束。 当具有第二预定尺寸的第一光束接触光阴极时，光阴极还被配置为发射具有第四预定尺寸的第二电子束。 电子发射器组件还包括被配置为从光阴极接收第一和第二电子束的阳极。

    X-ray source and method having cathode with curved emission surface
    19.
    发明授权
    X-ray source and method having cathode with curved emission surface 有权
    具有弯曲发射表面的阴极的X射线源和方法

    公开(公告)号：US06760407B2

    公开(公告)日：2004-07-06

    申请号：US10124864

    申请日：2002-04-17

    Applicant: J. Scott Price ,  Bruce M. Dunham ,  Colin R. Wilson

    Inventor： J. Scott Price ,  Bruce M. Dunham ,  Colin R. Wilson

    IPC: H01L3506

    CPC classification number: H01J35/24 ,  H01J35/065

    Abstract: An X-ray source comprises a cold cathode and an anode. The cold cathode has a curved emission surface capable of emitting electrons. The anode is spaced apart from the cathode. The anode is capable of emitting X-rays in response to being bombarded with electrons emitted from the curved emission surface of the cathode.

    Abstract translation: X射线源包括冷阴极和阳极。 冷阴极具有能够发射电子的弯曲发射表面。 阳极与阴极间隔开。 阳极能够响应于从阴极的弯曲发射表面发射的电子轰击而发射X射线。

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