-
公开(公告)号：US10024999B1
公开(公告)日：2018-07-17
申请号：US15688113
申请日：2017-08-28
摘要： A detector assembly includes a scintillator configured to generate a light signal in response to an impinging radiation signal from an object, where the scintillator has a first end and a second end. Further, the detector assembly includes a first detector disposed adjacent the scintillator and configured to receive a first portion of the light signal from the scintillator and a second detector operatively coupled to the second end of the scintillator and configured to receive a second portion of the light signal from the scintillator. The detector assembly also includes a reflector operatively coupled to the scintillator and the first detector and configured to guide the light signal from the scintillator to the first detector, where the reflector is configured to redirect the first portion of the light signal by a determined amount to reduce a path length between a radiation source, the object, and the scintillator.
-
公开(公告)号：US20170372863A1
公开(公告)日：2017-12-28
申请号：US15195654
申请日：2016-06-28
发明人： John Scott Price , Xi Zhang
摘要： A cathode assembly design is provided that includes two flat emitters, a longer emitter filament and a shorter emitter filament. In one implementation the focal spot sizes produced by the long and short emitters overlap over a range. Thus, one emitter filament may be suitable for generating small and concentrated focal spot sizes while the other emitter filament is suitable for generating small and large focal spots sizes.
-
13.发明申请公开(公告)号：US20190283169A1
公开(公告)日：2019-09-19
申请号：US15919771
申请日：2018-03-13
发明人： Vladimir Anatolievich Lobastov , Vincent Scott Smentkowski , John Scott Price , Vance Scott Robinson
摘要： A system and method for monitoring and controlling build quality during electron beam manufacturing of a build part. The system may include at least one electron beam source to direct at least one electron beam onto a plurality of deposited layers of metallic powder to form a melt pool, a detector to detect in real-time backscattered energy ejected from the melt pool and indicative of a defect in the build part and generate a detection signal representative of the defect. A controller receives and analyzes the detection signal and generates a corrective signal for control of at least one of the actuator and the at least one electron beam source to direct the at least one electron beam onto the plurality of deposited layers of metallic powder to sequentially consolidate patterned portions of the plurality of deposited metallic powder layers to adaptively form the three-dimensional build part.
-
公开(公告)号：US20190063208A1
公开(公告)日：2019-02-28
申请号：US15688102
申请日：2017-08-28
发明人： Ansas Matthias Kasten , Juan Pablo Cilia , John Scott Price , William Robert Ross , Chengbao Wang , Sudeep Mandal
摘要： An apparatus for inspecting integrity of a multi-barrier wellbore is described. The apparatus includes at least one source to generate radiation to impinge a target volume of the wellbore. The apparatus includes a source collimator having a plurality of alternating blocking channels and passing channels to direct radiation to impinge the target volume, such that the radiation directed from each passing channel forms a plurality of field of views extending radially into the target volume. The apparatus further includes at least one detector to receive backscatter rays arising from each respective field of view from the plurality of field of views and to generate an image representative of an inspected portion of the wellbore. The apparatus is useful for inspecting very small volumes in the multiple barriers of the wellbore and determine the integrity of the wellbore based on the different densities in the image of the inspected portion.
-
公开(公告)号：US09953797B2
公开(公告)日：2018-04-24
申请号：US14867396
申请日：2015-09-28
摘要： A flat emitter configured for use in an X-ray tube is presented. The X-ray tube includes a first conductive section including a first terminal. Further, the X-ray tube includes a second conductive section including a second terminal. Also, the X-ray tube includes a third conductive section disposed between the first conductive section and the second conductive section, wherein the third conductive section is configured to emit electrons toward a determined focal spot, and wherein the third conductive section includes a plurality of slits subdividing the third conductive section into a winding track coupled to the first conductive section and the second conductive section, wherein at least two of the plurality of slits are interwound spirally to compose the winding track, and wherein the winding track is configured to expand and contract based on heat provided to the third conductive section.
-
公开(公告)号：US20170092456A1
公开(公告)日：2017-03-30
申请号：US14867396
申请日：2015-09-28
摘要： A flat emitter configured for use in an X-ray tube is presented. The X-ray tube includes a first conductive section including a first terminal. Further, the X-ray tube includes a second conductive section including a second terminal. Also, the X-ray tube includes a third conductive section disposed between the first conductive section and the second conductive section, wherein the third conductive section is configured to emit electrons toward a determined focal spot, and wherein the third conductive section includes a plurality of slits subdividing the third conductive section into a winding track coupled to the first conductive section and the second conductive section, wherein at least two of the plurality of slits are interwound spirally to compose the winding track, and wherein the winding track is configured to expand and contract based on heat provided to the third conductive section.
-
公开(公告)号：US20160061991A1
公开(公告)日：2016-03-03
申请号：US14470348
申请日：2014-08-27
发明人： Ertugrul Berkcan , John Scott Price , Edward James Nieters , William Robert Ross , Clifford Bueno , Yuri Alexeyevich Plotnikov , Susanne Madeline Lee
IPC分类号： G01V5/14
CPC分类号： G01V5/145
摘要： A well integrity inspection system configured to inspect a well structure including multiple concentric layers. The well integrity inspection system includes an inspection probe positioned in the well structure. The inspection probe includes a plurality of excitation assemblies for transmitting a plurality of radiation emissions into the well structure. The plurality of excitation assemblies includes at least a neutron excitation assembly and an X-ray excitation assembly. The inspection probe also includes a plurality of detection assemblies configured to receive a plurality of backscatter radiation returns from the well structure. The plurality of detection assemblies includes at least a neutron detection assembly and an X-ray detection assembly. The well integrity inspection system further including a processor operatively coupled to the inspection probe. The processor is configured to determine a well integrity parameter of the well structure based on at least one of the plurality of backscatter radiation returns.
摘要翻译： 一种良好完整性检查系统，其被配置为检查包括多个同心层的井结构。 井完整性检查系统包括位于井结构中的检查探针。 检查探针包括用于将多个辐射发射物传输到井结构中的多个激发组件。 多个激励组件至少包括中子激发组件和X射线激发组件。 检查探针还包括多个检测组件，其被配置为从井结构接收多个反向散射辐射返回。 多个检测组件至少包括中子检测组件和X射线检测组件。 井完整性检查系统还包括可操作地耦合到检查探针的处理器。 处理器被配置为基于多个反向散射辐射返回中的至少一个来确定井结构的井完整性参数。
-
公开(公告)号：US09224572B2
公开(公告)日：2015-12-29
申请号：US13718672
申请日：2012-12-18
CPC分类号： H01J35/14 , H01J35/045
摘要： An X-ray tube assembly is provided including an emitter configured to emit an electron beam, an emitter focusing electrode, an extraction electrode, and a downstream focusing electrode. The emitter focusing electrode is disposed proximate to the emitter and outward of the emitter in an axial direction. The extraction electrode is disposed downstream of the emitter and the emitter focusing electrode. The extraction electrode has a negative bias voltage setting at which the extraction electrode has a negative bias voltage with respect to the emitter. The downstream focusing electrode is disposed downstream of the extraction electrode, and has a positive bias voltage with respect to the emitter. When the extraction electrode is at the negative bias voltage setting, the electron beam is emitted from an emission area that is smaller than a maximum emission area from which electrons may be emitted.
摘要翻译： 提供了包括发射电子束的发射极，发射极聚焦电极，引出电极和下游聚焦电极的X射线管组件。 发射极聚焦电极在轴向方向上靠近发射极和发射极的外侧设置。 引出电极设置在发射极和发射极聚焦电极的下游。 提取电极具有负偏置电压设置，在该设置下，引出电极相对于发射极具有负偏置电压。 下游聚焦电极设置在引出电极的下游，并且相对于发射极具有正偏置电压。 当提取电极处于负偏置电压设置时，电子束从小于可从其发射电子的最大发射区域的发射区域发射。
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.02 秒)