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公开(公告)号：US10357848B2
公开(公告)日：2019-07-23
申请号：US14599612
申请日：2015-01-19
发明人： Hongqiang Chen , Steven Robert Hayashi , Xi Zhang
摘要： A laser machining method includes directing, from an F-theta lens having a long focal length of greater than about 250 millimeters, a laser beam at a non-perpendicular beam tilt angle from an optical axis of the lens having a top-hat profile and a narrow beam divergence angle of between about 1 degree and about 3 degrees towards a workpiece on a stage movable in at least an X-direction and a Y-direction, engaging the directed laser beam with the workpiece disposed in the usable field of view, moving the workpiece and the directed laser beam relative to each other, and removing portions of the workpiece with the directed laser beam to define a machined surface.
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公开(公告)号：US11420288B2
公开(公告)日：2022-08-23
申请号：US16426414
申请日：2019-05-30
发明人： Hongqiang Chen , Steven Robert Hayashi , Xi Zhang
IPC分类号： B23K26/36 , B23K26/38 , B23K26/064 , B23K26/06 , B23K26/04 , B23K26/08 , B23K26/40 , B23K103/00
摘要： A laser machining method includes directing, from an F-theta lens having a long focal length of greater than about 250 millimeters, a laser beam at a non-perpendicular beam tilt angle from an optical axis of the lens having a top-hat profile and a narrow beam divergence angle of between about 1 degree and about 3 degrees towards a workpiece on a stage movable in at least an X-direction and a Y-direction, engaging the directed laser beam with the workpiece disposed in the usable field of view, moving the workpiece and the directed laser beam relative to each other, and removing portions of the workpiece with the directed laser beam to define a machined surface.
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公开(公告)号：US10373792B2
公开(公告)日：2019-08-06
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.
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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.
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公开(公告)号：US09443691B2
公开(公告)日：2016-09-13
申请号：US14144187
申请日：2013-12-30
发明人： Vance Scott Robinson , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Sergiy Zalyubovskiy , Xi Zhang
IPC分类号： H01J35/06 , H01J29/48 , H01J29/04 , H01L23/367 , H01L23/373 , H01J3/26 , H01J29/00 , H01L33/44 , H01L33/64 , H01L23/31 , H01J1/14 , H01J1/15
CPC分类号： H01J29/484 , H01J1/14 , H01J1/15 , H01J3/26 , H01J29/006 , H01J29/04 , H01J29/485 , H01J35/06 , H01L23/3178 , H01L23/367 , H01L23/373 , H01L23/3736 , H01L23/3738 , H01L33/44 , H01L33/641 , H01L33/642 , H01L2924/0002 , Y10T428/24612 , Y10T428/24802 , Y10T428/24826 , Y10T428/24942 , Y10T428/2495 , H01L2924/00
摘要： Embodiments of the disclosure relate to electron emitters for use in conjunction with X-ray emitting devices. In certain embodiments the emitter includes features that prevent, limit, or control deflection of the electron emitter at operating temperatures. In this manner, the electron emitter may be kept substantially flat or at a desired curvature during operation.
摘要翻译： 本公开的实施例涉及与X射线发射装置结合使用的电子发射器。 在某些实施例中，发射器包括防止，限制或控制电子发射器在工作温度下的偏转的特征。 以这种方式，电子发射器可以在操作期间保持基本上平坦或处于期望的曲率。
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6.发明申请TARGET BODY FOR AN ISOTOPE PRODUCTION SYSTEM AND METHOD OF USING THE SAME 审中-公开用于同种异体生产系统的目标体及其使用方法公开(公告)号：US20160141062A1
公开(公告)日：2016-05-19
申请号：US14547898
申请日：2014-11-19
IPC分类号： G21G1/10
CPC分类号： G21G1/10 , H05H6/00 , H05H2277/116
摘要： In accordance with one exemplary embodiment, a target body of a target system for an isotope production system is disclosed. The target body includes a target chamber having a first chamber with a first surface area and a second chamber with a second surface area greater than the first surface area. The first chamber is configured to hold a liquid target medium for bombardment by a charged particle beam. A component is coupled to the target body and configured to generate a radioactivity.
摘要翻译： 根据一个示例性实施例，公开了一种用于同位素生产系统的目标系统的目标体。 目标体包括具有第一腔室和第二腔室的目标腔室，第一腔室具有大于第一表面区域的第二表面积。 第一室被配置为保持用于通过带电粒子束进行轰击的液体目标介质。 组件耦合到目标主体并被配置成产生放射性。
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公开(公告)号：US20150023468A1
公开(公告)日：2015-01-22
申请号：US13943857
申请日：2013-07-17
发明人： Yun Zou , Scott Stephen Zelakiewicz , Fengfeng Tao , Xi Zhang , Timothy Powers , Thomas Edmund Sjoberg , Marc Weasler , Denis Perrillat-Amede
CPC分类号： A61B6/4405
摘要： A portable x-ray system includes a light weight x-ray head including an x-ray tube and a high voltage (HV) tank, wherein the HV tank comprises a compact voltage multiplier configured to receive a low voltage signal and generate a high voltage signal based on the received low voltage signal. Also, the portable x-ray system includes a carrying case comprising low voltage power electronics coupled to the light weight x-ray head through a low voltage cable, and configured to send the low voltage signal to the light weight x-ray head. In addition, the low voltage power electronics is distributed in a predefined space in the carrying case in such a way that a weight of the light weight x-ray head is counter weighed by a weight of the low voltage power electronics to stabilize the portable x-ray system when the light weight x-ray head is rotated in one or more directions.
摘要翻译： 一种便携式x射线系统包括一个重量轻X射线头，包括一个x射线管和一个高压（HV）的坦克，其中HV坦克包括一个紧凑的电压倍增器，配置成接收低电压信号并产生高电压 基于接收到的低电压信号的信号。 此外，便携式x射线系统包括携带箱，其包括通过低压电缆耦合到轻量级X射线头的低压电力电子设备，并且被配置为将低电压信号发送到轻量级X射线头。 此外，低压电力电子设备以携带箱中的预定空间分布，使得重量轻的X射线头的重量由低压电力电子装置的重量进行称重，以稳定便携式x 当轻型X射线头在一个或多个方向上旋转时，射线系统。
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公开(公告)号：US20140112449A1
公开(公告)日：2014-04-24
申请号：US13654584
申请日：2012-10-18
发明人： Yun Zou , Scott Stephen Zelakiewicz , Floribertus P. M. Heukensfeldt Jansen , Mark Alan Frontera , Jeffrey Wayne Eberhard , Fengfeng Tao , Xi Zhang
摘要： An apparatus and method for providing a predefined x-ray field is presented. Briefly in accordance with one aspect of the present disclosure, the apparatus includes a cathode unit configured to emit electrons within a vacuum chamber. The apparatus further includes an anode unit configured to generate x-rays when the emitted electrons impinge on a target surface of the anode unit. Also, the apparatus includes a collimating unit comprising a primary set of blades disposed in the vacuum chamber at a first distance from the anode unit for collimating the generated x-rays to provide the predefined x-ray field at a detector.
摘要翻译： 提出了一种用于提供预定x射线场的装置和方法。 简要地，根据本公开的一个方面，该装置包括被配置为在真空室内发射电子的阴极单元。 该装置还包括阳极单元，其被配置为当发射的电子撞击阳极单元的目标表面时产生X射线。 此外，该装置包括准直单元，该准直单元包括设置在与阳极单元隔开第一距离的真空室中的初级叶片组，用于准直所产生的X射线以在检测器处提供预定的X射线场。
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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.
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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.
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