-
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.
-
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.
-
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.
-
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.
-
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。
-
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：US20160300686A1
公开(公告)日：2016-10-13
申请号：US14682890
申请日：2015-04-09
发明人： George Theodore Dalakos , Mark Alan Frontera , Vance Scott Robinson , William Robert Ross , Xi Zhang
IPC分类号： H01J35/12
CPC分类号： H01J35/12 , H01J2235/088 , H01J2235/1204 , H01J2235/1233 , H01J2235/1291
摘要： In various embodiments, a multi-layer X-ray source target is provided having two or more layers of target material at different depths and different thicknesses. In one such embodiment the X-ray generating layers increase in thickness in relationship to their depth relative to the electron beam facing surface of the source target, such that X-ray generating layer further from this surface are thick than X-ray generating layers closer to the electron beam facing surface.
摘要翻译： 在各种实施例中，提供具有不同深度和不同厚度的两层或多层靶材料的多层X射线源靶。 在一个这样的实施例中，X射线产生层的厚度相对于其相对于源极靶的面向电子束的表面的深度而增加，使得从该表面进一步的X射线产生层比X射线产生层更厚 到面向电子束的表面。
-
公开(公告)号：US09237872B2
公开(公告)日：2016-01-19
申请号：US13744662
申请日：2013-01-18
发明人： John Eric Tkaczyk , Remy Andre Klausz , Scott Stephen Zelakiewicz , Vasile Bogdan Neculaes , Xi Zhang
摘要： An X-ray source comprising a cathode element adapted to generate a stream of electrons. The X-ray source includes an anode element adapted to present a focal spot position for the stream of electrons. A vacuum chamber contains the cathode element and anode element. The anode element and/or the cathode element can be moveable with respect to the other in coordination with the generation of the stream of electrons.
摘要翻译： 一种X射线源，包括适于产生电子流的阴极元件。 X射线源包括适于呈现电子流的焦点位置的阳极元件。 真空室包含阴极元件和阳极元件。 与电子流的产生协调，阳极元件和/或阴极元件可以相对于另一个元件移动。
-
公开(公告)号：US20150311025A1
公开(公告)日：2015-10-29
申请号：US14264075
申请日：2014-04-29
发明人： Yun Zou , Carey Shawn Rogers , Sergio Lemaitre , Mark Alan Frontera , Xi Zhang
IPC分类号： H01J35/02
CPC分类号： H01J35/06 , H01J35/065
摘要： An emitter device having an emission surface includes a plurality of ligaments configured to emit electrons in response to an applied electric field resulting from an applied electrical voltage. Further, the emitter device includes a plurality of slots configured to provide physical separation between two or more adjacently disposed ligaments of the plurality of ligaments, where one or more slots of the plurality of slots define an electrical path. Moreover, the emitter device includes a low work function layer disposed on at least a portion of a ligament of the plurality of ligaments.
摘要翻译： 具有发射表面的发射器件包括多个韧带，其配置为响应于由所施加的电压产生的施加电场而发射电子。 此外，发射器装置包括被配置为在多个韧带的两个或更多相邻设置的韧带之间提供物理分离的多个槽，其中多个槽中的一个或多个狭槽限定电路径。 此外，发射器装置包括设置在多个韧带的韧带的至少一部分上的低功函数层。
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.023 秒)
