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1. 发明申请

US20060055303A1 Method of synthesizing small-diameter carbon nanotubes with electron field emission properties 有权
公开(公告)号：US20060055303A1
公开(公告)日：2006-03-16
申请号：US11012341
申请日：2004-12-16
申请人： Jie Liu , Chunsheng Du , Cheng Qian , Bo Gao , Qi Qiu , Otto Zhou
发明人： Jie Liu , Chunsheng Du , Cheng Qian , Bo Gao , Qi Qiu , Otto Zhou
IPC分类号： H01J1/14 , H01J19/06 , H01K1/04
CPC分类号： H01J9/025 , B82Y10/00 , B82Y30/00 , B82Y40/00 , C01B32/162 , C01B2202/04 , C01B2202/36 , H01J1/304 , H01J2201/30469
摘要： Carbon nanotube material having an outer diameter less than 10 nm and a number of walls less than ten are disclosed. Also disclosed are an electron field emission device including a substrate, an optionally layer of adhesion-promoting layer, and a layer of electron field emission material. The electron field emission material includes a carbon nanotube having a number of concentric graphene shells per tube of from two to ten, an outer diameter from 2 to 8 nm, and a nanotube length greater than 0.1 microns. One method to fabricate carbon nanotubes includes the steps of (a) producing a catalyst containing Fe and Mo supported on MgO powder, (b) using a mixture of hydrogen and carbon containing gas as precursors, and (c) heating the catalyst to a temperature above 950° C. to produce a carbon nanotube. Another method of fabricating an electron field emission cathode includes the steps of (a) synthesizing electron field emission materials containing carbon nanotubes with a number of concentric graphene shells per tube from two to ten, an outer diameter of from 2 to 8 nm, and a length greater than 0.1 microns, (b) dispersing the electron field emission material in a suitable solvent, (c) depositing the electron field emission materials onto a substrate, and (d) annealing the substrate.

2. 发明申请

US20050281379A1 Devices and methods for producing multiple x-ray beams from multiple locations 有权
公开(公告)号：US20050281379A1
公开(公告)日：2005-12-22
申请号：US11196300
申请日：2005-08-04
申请人： Qi Qiu , Jianping Lu , Otto Zhou
发明人： Qi Qiu , Jianping Lu , Otto Zhou
IPC分类号： H01J35/00 , H01J35/06
CPC分类号： B82Y10/00 , H01J35/065 , H01J2201/30469 , H01J2235/062 , H01J2235/068 , Y10S977/95
摘要： An x-ray generating device includes at least one field-emission cold cathode having a substrate and incorporating nanostructure-containing material including carbon nanotubes. The device further includes at least one anode target. Associated methods are also described.

3. 发明申请

US20070206726A1 Systems and methods for x-ray imaging and scanning of objects 有权
标题翻译：用于x射线成像和物体扫描的系统和方法
公开(公告)号：US20070206726A1
公开(公告)日：2007-09-06
申请号：US11601577
申请日：2006-11-17
申请人： Jianping Lu , Otto Zhou , Qi Qiu
发明人： Jianping Lu , Otto Zhou , Qi Qiu
IPC分类号： G21K5/10 , H01J35/06 , H01J35/00
CPC分类号： H01J35/065 , G01N23/203 , H01J35/24 , H01J2235/062 , H01J2235/068
摘要： Systems and methods for x-ray imaging and scanning of objects are disclosed. According to one aspect, the subject matter described herein can include providing an x-ray source configured to generate a plurality of individually-controllable x-ray beams, positioning an object to be imaged in a path for intercepting at least one of the x-ray beams, activating the x-ray source, detecting intensities of the emitted x-ray beams, and generating imaging data based on the intensities for constructing an image of the object.
摘要翻译：公开了用于x射线成像和物体扫描的系统和方法。根据一个方面，本文描述的主题可以包括提供被配置为产生多个可单独控制的X射线束的X射线源，将要成像的对象定位在用于截取x射线束中的至少一个的路径中，激活X射线源，检测发射的X射线束的强度，以及基于用于构建物体的图像的强度来生成成像数据。

4. 发明申请

US20060018432A1 Large-area individually addressable multi-beam x-ray system and method of forming same 审中-公开
公开(公告)号：US20060018432A1
公开(公告)日：2006-01-26
申请号：US10970384
申请日：2004-10-22
申请人： Otto Zhou , Jianping Lu , Qi Qiu
发明人： Otto Zhou , Jianping Lu , Qi Qiu
IPC分类号： H01J35/22 , H01J35/00 , H01J35/32
CPC分类号： H01J35/14 , A61B6/032 , A61B6/4028 , B82Y10/00 , H01J35/065 , H01J35/22 , H01J2201/30469 , H01J2235/064 , H01J2235/068 , H05G1/34
摘要： A structure to generate x-rays has a plurality of stationary and individually electrically addressable field emissive electron sources with a substrate composed of a field emissive material, such as carbon nanotubes. Electrically switching the field emissive electron sources at a predetermined frequency field emits electrons in a programmable sequence toward an incidence point on a target. The generated x-rays correspond in frequency and in position to that of the field emissive electron source. The large-area target and array or matrix of emitters can image objects from different positions and/or angles without moving the object or the structure and can produce a three dimensional image. The x-ray system is suitable for a variety of applications including industrial inspection/quality control, analytical instrumentation, security systems such as airport security inspection systems, and medical imaging, such as computed tomography.

5. 发明申请

US20050133372A1 Method and apparatus for attaching nanostructure-containing material onto a sharp tip of an object and related articles 有权
标题翻译：用于将纳米结构材料附着到物体和相关制品的锋利尖端上的方法和装置
公开(公告)号：US20050133372A1
公开(公告)日：2005-06-23
申请号：US10842357
申请日：2004-05-10
申请人： Otto Zhou , Bo Gao , Guozhen Yue , Soojin Oh
发明人： Otto Zhou , Bo Gao , Guozhen Yue , Soojin Oh
IPC分类号： B82B1/00 , B82B3/00 , C01B31/02 , C25D13/00 , C25D13/02 , C25D13/10 , C25D15/00 , G01Q70/12 , H01L29/06
CPC分类号： C25D13/00 , B82Y30/00 , C25D15/00
摘要： A method for attaching nanostructure-containing material onto a sharp tip of an object includes forming a suspension of pre-formed nanostructure-containing material in a liquid medium. An electrode is immersed in the suspension. The sharp tip of the object is arranged to be in contact with the suspension. A voltage is applied to the immersed electrode and to the sharp tip. The nanostructure-containing material attaches to the sharp tip of the object.
摘要翻译：将含有纳米结构的材料附着到物体的锋利尖端上的方法包括在液体介质中形成预形成的含纳米结构材料的悬浮液。将电极浸入悬浮液中。物体的锋利的尖端布置成与悬架接触。电压施加到浸没的电极和锋利的尖端。含有纳米结构的材料附着到物体的尖端。

6. 发明申请

US20050269559A1 Field emission ion source based on nanostructure-containing material 失效
标题翻译：基于纳米结构材料的场发射离子源
公开(公告)号：US20050269559A1
公开(公告)日：2005-12-08
申请号：US10858436
申请日：2004-06-02
申请人： Otto Zhou , Jianping Lu , Changkun Dong , Bo Gao
发明人： Otto Zhou , Jianping Lu , Changkun Dong , Bo Gao
IPC分类号： H01J27/26 , H01L29/06
CPC分类号： H01J27/26 , B82Y10/00
摘要： A field emission ion source has nanostructure materials on at least an emitting edge of the anode electrode. Metal is transferred from a metal reservoir to the emitting edge of the anode, where the metal is transferred to an emitting end of the nanostructure materials and is ionized under an applied electric field. Plural ion sources can be combined to form a field emission ion source device. The numbers of emitting sources are selectable through electric or mechanical switches and different ion extraction potentials can be applied. Various nanostructure materials include: single wall carbon nanotubes and bundles, few-walled carbon nanotubes and bundles, multi-walled carbon nanotubes and bundles, and carbon fiber. Nanostructure-containing material is integrated into the anode by electrophoresis, dielectrophoresis, CVD, screen printing, and mechanical methods. Metal, preferably alkali metal, is transferred into the nanostructure-containing material by one or a combination of following intercalation methods: vapor transport, solution, electrochemical, and solid state reaction.
摘要翻译：场发射离子源在阳极电极的至少一个发射边缘上具有纳米结构材料。金属从金属储存器转移到阳极的发射边缘，其中金属被转移到纳米结构材料的发射端，并在施加的电场下被电离。多个离子源可以组合形成场发射离子源装置。发射源的数量可以通过电动或机械开关进行选择，并且可以应用不同的离子提取电位。各种纳米结构材料包括：单壁碳纳米管和束，几壁碳纳米管和束，多壁碳纳米管和束以及碳纤维。含纳米结构的材料通过电泳，介电电泳，CVD，丝网印刷和机械方法集成到阳极中。通过以下插入方法之一或组合将金属（优选碱金属）转移到含纳米结构的材料中：蒸气转移，溶液，电化学和固态反应。

7. 发明申请

US20080006534A1 Deposition method for nanostructure materials 有权
标题翻译：纳米结构材料的沉积方法
公开(公告)号：US20080006534A1
公开(公告)日：2008-01-10
申请号：US11266318
申请日：2005-11-04
申请人： Otto Zhou , Bo Gao , Guozhen Yue , Soojin Oh
发明人： Otto Zhou , Bo Gao , Guozhen Yue , Soojin Oh
IPC分类号： C25B7/00
CPC分类号： C25D13/00 , B82Y30/00 , C25D15/00
摘要： A method for depositing a coating of a nanostructure material onto a substrate includes: (1) forming a solution or suspension of containing the nanostructure material; (2) selectively adding “chargers” to the solution; (3) immersing electrodes in the solution, the substrate upon which the nanostructure material is to be deposited acting as one of the electrodes; (4) applying a direct and/or alternating current electrical field between the two electrodes for a certain period of time thereby causing the nanostructure materials in the solution to migrate toward and attach themselves to the substrate electrode; and (5) subsequent optional processing of the coated substrate.
摘要翻译：将纳米结构材料的涂层沉积在基材上的方法包括：（1）形成含有纳米结构材料的溶液或悬浮液; （2）选择性地将“充电器”添加到解决方案中; （3）将电极浸渍在溶液中，沉积纳米结构材料的基板作为其中一个电极; （4）在两个电极之间施加直接和/或交流的电场一段时间，从而导致溶液中的纳米结构材料迁移并附着到衬底电极上; 和（5）随后可选地处理涂覆的基底。

8. 发明授权

US08358739B2 Systems and methods for temporal multiplexing X-ray imaging 有权
标题翻译：用于时间复用X射线成像的系统和方法
公开(公告)号：US08358739B2
公开(公告)日：2013-01-22
申请号：US12875260
申请日：2010-09-03
申请人： Jianping Lu , Otto Zhou , Guohua Cao , Jian Zhang
发明人： Jianping Lu , Otto Zhou , Guohua Cao , Jian Zhang
IPC分类号： H05G1/64
CPC分类号： H05G1/62 , H04N5/32
摘要： The present subject matter relates to systems and methods for temporal multiplexing x-ray imaging of dynamic objects with high temporal resolution and fast imaging speed. A pulsed x-ray beam can irradiate an object undergoing a range of motion such as a cyclic motion. Multiple x-ray images can be acquired at different phases within a single motion cycle or range of the object. The multiple x-ray images can be demultiplexed to produce an individual phase image. Compared to sequential imaging, temporal multiplexing x-ray imaging can achieve high temporal resolution of dynamics object in multiple phases with imaging time comparable to that of a single phase. Temporal multiplexing x-ray imaging can thus be applied to a wide variety of applications, including biomedical imaging and industrial non-destructive testing.
摘要翻译：本主题涉及用于时间复用具有高时间分辨率和快速成像速度的动态对象的x射线成像的系统和方法。脉冲X射线束可以照射经历诸如循环运动的运动范围的物体。可以在单个运动周期或对象范围内的不同阶段获取多个X射线图像。可以将多个X射线图像解复用以产生单个相位图像。与顺序成像相比，时间复用x射线成像可以在多个阶段实现动态对象的高时间分辨率，成像时间与单相相当。因此，时间复用x射线成像可以应用于各种应用，包括生物医学成像和工业无损检测。

9. 发明申请

US20070114434A1 MULTI-PIXEL ELECTRON MICROBEAM IRRADIATOR SYSTEMS AND METHODS FOR SELECTIVELY IRRADIATING PREDETERMINED LOCATIONS 有权
标题翻译：多像素电子微波辐射器系统和选择性预测位置的方法
公开(公告)号：US20070114434A1
公开(公告)日：2007-05-24
申请号：US11320515
申请日：2005-12-28
申请人： Sha Chang , Otto Zhou
发明人： Sha Chang , Otto Zhou
IPC分类号： G01K1/08
CPC分类号： H01J37/304 , G21K5/04 , H01J33/02 , H01J33/04 , H01J37/302 , H01J37/317 , H01J2201/30469 , H01J2237/0635 , H01J2237/2004 , H01J2237/2006 , H01J2237/316
摘要： Multi-pixel electron microbeam irradiator systems and methods are provided with particular applicability for selectively irradiating predetermined cells or cell locations. A multi-pixel electron microbeam irradiator system can include a plurality of individually addressable electron field emitters sealed in a vacuum. The multi-pixel electron microbeam irradiator system can include an anode comprising one or more electron permeable portions corresponding to the plurality of electron field emitters. Further, the multi-pixel electron microbeam irradiator system can include a controller operable to individually control electron extraction from each of the electron field emitters for selectively irradiating predetermined locations such as cells or cell locations.
摘要翻译：提供了多像素电子微束照射器系统和方法，其特别适用于选择性地照射预定的细胞或细胞位置。多像素电子微束照射器系统可以包括在真空中密封的多个可单独寻址的电子场发射器。多像素电子微束照射器系统可以包括阳极，该阳极包括对应于多个电子场发射体的一个或多个电子透过部分。此外，多像素电子微束照射器系统可以包括控制器，其可操作以单独地控制来自每个电子场发射器的电子提取，以选择性地照射诸如单元或单元位置的预定位置。

10. 发明申请

US20070053489A1 X-ray imaging systems and methods using temporal digital signal processing for reducing noise and for obtaining multiple images simultaneously 有权
公开(公告)号：US20070053489A1
公开(公告)日：2007-03-08
申请号：US11410997
申请日：2006-04-25
申请人： Jianping Lu , Otto Zhou , Jian Zhang
发明人： Jianping Lu , Otto Zhou , Jian Zhang
IPC分类号： G01N23/04
CPC分类号： G01N23/04 , G01N2223/204 , G01N2223/419
摘要： X-ray imaging systems and methods are provided that use temporal digital signal processing for reducing noise and for obtaining multiple images simultaneously. An x-ray imaging system can include an x-ray source adapted to generate a pulsed x-ray beam having a predetermined frequency and apply the pulsed x-ray beam to an object to be imaged. An x-ray detector can be adapted to detect x-ray radiation from the object and generate temporal data based on the x-ray radiation. A temporal data analyzer can be adapted to apply a temporal signal process to the temporal data to remove at least a portion of the temporal data having a different frequency than the predetermined frequency.

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