公开(公告)号：US08189893B2

公开(公告)日：2012-05-29

申请号：US11804897

申请日：2007-05-21

Applicant: Jian Zhang ,  Jianping Lu ,  Otto Z. Zhou ,  David Lalush

Inventor： Jian Zhang ,  Jianping Lu ,  Otto Z. Zhou ,  David Lalush

IPC: G06K9/00 ,  H05G1/60

CPC classification number: H01J35/14 ,  A61B6/00 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/405 ,  A61B6/482 ,  G06T11/005 ,  G06T2211/408 ,  H01J35/065 ,  H01J2235/062 ,  H01J2235/068 ,  H05G1/52

Abstract: Methods, systems, and computer program products for binary multiplexing x-ray radiography are disclosed. According to one aspect, the subject matter described herein can include irradiating an object with composite x-ray beams including signals based on a predetermined binary transform. Further, the subject matter described herein can include detecting x-ray intensities associated with the signals of the composite x-ray beams. An inverse binary transform can be applied to the detected x-ray intensities associated with the signals of the composite x-ray beams to recover the signals of the composite x-ray beams.

Abstract translation: 公开了用于二进制复用x射线照相术的方法，系统和计算机程序产品。 根据一个方面，本文描述的主题可以包括用包含基于预定二进制变换的信号的复合X射线束照射物体。 此外，本文描述的主题可以包括检测与复合x射线束的信号相关联的x射线强度。 可以对与复合x射线束的信号相关联的检测到的x射线强度应用逆二值变换以恢复复合x射线束的信号。

公开(公告)号：US20120057678A1

公开(公告)日：2012-03-08

申请号：US12875260

申请日：2010-09-03

Applicant: Jianping Lu ,  Otto Zhou ,  Guohua Cao ,  Jian Zhang

Inventor： Jianping Lu ,  Otto Zhou ,  Guohua Cao ,  Jian Zhang

IPC: H05G1/10

CPC classification number: H05G1/62 ,  H04N5/32

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090022264A1

公开(公告)日：2009-01-22

申请号：US12176056

申请日：2008-07-18

Applicant: Otto Z. Zhou ,  Guang Yang ,  Jianping Lu ,  David Lalush

Inventor： Otto Z. Zhou ,  Guang Yang ,  Jianping Lu ,  David Lalush

IPC: A61B6/04 ,  A61B6/02

CPC classification number: G06T11/006 ,  A61B6/025 ,  A61B6/4007 ,  A61B6/405 ,  A61B6/4291 ,  A61B6/482 ,  A61B6/502 ,  A61B6/584 ,  G06T2211/436

Abstract: Stationary x-ray digital breast tomosynthesis systems and related methods are disclosed. According to one aspect, the subject matter described herein can include an x-ray tomosynthesis system having a plurality of stationary field emission x-ray sources configured to irradiate a location for positioning an object to be imaged with x-ray beams to generate projection images of the object. An x-ray detector can be configured to detect the projection images of the object. A projection image reconstruction function can be configured to reconstruct tomography images of the object based on the projection images of the object.

Abstract translation: 公开了固定x射线数字乳房断层合成系统及相关方法。 根据一个方面，本文所述的主题可以包括具有多个静止场发射x射线源的x射线断层合成系统，其被配置为照射用于利用x射线束来定位待成像对象的位置以产生投影图像 的对象。 X射线检测器可被配置为检测对象的投影图像。 投影图像重建功能可以被配置为基于对象的投影图像重建对象的断层摄影图像。

公开(公告)号：US20080043920A1

公开(公告)日：2008-02-21

申请号：US11717590

申请日：2007-03-13

Applicant: Zejian Liu ,  Otto Zhou ,  Jianping Lu

Inventor： Zejian Liu ,  Otto Zhou ,  Jianping Lu

IPC: H01J35/14

CPC classification number: H01J35/065 ,  H01J35/14 ,  H01J2235/062

Abstract: Micro-focus field emission x-ray sources and related methods are provided. A micro-focus field emission x-ray source can include a field emission cathode including a film with a layer of electron field emitting materials patterned on a conducting surface. Further, the x-ray source can include a gate electrode for extracting field emitted electrons from the cathode when a bias electrical field is applied between the gate electrode and the cathode. The x-ray source can also include an anode. Further, the x-ray source can include an electrostatic focusing unit between the gate electrode and anode. The electrostatic focusing unit can include multiple focusing electrodes that are electrically separated from each other. Each of the electrodes can have an independently adjustable electrical potential. A controller can be configured to adjust at least one of the electrical potentials of the focusing electrodes and to adjust a size of the cathode.

Abstract translation: 提供微焦场发射x射线源及相关方法。 微焦点场发射x射线源可以包括场致发射阴极，其包括具有在导电表面上图案化的电子场发射材料层的膜。 此外，当在栅电极和阴极之间施加偏置电场时，x射线源可以包括用于从阴极提取场发射的电子的栅电极。 x射线源还可以包括阳极。 此外，x射线源可以包括在栅电极和阳极之间的静电聚焦单元。 静电聚焦单元可以包括彼此电分离的多个聚焦电极。 每个电极可以具有独立可调的电位。 控制器可以被配置为调节聚焦电极的至少一个电位并调整阴极的尺寸。

公开(公告)号：US07129513B2

公开(公告)日：2006-10-31

申请号：US10858436

申请日：2004-06-02

Applicant: Otto Z. Zhou ,  Jianping Lu ,  Changkun Dong ,  Bo Gao

Inventor： Otto Z. Zhou ,  Jianping Lu ,  Changkun Dong ,  Bo Gao

IPC: H01L29/06

CPC classification number: H01J27/26 ,  B82Y10/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07087677B2

公开(公告)日：2006-08-08

申请号：US10467708

申请日：2002-02-20

Applicant: Bansi Lal Kaul ,  Jean-Christophe Graciet ,  Mitchell A. Winnik ,  Frederic Tronc ,  Mei Li ,  Jianping Lu

Inventor： Bansi Lal Kaul ,  Jean-Christophe Graciet ,  Mitchell A. Winnik ,  Frederic Tronc ,  Mei Li ,  Jianping Lu

IPC: C08L31/00

CPC classification number: C07D495/06 ,  C09B69/102

Abstract: This invention relates to copolymer compositions having pigment like properties, comprising a fluorescent or non-fluorescent dye attached to a polymer chain by a spacer having a chain length of C3 or longer.The invention also provides for new mono- and difunctional dye monomers comprising a polymerizable group attached to a dye moiety by a spacer of a chain length of C3 or longer.The polymer pigments provide excellent properties, especially high temperature stability and easy applicability as colorant in different standard polymers.

Abstract translation: 本发明涉及具有颜料性质的共聚物组合物，其包含通过具有C 3或更长链长的间隔基连接到聚合物链上的荧光或非荧光染料。 本发明还提供了新的单官能和双官能染料单体，其包含通过链长为C 3 N 3或更长的间隔基连接到染料部分上的可聚合基团。 聚合物颜料提供优异的性能，特别是高温稳定性和易于适用于不同标准聚合物中的着色剂。

公开(公告)号：US07085351B2

公开(公告)日：2006-08-01

申请号：US10358160

申请日：2003-02-05

Applicant: Jianping Lu ,  Otto Zhou ,  Yuan Cheng

Inventor： Jianping Lu ,  Otto Zhou ,  Yuan Cheng

IPC: H01J35/32

CPC classification number: H01J35/06 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4028 ,  A61B6/405 ,  A61B6/4488 ,  A61B6/482 ,  B82Y10/00 ,  H01J3/021 ,  H01J35/065 ,  H01J35/08 ,  H01J35/105 ,  H01J35/14 ,  H01J35/22 ,  H01J35/28 ,  H01J35/30 ,  H01J2201/30469 ,  H01J2235/06 ,  H01J2235/062 ,  H01J2235/064 ,  H01J2235/068 ,  H05G1/34

Abstract: An x-ray generating device includes a field emission cathode formed at least partially from a nanostructure-containing material having an emitted electron current density of at least 4 A/cm2. High energy conversion efficiency and compact design are achieved due to easy focusing of cold cathode emitted electrons and dramatic reduction of heating at the anode. In addition, by pulsing the field between the cathode and the gate or anode and focusing the electron beams at different anode materials, pulsed x-ray radiation with varying energy can be generated from a single device. Methods and apparatus for independent control of electron emission current and x-ray energy in x-ray tubes are also provided. The independent control can be accomplished by adjusting the distance between the cathode and anode. The independent control can also be accomplished by adjusting the temperature of the cathode. The independent control can also be accomplished by optical excitation of the cathode. The cathode can include field emissive materials such as carbon nanotubes.

公开(公告)号：US20050281379A1

公开(公告)日：2005-12-22

申请号：US11196300

申请日：2005-08-04

Applicant: Qi Qiu ,  Jianping Lu ,  Otto Zhou

Inventor： Qi Qiu ,  Jianping Lu ,  Otto Zhou

IPC: H01J35/00 ,  H01J35/06

CPC classification number: B82Y10/00 ,  H01J35/065 ,  H01J2201/30469 ,  H01J2235/062 ,  H01J2235/068 ,  Y10S977/95

Abstract: 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.

公开(公告)号：US06553096B1

公开(公告)日：2003-04-22

申请号：US09679303

申请日：2000-10-06

Applicant: Otto Z. Zhou ,  Jianping Lu

Inventor： Otto Z. Zhou ,  Jianping Lu

IPC: H01J37073

CPC classification number: H01J35/14 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/4028 ,  A61B6/405 ,  A61B6/4488 ,  A61B6/482 ,  B82Y10/00 ,  H01J35/065 ,  H01J35/22 ,  H01J2201/30469 ,  H01J2235/064 ,  H01J2235/068 ,  H05G1/34 ,  Y10S977/939

Abstract: An x-ray generating device includes a field emission cathode formed at least partially from a nanostructure-containing material having an emitted electron current density of at least 4 A/cm2. High energy conversion efficiency and compact design are achieved due to easy focusing of cold cathode emitted electrons and dramatic reduction of heating at the anode. In addition, by pulsing the field between the cathode and the gate or anode and focusing the electron beams at different anode materials, pulsed x-ray radiation with varying energy can be generated from a single device.

公开(公告)号：US08155262B2

公开(公告)日：2012-04-10

申请号：US11526217

申请日：2006-09-22

Applicant: Otto Z. Zhou ,  Jianping Lu ,  Jian Zhang ,  Guang Yang ,  Yueh Lee ,  Qi Qiu ,  Yuan Cheng

Inventor： Otto Z. Zhou ,  Jianping Lu ,  Jian Zhang ,  Guang Yang ,  Yueh Lee ,  Qi Qiu ,  Yuan Cheng

IPC: A61B6/03

CPC classification number: G01N23/04 ,  G01N2223/204 ,  G01N2223/419

Abstract: Methods, systems, and computer program products for multiplexing computed tomography are disclosed. According to one aspect, the subject matter described herein can include illuminating an object with a plurality of x-ray beams from a plurality of viewing angles, wherein each x-ray beam has a distinct waveform; detecting the x-ray intensities of the plurality of pulsed x-ray beams as a function of time, and extracting individual projection image data from the detected x-ray intensities based on the distinct waveforms of the x-ray beams for combining the projection image data to generate three-dimensional tomographic image data of the object.

Abstract translation: 公开了用于复用计算机断层摄影的方法，系统和计算机程序产品。 根据一个方面，本文描述的主题可以包括用多个视角对多个X射线束照射物体，其中每个X射线束具有不同的波形; 检测作为时间的函数的多个脉冲X射线束的x射线强度，并且基于用于组合投影图像的x射线束的不同波形从检测到的x射线强度中提取各个投影图像数据 数据以产生对象的三维断层图像数据。