公开(公告)号：US11996282B2

公开(公告)日：2024-05-28

申请号：US18247262

申请日：2021-09-29

申请人： NCX Corporation

发明人： Jian Zhang ,  Cheng Qian

IPC分类号： H01J9/02 ,  B08B7/02 ,  H01J1/304

CPC分类号： H01J9/025 ,  B08B7/026 ,  H01J1/3048 ,  H01J2209/017

摘要： A method and system for cleaning a field emission cathode device, the field emission cathode device including a substrate having a field emission layer engaged therewith, includes engaging the field emission cathode device with a vibration device such that the substrate is disposed above the field emission layer. The field emission cathode device is then vibrated with the vibration device in an X, Y, or Z direction at a predetermined frequency and at a predetermined amplitude for a predetermined time duration so as to clean the field emission cathode device by dislodging non-embedded particles from the field emission layer.

公开(公告)号：US20240079197A1

公开(公告)日：2024-03-07

申请号：US18247262

申请日：2021-09-29

申请人： NCX Corporation

发明人： Jian ZHANG ,  Cheng QIAN

IPC分类号： H01J9/02 ,  B08B7/02 ,  H01J1/304

CPC分类号： H01J9/025 ,  B08B7/026 ,  H01J1/3048 ,  H01J2209/017

摘要： A method and system for cleaning a field emission cathode device, the field emission cathode device including a substrate having a field emission layer engaged therewith, includes engaging the field emission cathode device with a vibration device such that the substrate is disposed above the field emission layer. The field emission cathode device is then vibrated with the vibration device in an X, Y, or Z direction at a predetermined frequency and at a predetermined amplitude for a predetermined time duration so as to clean the field emission cathode device by dislodging non-embedded particles from the field emission layer.

公开(公告)号：US08351575B2

公开(公告)日：2013-01-08

申请号：US12866745

申请日：2009-02-10

申请人： Gereon Vogtmeier

发明人： Gereon Vogtmeier

IPC分类号： H01J35/00

CPC分类号： H01J1/3048 ,  H01J35/065 ,  H01J2235/062 ,  H01J2235/068

摘要： A source (19) for multiple energy X-ray generation in particular by field emitting carbon nanotubes (1, 2) is presented. In order to achieve a spatial overlap of the trajectories of the X-ray beams coming from different emitters, a focusing unit (7, 9) is supplied to the emitted electrons (28, 29). A fast switching between the emission of the different carbon nanotubes allows multiple kilovolt imaging. Independent determination of multiple focal spot parameters by the focusing unit leads to the possibilities of fast switching between different spot geometries and spatial resolutions. This might be seen in FIG. 1.

摘要翻译： 提出了用于多能量X射线产生的源（19），特别是通过场发射碳纳米管（1,2）。 为了实现来自不同发射体的X射线束的轨迹的空间重叠，聚焦单元（7,9）被提供给发射的电子（28,29）。 在不同碳纳米管的发射之间的快速切换允许多次成像。 通过聚焦单元独立确定多个焦斑参数导致不同光斑几何形状和空间分辨率之间快速切换的可能性。 这可以在图1中看出。 1。

公开(公告)号：US20110007874A1

公开(公告)日：2011-01-13

申请号：US12866745

申请日：2009-02-10

申请人： Gereon Vogtmeier

发明人： Gereon Vogtmeier

IPC分类号： H05G2/00

CPC分类号： H01J1/3048 ,  H01J35/065 ,  H01J2235/062 ,  H01J2235/068

摘要： A source (19) for multiple energy X-ray generation in particular by field emitting carbon nanotubes (1, 2) is presented. In order to achieve a spatial overlap of the trajectories of the X-ray beams coming from different emitters, a focusing unit (7, 9) is supplied to the emitted electrons (28, 29). A fast switching between the emission of the different carbon nanotubes allows multiple kilovolt imaging. Independent determination of multiple focal spot parameters by the focusing unit leads to the possibilities of fast switching between different spot geometries and spatial resolutions. This might be seen in FIG. 1.

摘要翻译： 提出了用于多能量X射线产生的源（19），特别是通过场发射碳纳米管（1,2）。 为了实现来自不同发射体的X射线束的轨迹的空间重叠，聚焦单元（7,9）被提供给发射的电子（28,29）。 在不同碳纳米管的发射之间的快速切换允许多次成像。 通过聚焦单元独立确定多个焦斑参数导致不同光斑几何形状和空间分辨率之间快速切换的可能性。 这可以在图1中看出。 1。

公开(公告)号：US20100320439A1

公开(公告)日：2010-12-23

申请号：US12081024

申请日：2008-04-09

申请人： Yong-Wan Jin ,  Jong-Min Kim ,  Hee-Tae Jung ,  Tae-Won Jeong ,  Young-Koan Ko

发明人： Yong-Wan Jin ,  Jong-Min Kim ,  Hee-Tae Jung ,  Tae-Won Jeong ,  Young-Koan Ko

IPC分类号： H01L29/12

CPC分类号： H01J1/3048 ,  B82Y10/00 ,  B82Y30/00 ,  H01J2201/30469 ,  H01L51/0048 ,  Y10S977/70 ,  Y10S977/742 ,  Y10S977/788 ,  Y10S977/842

摘要： A Carbon NanoTube (CNT) structure includes a substrate, a CNT support layer, and a plurality of CNTs. The CNT support layer is stacked on the substrate and has pores therein. One end of each of the CNTs is attached to portions of the substrate exposed through the pores and each of the CNTs has its lateral sides supported by the CNT support layer. A method of vertically aligning CNTs includes: forming a first conductive substrate; stacking a CNT support layer having pores on the first conductive substrate; and attaching one end of the each of the CNTs to portions of the first conductive substrate exposed through the pores.

摘要翻译： 碳纳米管（CNT）结构包括基板，CNT支撑层和多个CNT。 CNT支撑层层叠在基板上并具有孔。 每个CNT的一端连接到通过孔露出的基板的部分，并且每个CNT的侧面由CNT支撑层支撑。 一种垂直排列CNT的方法包括：形成第一导电衬底; 在第一导电基板上堆叠具有孔的CNT支撑层; 并且将每个CNT的一端附着到通过孔暴露的第一导电基底的部分。

公开(公告)号：US07811625B2

公开(公告)日：2010-10-12

申请号：US11937610

申请日：2007-11-09

申请人： Takeshi Ichikawa ,  Ryoji Fujiwara ,  Daisuke Sasaguri

发明人： Takeshi Ichikawa ,  Ryoji Fujiwara ,  Daisuke Sasaguri

IPC分类号： B05D5/12 ,  B05D3/02 ,  C23C14/14

CPC分类号： H01J9/025 ,  H01J1/3048

摘要： There is provided an electron-emitting device of a field emission type, with which the spot size of an electron beam is small, an electron emission area is large, highly efficient electron emission is possible with a low voltage, and the manufacturing process is easy. The electron-emitting device includes a layer 2 which is electrically connected to a cathode electrode 5, and a plurality of particles 3 which contains a material having a resistivity lower than that of a material constituting the layer 2, and is wherein a density of particles 3 in the layer 2 is 1×1014/cm3 or more and 5×1018/cm3 or less.

摘要翻译： 提供了一种场致发射型电子发射装置，其电子束的光点尺寸小，电子发射面积大，电子发射能够以低电压发射，制造工艺容易 。 电子发射器件包括电连接到阴极电极5的层2和包含电阻率低于构成层2的材料的电阻率的多个颗粒3，其中颗粒的密度 层2中的3为1×​​10 14 / cm 3以上且5×10 18 / cm 3以下。

公开(公告)号：US20100254886A1

公开(公告)日：2010-10-07

申请号：US11531730

申请日：2006-09-14

申请人： Kenneth O. McElrath ,  Yuemei Yang ,  Kenneth A. Smith ,  Xiaodong Hu

发明人： Kenneth O. McElrath ,  Yuemei Yang ,  Kenneth A. Smith ,  Xiaodong Hu

IPC分类号： D01F9/12

CPC分类号： B82Y30/00 ,  B01J23/881 ,  B01J23/8872 ,  B01J35/0026 ,  B01J35/023 ,  B82Y10/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B32/168 ,  C01B2202/02 ,  C01B2202/04 ,  C01B2202/06 ,  C01B2202/34 ,  C01B2202/36 ,  C23C16/26 ,  C23C16/4417 ,  H01J1/3048 ,  H01J9/025 ,  H01J29/481 ,  H01J2201/30469 ,  Y10S977/752

摘要： A method for making carbon nanotube particulates involves providing a catalyst comprising catalytic metals, such as iron and molybdenum or metals from Group VIB or Group VIIIB elements, on a support material, such as magnesia, and contacting the catalyst with a gaseous carbon-containing feedstock, such as methane, at a sufficient temperature and for a sufficient contact time to make small-diameter carbon nanotubes having one or more walls and outer wall diameters of less than about 3 nm. Removal of the support material from the carbon nanotubes yields particulates of enmeshed carbon nanotubes that retain an approximate three-dimensional shape and size of the particulate support that was removed. The carbon nanotube particulates can comprise ropes of carbon nanotubes. The carbon nanotube particulates disperse well in polymers and show high conductivity in polymers at low loadings. As electrical emitters, the carbon nanotube particulates exhibit very low “turn on” emission field.

摘要翻译： 制造碳纳米管微粒的方法涉及提供催化剂，该催化剂包括催化金属如铁和钼或来自VIB族或VIIIB族元素的金属，在载体材料如氧化镁上，并使催化剂与气态含碳原料接触 ，例如甲烷，在足够的温度下和足够的接触时间来制备具有一个或多个壁和外壁直径小于约3nm的小直径碳纳米管。 从碳纳米管去除载体材料产生嵌入的碳纳米管的颗粒，其保留被除去的颗粒载体的近似三维形状和尺寸。 碳纳米管颗粒可以包括碳纳米管的绳索。 碳纳米管颗粒分散在聚合物中，并且在低负载下在聚合物中显示高导电性。 作为电发射体，碳纳米管微粒表现出非常低的“导通”发射场。

公开(公告)号：US07771117B2

公开(公告)日：2010-08-10

申请号：US12181791

申请日：2008-07-29

申请人： Jong Uk Kim ,  Hae Young Choi

发明人： Jong Uk Kim ,  Hae Young Choi

IPC分类号： H05G1/02 ,  H01J35/00

CPC分类号： H01J35/065 ,  A61B6/14 ,  A61B6/145 ,  A61N5/1014 ,  H01J1/3048 ,  H01J35/32

摘要： A medical X-ray tube system for dental diagnosis and oral cancer therapy based on nano-material is disclosed. The medical X-ray tube system may include a body and an X-ray emission module emitting X-rays using a cathode having a chipped nano-structured material. The X-ray emission module may be separable from the body. The medical X-ray tube system may be formed as a pen that can be inserted in the oral cavity for displaying an accurate image of an inner location of the oral cavity needing a diagnosis. For treatment of oral cancer requiring an appropriate amount of radiation therapy, brachytherapy may be conducted without concern of exposure of normal tissues to radiation because radiation can be directly irradiated to a diseased part. The X-ray emission module may use a chipped nano-structured material, for example, a carbon nanotube.

摘要翻译： 公开了一种用于牙科诊断和基于纳米材料的口腔癌治疗的医用X射线管系统。 医疗X射线管系统可以包括使用具有切片纳米结构材料的阴极发射X射线的体和X射线发射模块。 X射线发射模块可以与身体分离。 医疗X射线管系统可以形成为可以插入口腔中的笔，以显示需要诊断的口腔的内部位置的精确图像。 为了治疗需要适当量的放射治疗的口腔癌，可以进行近距离放射治疗，而不用担心正常组织暴露于辐射，因为辐射可以直接照射到患病部位。 X射线发射模块可以使用切片纳米结构材料，例如碳纳米管。

公开(公告)号：US20090310742A1

公开(公告)日：2009-12-17

申请号：US12181791

申请日：2008-07-29

申请人： Jong Uk Kim ,  Hae Young Choi

发明人： Jong Uk Kim ,  Hae Young Choi

IPC分类号： A61B6/14 ,  H01J35/00 ,  H01J35/20

CPC分类号： H01J35/065 ,  A61B6/14 ,  A61B6/145 ,  A61N5/1014 ,  H01J1/3048 ,  H01J35/32

摘要： The present invention relates to applying an existing carbon nanotube X-ray tube for a dental X-ray imaging system that can replace a carbon nanotube electron emission source installed in a cathode portion. An X-ray tube system formed in a pen according to the present invention can be inserted in the oral cavity due to its thin thickness, thereby displaying an accurate image of an inner location of the oral cavity needing a diagnosis. For therapy of oral cancer requiring an appropriate amount of radiation therapy, since radiation can be directly irradiated to a diseased part, brachytherapy is enabled without concern of exposure dose of normal tissues. Therefore, when the system is commercialized, a great amount of distribution effect may be expected. The X-ray tube system that can be used for medical services such as a dental service includes an X-ray emission module emitting X-rays using a chipped nano-structured material, for example, carbon nanotube. The X-ray emission module is separable from a body in order to replace a cathode portion that is included in the X-ray emission module and is based on the nano-structured material.

摘要翻译： 本发明涉及应用现有的用于牙科X射线成像系统的碳纳米管X射线管，其可以替代安装在阴极部分中的碳纳米管电子发射源。 根据本发明的用笔形成的X射线管系统由于其厚度薄而能够插入口腔，从而显示需要诊断的口腔内部位置的精确图像。 对于需要适量辐射治疗的口腔癌的治疗，由于辐射可以直接照射到患病部位，所以可以进行近距离放射治疗而不考虑正常组织的暴露剂量。 因此，当系统商业化时，可以预期大量的分配效应。 可用于医疗服务如牙科服务的X射线管系统包括使用切片纳米结构材料（例如碳纳米管）发射X射线的X射线发射模块。 为了更换X射线发射模块中包含的阴极部分并且基于纳米结构材料，X射线发射模块可与主体分离。

公开(公告)号：US20090185660A1

公开(公告)日：2009-07-23

申请号：US12017098

申请日：2008-01-21

申请人： Yun Zou ,  Mark E. Vermilyea ,  Louis Paul Inzinna ,  Vasile Bogdan Neculaes ,  John Scott Price ,  Yang Cao ,  Antonio Caiafa

发明人： Yun Zou ,  Mark E. Vermilyea ,  Louis Paul Inzinna ,  Vasile Bogdan Neculaes ,  John Scott Price ,  Yang Cao ,  Antonio Caiafa

IPC分类号： H01J35/04 ,  H01J35/14

CPC分类号： H01J1/3048 ,  H01J2235/062 ,  H01J2235/068

摘要： A multiple spot x-ray generator is provided that includes a plurality of electron generators. Each electron generator includes an emitter element to emit an electron beam, a meshed grid adjacent each emitter element to enhance an electric field at a surface of the emitter element, and a focusing element positioned to receive the electron beam from each of the emitter elements and focus the electron beam to form a focal spot on a shielded target anode, the shielded target anode structure producing an array of x-ray focal spots when impinged by electron beams generated by the plurality of electron generators. The plurality of electron generators are arranged to form an electron generator matrix that includes activation connections electrically connected to the plurality of electron generators, wherein each electron generator is connected to a pair of the activation connections to receive an electric potential therefrom.

摘要翻译： 提供了包括多个电子发生器的多点x射线发生器。 每个电子发生器包括发射电子束的发射体元件，邻近每个发射极元件的网格栅格，以增强发射体元件表面的电场;以及聚焦元件，其定位成从每个发射体元件接收电子束， 聚焦电子束以在屏蔽目标阳极上形成焦斑，屏蔽目标阳极结构在由多个电子发生器产生的电子束撞击时产生X射线焦点阵列。 多个电子发生器被布置成形成电子发生器矩阵，其包括电连接到多个电子发生器的激活连接，其中每个电子发生器连接到一对激活连接以从其接收电位。