公开(公告)号：US20100278307A1

公开(公告)日：2010-11-04

申请号：US12238200

申请日：2008-09-25

Applicant: Paul D. Moore ,  James Russell Boye

Inventor： Paul D. Moore ,  James Russell Boye

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J2235/06

Abstract: An electron emitter assembly for use in an x-ray emitting device or other electron emitter-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes an electron emitter having a plurality of substantially parallel emission surfaces that collectively emit a beam of electrons for impingement on the target anode. In one aspect, the plurality of substantially parallel emission surfaces are angled relative focusing region so as to provide a substantially uniform thermal load on the target anode. In another aspect, the electron emitter includes a plurality of cut-outs that accommodate thermal expansion in the plane of the emitter. Accommodating thermal expansion in the plane of the emitter prevents distortions to the emitter that would tend to alter the focusing of the electrons on the target anode. Providing a substantially uniform thermal load on the target anode and preventing thermal distortion of the emitter lead to higher x-ray flux and better focusing for higher quality x-ray images.

Abstract translation: 公开了一种用于x射线发射器件或其它含电子发射器的器件中的电子发射器组件。 在一个实施例中，公开了一种X射线管，其包括容纳具有目标表面的阳极和相对于阳极定位的阴极的真空外壳。 阴极包括具有多个基本上平行的发射表面的电子发射体，其共同地发射用于冲击靶阳极的电子束。 在一个方面，多个基本平行的发射表面是成角度的相对聚焦区域，以便在目标阳极上提供基本均匀的热负荷。 在另一方面，电子发射器包括适应发射器平面热膨胀的多个切口。 在发射体的平面内容纳热膨胀可防止发射体发生变形，从而改变目标阳极上电子的聚焦。 在目标阳极上提供基本均匀的热负荷，并防止发射极的热变形导致更高的x射线通量，并更好地聚焦以获得更高质量的x射线图像。

公开(公告)号：US20100260322A1

公开(公告)日：2010-10-14

申请号：US12739986

申请日：2008-10-22

Applicant: Yoshiaki Ito ,  Shinzo Yoshikado ,  Yoshikazu Nakanishi ,  Shinji Fukao ,  Toru Nakamura ,  Shigeo Ito ,  Takeshi Tonegawa ,  Yohei Fujimura

Inventor： Yoshiaki Ito ,  Shinzo Yoshikado ,  Yoshikazu Nakanishi ,  Shinji Fukao ,  Toru Nakamura ,  Shigeo Ito ,  Takeshi Tonegawa ,  Yohei Fujimura

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J2235/086

Abstract: An X-ray generator comprises a container (1) for maintaining a high vacuum or low pressure gas atmosphere internally, a hemimorphic crystal (4), temperature raising/lowering means (3, 5-7), and a metal target (8) for generating X-rays. In this X-ray generator the metal target (8) has a pointed protrusion protruding toward the hemimorphic crystal (4). When X-rays are generated by raising/lowering the temperature of the hemimorphic crystal (4) by using the temperature raising/lowering means (3, 5-7), the intensity of an electric field formed between the hemimorphic crystal (4) and the metal target (8) increases at the pointed end of the protrusion and thus the intensity of X-rays generated through collision of electrons against the metal target (8) increases. Consequently, an X-ray generator employing a hemimorphic crystal, which is capable of generating X-rays with practically sufficient intensity can be provided.

Abstract translation: X射线发生器包括用于在内部保持高真空或低压气体气氛的容器（1），半形晶体（4），升温/降温装置（3,5-7）和金属靶（8） 用于产生X射线。 在该X射线发生器中，金属靶（8）具有朝向半形晶体（4）突出的尖突起。 当通过使用升温/降低装置（3,5-7）升高/降低半晶体（4）的温度来产生X射线时，形成在半晶体晶体（4）和 金属靶（8）在突起的尖端处增加，因此通过电子与金属靶（8）的碰撞产生的X射线的强度增加。 因此，可以提供一种能够产生具有足够强度的X射线的采用半形晶体的X射线发生器。

公开(公告)号：US20100189221A1

公开(公告)日：2010-07-29

申请号：US12692472

申请日：2010-01-22

Applicant: Mark Eaton ,  Mitali More ,  Mike Olla

Inventor： Mark Eaton ,  Mitali More ,  Mike Olla

IPC: G21K5/08 ,  G21K5/02

CPC classification number: H01J35/065 ,  A61L2/082 ,  A61L2202/14 ,  A61L2202/22 ,  A61L2202/23 ,  A61L2202/24 ,  G21K1/025 ,  G21K5/02 ,  H01J35/06 ,  H01J35/08 ,  H01J35/14 ,  H01J35/16 ,  H01J35/18 ,  H01J2235/068 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/087 ,  H01J2235/163 ,  H01J2235/18

Abstract: The present disclosure describes a self-contained irradiator comprising at least one X-ray source inside a shielded enclosure, the one or more sources each operable to emit X-ray flux across an area substantially equal to the proximate facing surface area of material placed inside the enclosure to be irradiated. The irradiator may have multiple flat panel X-ray sources disposed, designed or operated so as to provide uniform flux to the material being irradiated. The advantages of the irradiator of the present disclosure include compactness, uniform flux doses, simplified thermal management, efficient shielding and safety, the ability to operate at high power levels for sustained periods and high throughput.

Abstract translation: 本公开描述了一种独立照射器，其包括在屏蔽外壳内的至少一个X射线源，所述一个或多个源可操作以在穿过基本上等于放置在内部的材料的面向近邻的表面区域的区域上发射X射线通量 要照射的外壳。 照射器可以具有多个设置，设计或操作的平板X射线源，以便向被照射的材料提供均匀的通量。 本公开的辐照器的优点包括紧凑性，均匀的通量剂量，简化的热管理，有效的屏蔽和安全性，在高功率水平下持续持续时间和高吞吐量的能力。

公开(公告)号：US20100067663A1

公开(公告)日：2010-03-18

申请号：US12557706

申请日：2009-09-11

Applicant: Joerg Freudenberger ,  Wolfgang Kutschera ,  Gunter Roehrich ,  Karin Soeldner

Inventor： Joerg Freudenberger ,  Wolfgang Kutschera ,  Gunter Roehrich ,  Karin Soeldner

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J1/16 ,  H01J35/14 ,  H01J2235/06

Abstract: A cathode HAS a cathode head in which a surface emitter is arranged that emits electrons upon application of a heating voltage. The surface emitter is fashioned as a parallel surface emitter with at least two emitter surfaces spaced apart from one another, to which at least one electrically conductive cutoff electrode is fed that is galvanically separated from the parallel surface emitter. Such a cathode has a good cutoff capability.

Abstract translation: 阴极HAS是阴极头，其中布置有施加加热电压时发射电子的表面发射体。 表面发射器被形成为具有彼此间隔开的至少两个发射极表面的平行表面发射器，至少一个导电截止电极被馈送到与该平行表面发射极电流分离的至少一个导电截止电极。 这样的阴极具有良好的截止能力。

公开(公告)号：US07668293B2

公开(公告)日：2010-02-23

申请号：US12468897

申请日：2009-05-20

Applicant: Peter Wraight ,  Arthur J. Becker ,  Joel L. Groves ,  Christian Stoller

Inventor： Peter Wraight ,  Arthur J. Becker ,  Joel L. Groves ,  Christian Stoller

IPC: G01B15/02 ,  H05G1/10

CPC classification number: H01J35/06 ,  H01J35/14 ,  H01J2235/0233 ,  H01J2235/06 ,  H01J2235/163 ,  H05G1/02 ,  H05G1/10

Abstract: An apparatus and method for determining the density and other properties of a formation surrounding a borehole using a high voltage x-ray generator. One embodiment comprises a stable compact x-ray generator capable of providing radiation with energy of 250 keV and higher while operating at temperatures equal to or greater than 125° C. In another embodiment, radiation is passed from an x-ray generator into the formation; reflected radiation is detected by a short spaced radiation detector and a long spaced radiation detector. The output of these detectors is then used to determine the density of the formation. In one embodiment, a reference radiation detector monitors a filtered radiation signal. The output of this detector is used to control at least one of the acceleration voltage and beam current of the x-ray generator.

Abstract translation: 一种用于使用高压x射线发生器确定围绕钻孔的地层的密度和其它性质的装置和方法。 一个实施例包括能够在等于或大于125℃的温度下工作时能够提供250keV及更高能量的辐射的稳定的紧凑型X射线发生器。在另一个实施例中，辐射从X射线发生器传送到地层 ; 反射辐射由短间隔的辐射检测器和长间隔的辐射检测器检测。 然后使用这些检测器的输出来确定地层的密度。 在一个实施例中，参考辐射检测器监视经滤波的辐射信号。 该检测器的输出用于控制x射线发生器的加速电压和射束电流中的至少一个。

公开(公告)号：US07623629B2

公开(公告)日：2009-11-24

申请号：US11547721

申请日：2005-03-31

Applicant: Yuichi Ito ,  Toru Moriike ,  Seiji Hosoya ,  Yoshihiko Dan ,  Makoto Otsuka

Inventor： Yuichi Ito ,  Toru Moriike ,  Seiji Hosoya ,  Yoshihiko Dan ,  Makoto Otsuka

IPC: H01J35/02 ,  H05G1/02

CPC classification number: H01J35/06 ,  H01J9/26 ,  H01J35/16 ,  H01J35/32 ,  H01J2235/023 ,  H01J2235/06 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/186

Abstract: A transmission type X-ray tube includes an electrode lead (4) holding a cathode filament (7) and a stem unit (1) to which a sealing member (5), an exhaust tube (2), and the like are attached by brazing, and an irradiation widow frame (8) having an X-ray irradiation window (9) attached by brazing.The other end side (52) of the sealing member (5) is attached to an open end (83) of the irradiation window frame (8) by welding.Thus, it is possible to obtain a high-quality transmission type X-ray tube having a long service life at a low cost.

Abstract translation: 透射型X射线管包括：保持阴极丝（7）的电极引线（4）和通过密封部件（5），排气管（2）等附着在其上的杆单元（1） 钎焊和具有通过钎焊附着的X射线照射窗（9）的照射寡妇框架（8）。 密封构件（5）的另一端（52）通过焊接附接到照射窗框架（8）的开口端（83）。 因此，可以以低成本获得具有长使用寿命的高质量透射型X射线管。

公开(公告)号：US20090284124A1

公开(公告)日：2009-11-19

申请号：US12427865

申请日：2009-04-22

Applicant: WOLFGANG KUTSCHERA ,  EBERHARD LENZ ,  ERNST NEUMEIER

Inventor： WOLFGANG KUTSCHERA ,  EBERHARD LENZ ,  ERNST NEUMEIER

IPC: H01J1/14

CPC classification number: H01J1/14 ,  H01J1/144 ,  H01J1/146 ,  H01J1/148 ,  H01J35/06 ,  H01J35/305

Abstract: A cathode has a thermionic emitter composed of a material that emits electrons upon being heated, and an emission layer, composed of a material that has a lower electron work function than the material of the thermionic emitter, is applied on said thermionic emitter so as to at least partially cover the thermionic emitter. Such a cathode has a high electron emission with simultaneously improved focusing and a longer lifespan.

Abstract translation: 阴极具有由在加热时发射电子的材料构成的热离子发射体，并且将由具有比热电子发射体的材料更低的电子功函数的材料构成的发射层施加到所述热离子发射极上，以便 至少部分地覆盖热离子发射器。 这种阴极具有高电子发射，同时改善了聚焦并且寿命更长。

公开(公告)号：US20090272915A1

公开(公告)日：2009-11-05

申请号：US12226077

申请日：2007-04-10

Applicant: Hitoshi Inaba ,  Yoshinori Okubo ,  Yoshiyuki Yagi ,  Shunichi Sato ,  Kazuhito Nishimura

Inventor： Hitoshi Inaba ,  Yoshinori Okubo ,  Yoshiyuki Yagi ,  Shunichi Sato ,  Kazuhito Nishimura

IPC: G21G5/00 ,  H01J35/08

CPC classification number: H05F3/06 ,  H01J35/06 ,  H01J2235/062 ,  H01J2235/081

Abstract: The present invention aims to suppress calorific value and prolong a lifetime of an apparatus that generates soft X-rays. Thus, the present invention provides a static elimination apparatus that includes an emitter as an electron emitting portion and a target, in which a thin film formed of diamond particles each having a particle size of 2 nm to 100 nm is formed on a surface of the emitter. The thin film has a diamond XRD pattern in an XRD measurement and, in a Raman spectroscopic measurement, a ratio of an sp3 bonding component to an sp2 bonding component within the film of 2.5 to 2.7:1. When a DC voltage is applied to the emitter, with a threshold electric field intensity of 1 V/μm or less, electrons larger in number than the prior art are emitted from the emitter and moreover, a temperature of the emitter is hardly increased, thus obtaining a longer lifetime.

Abstract translation: 本发明旨在抑制产生软X射线的装置的发热量并延长其使用寿命。 因此，本发明提供了一种静电消除装置，其包括作为电子发射部分的发射体和靶，其中形成有粒径为2nm至100nm的金刚石颗粒的薄膜在其表面上形成 发射器。 该薄膜在XRD测量中具有菱形XRD图案，并且在拉曼光谱测量中，膜中的sp3键合成分与sp2键合成分的比例为2.5〜2.7:1。 当发射极施加直流电压时，阈值电场强度为1 V / mum以下，从发射极发射的数量比现有技术大，而发射极的温度几乎不增加，因此， 获得更长的使用寿命。

公开(公告)号：US07539286B1

公开(公告)日：2009-05-26

申请号：US11942656

申请日：2007-11-19

Applicant: Steve Bandy ,  Gary F Virshup ,  Michael Curzon Green ,  James Russell Boye ,  Dennis Runnoe ,  Robert Clark Treseder ,  David Humber

Inventor： Steve Bandy ,  Gary F Virshup ,  Michael Curzon Green ,  James Russell Boye ,  Dennis Runnoe ,  Robert Clark Treseder ,  David Humber

IPC: H01J35/06

CPC classification number: H01J1/16 ,  H01J1/135 ,  H01J1/15 ,  H01J35/06 ,  H01J2201/2803 ,  H01J2201/281 ,  H01J2201/2867 ,  H01J2235/1212

Abstract: A filament assembly for use in an x-ray emitting device or other filament-containing device is disclosed. In one embodiment, an x-ray tube is disclosed, including a vacuum enclosure that houses both an anode having a target surface, and a cathode positioned with respect to the anode. The cathode includes a filament assembly for emitting a beam of electrons during tube operation. The filament assembly comprises a heat sink and a plurality of filament segments. The filament segments are configured for simultaneous emission of an electron beam for impingement on the target surface of the anode, and are electrically connected in series. Each filament segment includes first and second end portions that are thermally connected to the heat sink, and a central portion that can be configured with a modified work function for preferential electron emission.

Abstract translation: 公开了一种用于x射线发射装置或其它含灯丝装置的灯丝组件。 在一个实施例中，公开了一种X射线管，其包括容纳具有目标表面的阳极和相对于阳极定位的阴极的真空外壳。 阴极包括在管操作期间发射电子束的灯丝组件。 灯丝组件包括散热器和多个灯丝段。 灯丝段被配置为同时发射用于冲击阳极的靶表面的电子束，并且串联电连接。 每个细丝段包括热连接到散热器的第一和第二端部，以及可以配置有用于优先电子发射的修改功函数的中心部分。

公开(公告)号：US07512215B2

公开(公告)日：2009-03-31

申请号：US10554975

申请日：2004-04-23

Applicant: Edward James Morton ,  Russell David Luggar ,  Paul De Antonis

Inventor： Edward James Morton ,  Russell David Luggar ,  Paul De Antonis

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J35/04 ,  H01J35/14 ,  H01J2235/068

Abstract: An X-ray tube includes an emitter wire (18) enclosed in a suppressor(14, 16). An extraction grid comprises a number of parallel wires (20) extending perpendicular to the emitter wire, and a focusing grid comprises a number of wires (22) parallel to the grid wires (20) and spaced apart at equal spacing to the grid wires (20). The grid wire are connected by means of switches to a positive extracting potential or a negative inhibiting potential, and the switches are controlled so that at any one time a pair of adjacent grid wires (22) are connected together to form an extracting pair, which produce an electron beam. The position of the beam is moved by switching different pairs of grid wires to the extracting potential.

Abstract translation: X射线管包括封闭在抑制器（14,16）中的发射极线（18）。 提取栅格包括垂直于发射极线延伸的多条平行线（20），并且聚焦栅格包括平行于栅格线（20）的数个线（22）并以等间距与网格线（ 20）。 栅格线通过开关连接到正提取电位或负抑制电位，并且开关被控制，使得在任何时刻一对相邻的栅格线（22）连接在一起以形成提取对，其中 产生电子束。 通过将不同的栅格线对切换到提取电位来移动光束的位置。