公开(公告)号：US20170148607A1

公开(公告)日：2017-05-25

申请号：US15346761

申请日：2016-11-09

Applicant: Carestream Health, Inc.

Inventor： Xiaohui WANG ,  Michael K. ROGERS

IPC: H01J35/10 ,  H01J35/06

CPC classification number: H01J35/20 ,  H01J9/39 ,  H01J35/065 ,  H01J2201/30469 ,  H01J2235/062 ,  H01J2235/205

Abstract: An X-ray tube has a housing enclosing a vacuum chamber. There is a primary field-emission cathode within the vacuum chamber, a secondary cathode within the vacuum chamber, spaced apart from the primary cathode, and an anode target within the vacuum chamber.

公开(公告)号：US20140241492A1

公开(公告)日：2014-08-28

申请号：US14189952

申请日：2014-02-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Miki Tamura ,  Kazuyuki Ueda

IPC: A61B6/02

CPC classification number: A61B6/025 ,  A61B6/4007 ,  A61B6/4085 ,  H01J35/06 ,  H01J35/12 ,  H01J35/16 ,  H01J2201/30469 ,  H01J2235/068 ,  H01J2235/166 ,  H01J2235/168 ,  H01J2235/186 ,  H01J2235/205

Abstract: A multiradiation generation apparatus according to the present invention includes a plurality of radiation sources arranged in a row. Each of the radiation sources includes an electron source configured to emit electrons and a target unit configured to generate radiation upon receiving electrons emitted from the electron source. At least one of the radiation sources is a dual-purpose radiation source used for both tomosynthesis imaging and non-tomosynthesis imaging, and the other radiation sources are single-purpose radiation sources used only for tomosynthesis imaging.

Abstract translation: 根据本发明的多辐射发生装置包括排列成一排的多个辐射源。 每个辐射源包括被配置为发射电子的电子源和被配置为在接收从电子源发射的电子时产生辐射的目标单元。 至少一个辐射源是用于断层成像成像和非断层成像成像的双重用途辐射源，而其他辐射源是仅用于断层成像成像的单用途辐射源。

公开(公告)号：US20120207269A1

公开(公告)日：2012-08-16

申请号：US13501464

申请日：2010-10-21

Applicant: Rolf Karl Otto Behling

Inventor： Rolf Karl Otto Behling

IPC: H01J35/04 ,  G01N23/04 ,  H01J35/30 ,  A61B6/03 ,  B82Y99/00

CPC classification number: H01J35/04 ,  H01J35/14 ,  H01J35/16 ,  H01J35/20 ,  H01J35/30 ,  H01J2235/068 ,  H01J2235/168 ,  H01J2235/205

Abstract: The present invention relates to X-ray generating technology in general. Providing X-ray generating device internal voltage sources or potentials may help reduce necessary feed-throughs into an evacuated envelope of an X-ray generating device. Consequently, an X-ray generating device comprising an electron scattering element is presented. According to the present invention, an X-ray generating device is provided, comprising an electron emitting element 16, an electron collecting element 20 and an electron scattering element 42. A primary electron beam 17a is arrangeable between the electron emitting element 16 and the electron collecting element 20. The electron emitting element 16 and the electron collecting element 20 are operatively coupled for generating X-radiation 14.

Abstract translation: 本发明一般涉及X射线产生技术。 提供X射线产生装置的内部电压源或电位可以有助于减少必要的馈通到X射线产生装置的抽真空的外壳中。 因此，提出了包括电子散射元件的X射线产生装置。 根据本发明，提供一种X射线产生装置，其包括电子发射元件16，电子收集元件20和电子散射元件42.一个电子束17a可布置在电子发射元件16和电子 电子发射元件16和电子收集元件20可操作地耦合以产生X辐射14。

公开(公告)号：US20100239071A1

公开(公告)日：2010-09-23

申请号：US12602177

申请日：2008-05-21

Applicant: Ryozo Takeuchi ,  Hiroshi Morita ,  Yoshitaka Seki ,  Yoshiaki Tsumuraya

Inventor： Ryozo Takeuchi ,  Hiroshi Morita ,  Yoshitaka Seki ,  Yoshiaki Tsumuraya

IPC: H01J35/16 ,  H01J35/00

CPC classification number: H01J35/16 ,  H01J35/20 ,  H01J2235/205

Abstract: The present invention provides an X-ray tube that improves and stabilizes a withstanding voltage performance and thus ensures the reliability of a product.The present invention is an X-ray tube comprising a cathode for emitting electrons, an anode for emitting an X-ray which an irradiation of the electrons emitted from the cathode causes, and a glass tube for confining the cathode and the anode in a vacuum, wherein an inside surface of the glass tube is covered with a glass thin film having a melting point lower than that of a glass of the glass tube and particles adhered to the glass tube by the glass thin film.

Abstract translation: 本发明提供一种X射线管，其能够改善和稳定耐压性能，从而确保产品的可靠性。 本发明是一种包括用于发射电子的阴极的X射线管，用于发射从阴极发射的电子的照射引起的X射线的阳极和用于将阴极和阳极限制在真空中的玻璃管 其特征在于，所述玻璃管的内表面被玻璃薄膜覆盖，所述玻璃薄膜的熔点低于所述玻璃管的玻璃的熔点，所述玻璃薄片的玻璃薄片附着在所述玻璃管上。

公开(公告)号：US20050074093A1

公开(公告)日：2005-04-07

申请号：US10811938

申请日：2004-03-30

Applicant: Johann Kindlein ,  Rudolf Scholte

Inventor： Johann Kindlein ,  Rudolf Scholte

IPC: G21K5/02 ,  A61N5/10 ,  G21K5/08 ,  H01J35/06 ,  H01J35/20 ,  H01J35/32 ,  H01J35/00 ,  H01J5/18 ,  H01J35/22

CPC classification number: A61N5/1001 ,  H01J35/065 ,  H01J35/32 ,  H01J2235/186 ,  H01J2235/205

Abstract: The invention relates to a solid state brachytherapy applicator for performing radiation therapy treatment in an animal body, said applicator at least comprising an X-ray emitting surface composed of: a vacuum cavity containing a cathode and an anode spaced apart at some distance from each other; emitting means for emitting free electrons from the cathode; electric field means for applying during use a high-voltage electric field between said cathode and said anode for accelerating said emitted free electrons towards said anode; wherein said vacuum cavity being at least partly transparent to X-ray radiation emitted by said anode. The invention furthermore relates to a radiation therapy treatment system for performing radiation therapy treatment in an animal body and to a method for performing radiation therapy treatment in an animal body using a solid state brachytherapy applicator according to the invention. According to the invention said vacuum cavity is bound by first and second plate-shaped elements spaced some distance from each other, said first plate-shaped element serving as cathode and said second plate-shaped element serving as anode.

Abstract translation: 本发明涉及用于在动物体内进行放射治疗治疗的固态近距离放射疗法施加器，所述施用器至少包括由X射线发射表面组成的真空腔，所述真空腔包含彼此间隔一定距离的阴极和阳极 ; 用于从阴极发射自由电子的发射装置; 电场装置，用于在所述阴极和所述阳极之间施加高电压电场，用于将所述发射的自由电子加速到所述阳极; 其中所述真空腔对于由所述阳极发射的X射线辐射至少部分透明。 本发明还涉及一种用于在动物体内进行放射治疗治疗的放射线治疗治疗系统和使用根据本发明的固态近距离放射疗法施加器在动物体内进行放射治疗治疗的方法。 根据本发明，所述真空腔由彼此隔开一定距离的第一和第二板状元件结合，所述第一板状元件用作阴极，所述第二板状元件用作阳极。

公开(公告)号：US6134300A

公开(公告)日：2000-10-17

申请号：US186555

申请日：1998-11-05

Applicant: James E. Trebes ,  Perry M. Bell ,  Ronald B. Robinson

Inventor： James E. Trebes ,  Perry M. Bell ,  Ronald B. Robinson

IPC: A61N5/10 ,  H01J35/32 ,  H01J35/06

CPC classification number: A61N5/1001 ,  H01J35/32 ,  H01J2235/205

Abstract: A miniature x-ray source utilizing a hot filament cathode. The source has a millimeter scale size and is capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature source consists of a compact vacuum tube assembly containing the hot filament cathode, an anode, a high voltage feedthru for delivering high voltage to the cathode, a getter for maintaining high vacuum, a connector for initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is fabricated from highly x-ray transparent materials, such as sapphire, diamond, or boron nitride.

Abstract translation: 使用热丝阴极的微型x射线源。 该源具有毫米刻度尺寸，并且能够在宽范围的x射线能量上产生广谱X射线发射。 该微型光源包括一个紧凑的真空管组件，其包含热丝阴极，阳极，用于向阴极输送高电压的高压馈电，用于保持高真空的吸气剂，初始真空泵下降和压接的连接器， 以及用于将紧凑型高压电缆连接到高压馈电的高压连接。 真空管壁的至少一部分由诸如蓝宝石，金刚石或氮化硼的高x射线透明材料制成。

公开(公告)号：US6064718A

公开(公告)日：2000-05-16

申请号：US162150

申请日：1998-09-29

Applicant: Glenn E. Holland ,  Craig N. Boyer ,  John F. Seely

Inventor： Glenn E. Holland ,  Craig N. Boyer ,  John F. Seely

IPC: H01J35/00

CPC classification number: H01J35/00 ,  H01J2235/16 ,  H01J2235/205

Abstract: A field emission X-ray tube is provided for use in a mobile X-ray machine.n evacuated ceramic housing having a convoluted interior shape for dissipating sparks surrounds the components of the field emission tube. A cathode and, an anode which emits x-rays, are located within the ceramic housing. A hollow anode tube is connected to the anode at one end and a vacuum pinch off element at the other end. Stray radiation is attenuated by a lead ring positioned inside of the ceramic housing.

Abstract translation: 提供了用于移动X射线机的场致发射X射线管。 具有用于消散火花的卷积内部形状的真空陶瓷壳体围绕场致发射管的部件。 阴极和发射x射线的阳极位于陶瓷壳体内。 中空阳极管在一端连接到阳极，在另一端连接真空夹紧元件。 杂散辐射由位于陶瓷壳体内部的引线环衰减。

公开(公告)号：US3322993A

公开(公告)日：1967-05-30

申请号：US36867464

申请日：1964-05-19

Applicant: CHIRANA PRAHA

Inventor： MIROSLAV VINOPAL

IPC: H01J7/18 ,  H01J9/38 ,  H01J35/20

CPC classification number: H01J9/38 ,  H01J7/18 ,  H01J7/186 ,  H01J35/20 ,  H01J2235/205

公开(公告)号：US20170365439A1

公开(公告)日：2017-12-21

申请号：US15535722

申请日：2015-12-22

Applicant: MEIDENSHA CORPORATION

Inventor： Daizo TAKAHASHI ,  Toshimasa FUKAI ,  Toru TANIMIZU

IPC: H01J35/06 ,  H01J1/304 ,  H01J35/12 ,  H01J35/16

CPC classification number: H01J35/065 ,  H01J1/304 ,  H01J35/12 ,  H01J35/16 ,  H01J2235/205

Abstract: In a vacuum chamber (1), an emitter (3) and a target (7) are opposed to each other. A guard electrode (5) is disposed around an outer circumference of an electron generating portion (31) of the emitter (3). A supporting part (4) supports the emitter (3) movably in an end-to-end direction of the vacuum chamber (1). Reforming treatment is performed on the guard electrode (5) by operating the supporting part (4), moving the emitter (3) to an open end (21) side (non-discharge position) and applying a voltage to repeatedly effect discharge on the guard electrode (5) in a state where field emission from the electron generation portion (31) is suppressed. After the reforming treatment, the supporting part (4) is again operated. The emitter (3) is moved to an open end (22) side (discharge position) and placed in a state where field emission from the electron generation portion (31) is allowed.

公开(公告)号：US20170213685A1

公开(公告)日：2017-07-27

申请号：US15233198

申请日：2016-08-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Tae KANG ,  Yoon-Ho SONG ,  Jae-Woo KIM ,  Jin-Woo JEONG

IPC: H01J35/06

CPC classification number: H01J37/063 ,  H01J7/18 ,  H01J7/186 ,  H01J9/39 ,  H01J19/48 ,  H01J21/20 ,  H01J29/46 ,  H01J29/488 ,  H01J29/50 ,  H01J35/06 ,  H01J35/065 ,  H01J35/165 ,  H01J35/20 ,  H01J2201/196 ,  H01J2201/317 ,  H01J2209/385 ,  H01J2209/3893 ,  H01J2229/4827 ,  H01J2229/4831 ,  H01J2229/94 ,  H01J2235/068 ,  H01J2235/205 ,  H01J2237/032 ,  H01J2237/036 ,  H01J2237/06375 ,  H01J2237/1825

Abstract: Disclosed is an x-ray tube including a hybrid electron emission source, which uses, as an electron emission source, a cathode including both a field electron emission source and a thermal electron emission source. An x-ray tube includes an electron emission source emitting an electron beam, and a target part including a target material that emits an x-ray as the emitted electron beam collides with the target part, wherein the electron emission source includes a thermal electron emission source and a field electron emission source, and emits the electron beam by selectively using at least one of the thermal electron emission source and the field electron emission source.