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公开(公告)号：WO2019166161A1
公开(公告)日：2019-09-06
申请号：PCT/EP2019/051860
申请日：2019-01-25
Applicant: SIEMENS HEALTHCARE GMBH
Inventor： DEURINGER, Josef , FREUDENBERGER, Jörg
Abstract: Die Erfindung betrifft eine Elektronen-Emissionsvorrichtung, umfassend wenigstens einen Elektronen-Emitter (2) mit wenigstens einer Emissionsfläche (3) und wenigstens ein Sperrgitter (5), das zur Emissionsfläche (3) des Elektronen-Emitters (2) beabstandet ist und eine vorgebbare Anzahl von einzeln ansteuerbaren Gittersegmenten (G 1 – G 7 , G N ) aufweist. Erfindungsgemäß ist an jedes der Gittersegmente (G 1 – G 7 , G N ) jeweils wenigstens eine individuell vorgebbare Gitterspannung anlegbar. Eine derartige Elektronen-Emissionsvorrichtung erlaubt auf einfache Weise eine Anpassung der Bildqualität bei geringstmöglicher Anodenbelastung.
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公开(公告)号：WO2018184904A1
公开(公告)日：2018-10-11
申请号：PCT/EP2018/057715
申请日：2018-03-27
Applicant: EXCILLUM AB
Inventor： TAKMAN, Per , TUOHIMAA, Tomi
Abstract: A method for generating X-ray radiation is disclosed. The method comprises providing (10) a liquid target (J) in a chamber (120), directing (20) an electron beam (132) towards the liquid target such that the electron beam interacts with the liquid target to generated X-ray radiation (134), estimating (30) a number of particles produced from the interaction between the electron beam and the liquid target by measuring a number of positively charged particles in the chamber and eliminating a contribution from scattered electrons to the estimated number of particles, and controlling (40) the electron beam, and/or a temperature in a region of the liquid target in which the electron beam interacts with the target, such that the estimated number of particles is below a predetermined limit. A corresponding X-ray source is also disclosed.
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公开(公告)号：WO2018165222A1
公开(公告)日：2018-09-13
申请号：PCT/US2018/021236
申请日：2018-03-06
Applicant: BECSIS, LLC
Inventor： BORUTA, Nicholas , BORUTA, Michael
IPC: H01J35/04
Abstract: A method of generating X-rays includes providing a field-emission diode including two electrodes separated by a gap, a first conductor, a first insulator on a surface of the first conductor, a second insulator on a surface of the first insulator that is not in contact with the first conductor, and a second conductor. The first insulator and the second insulator have trapped electrons at an interface therebetween, and are provided between the first conductor and the second conductor. The method further includes moving the second conductor with respect to the first conductor to induce electrons on the second conductor via electrostatic induction; accelerating the induced electrons across the gap of the field-emission diode; and striking a target with accelerated electrons to produce an X-ray. The first insulator and the second insulator are not the same.
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公开(公告)号：WO2014177308A1
公开(公告)日：2014-11-06
申请号：PCT/EP2014/054407
申请日：2014-03-07
Applicant: SIEMENS AKTIENGESELLSCHAFT
Inventor： GOSSMANN-LEVCHUK, Svetlana , HEID, Oliver , HUGHES, Timothy
CPC classification number: H01J35/18 , A61B6/4035 , H01J35/16 , H01J2235/06 , H01J2235/086 , H01J2235/1225 , H01J2235/168
Abstract: Röntgenquelle und bildgebendes System Es wird eine Röntgenquelle (1) mit einem evakuierbaren Außengehäuse (3) mit wenigstens einem röntgenstrahldurchlässigen Strahlaustrittsfenster (5), einer Elektronenquelle (7), einer Anode (13) und einem Kollektor (19) zum Auffangen von die Anode durchdringenden Elektronen angegeben. Der Kollektor ist Teil eines elektrischen Stromkreises zum Aufbringen eines negativen Potentials an der Anode, und das Strahlungsfenster ist so angeordnet, dass Röntgenstrahlung (9) durch das Strahlungsfenster hindurch auskoppelbar ist, welche in einem Winkel (a) von 130 Grad bis 230 Grad zur Elektronenstrahlrichtung aus der Anode austritt. Weiterhin wird ein bildgebendes System mit einer erfindungsgemäßen Röntgenquelle, einer Anordnung zur Aufnahme eines zu untersuchenden Objekts und einem Röntgendetektor angegeben.
Abstract translation: X射线源和成像系统是（1）具有一个抽真空的外壳体（3）与至少一个X射线透射光线出口（5），电子源（7），阳极（13）和集电极（19），用于收集所述阳极穿透的X射线源 电子表示。 集电极是用于施加负电位，向所述阳极和所述辐射窗口的电气电路的一部分成一角度，通过该被布置成使得X射线（9）可通过辐射窗口耦合出的（a）的130度至230度的电子束方向 离开阳极。 此外，根据本发明的具有X射线源的成像系统，要被检查用于接收对象的布置，并且设置X射线检测器。
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公开(公告)号：WO2014017766A1
公开(公告)日：2014-01-30
申请号：PCT/KR2013/006253
申请日：2013-07-12
Applicant: 경희대학교 산학협력단
CPC classification number: H01J35/06 , H01J35/04 , H01J35/065 , H01J2201/30469 , H01J2235/062 , H05G1/52
Abstract: 본 발명은 디지털 엑스레이 소스를 공개한다. 이 장치는 X-선을 방출시키는 엑스레이 발생부를 구비하는 엑스레이 소스에 있어서, 상기 엑스레이 발생부는, 캐소드 전극; 상기 캐소드 전극 상측에 형성되는 에미터; 상기 에미터 상측에 위치하는 애노드 전극; 상기 에미터와 상기 애노드 전극 사이에 위치하는 게이트 전극; 상기 에미터와 상기 애노드 전극 사이에 위치하는 제1 및 제2 포커싱 전극; 및 상기 캐소드 전극에 상기 게이트 전극 및 상기 제1 및 제2 포커싱 전극의 위치를 고정 및 조절할 수 있는 하나 이상의 절연 튜브를 구비하고 상기 상기 캐소드 전극, 상기 게이트 전극, 상기 제1 및 제2 포커싱 전극을 전선과 각각 개별적으로 절연 및 체결하는 전극 체결부를 포함하는 것을 특징으로 한다.
Abstract translation: 公开了一种数字X射线源。 该装置是包括用于发射X射线的X射线产生单元的X射线源，X射线产生单元包括：阴极电极; 阴极上形成的发射极; 位于发射极上的阳极; 位于发射极和阳极之间的栅电极; 位于发射极和阳极之间的第一和第二聚焦电极; 以及电极接合单元，其包括至少一个绝缘管，其能够将所述栅电极和所述第一和第二聚焦电极的位置固定并调整到所述阴极电极，并且分别绝缘并接合所述阴极电极，所述栅电极以及所述第一和第二 聚焦电极从电线和电线。
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Patent Agency Ranking
公开(公告)号：WO2013185829A1
公开(公告)日：2013-12-19
申请号：PCT/EP2012/061352
申请日：2012-06-14
Applicant: EXCILLUM AB , HEMBERG, Oscar , TUOHIMAA, Tomi , TAKMAN, Per
Inventor： HEMBERG, Oscar , TUOHIMAA, Tomi , TAKMAN, Per
CPC classification number: H01J29/62 , G21K1/08 , G21K5/04 , H01J35/04 , H01J35/08 , H01J35/14 , H01J2235/082 , H01J2235/16
Abstract: In an electron irradiation system (1), a gas-tight housing (60) encloses a cathode region (10) and an irradiation region (20), which communicate through at least an aperture (22). In the cathode region, there is arranged a high-voltage cathode (11) for emitting an electron beam. In the irradiation region, there is an irradiation site (21) arranged to accommodate a stationary or moving object to be irradiated. The migration of cathode-degrading debris is limited by means of an electric field (E) designed to prevent positively charged particles from entering the cathode region via the aperture. The invention can be embodied with an axial electric field, which realizes an energy threshold, or a transversal field which deflects charged particles away from trajectories leading into the cathode region.
Abstract translation: 在电子照射系统（1）中，气密壳体（60）包围通过至少一个孔（22）连通的阴极区域（10）和照射区域（20）。 在阴极区域设置有用于发射电子束的高电压阴极（11）。 在照射区域中，设有用于容纳被照射的静止或移动物体的照射部位（21）。 阴极降解碎屑的迁移通过设计成防止带正电荷的颗粒经由孔径进入阴极区域的电场（E）来限制。 本发明可以用实现能量阈值的轴向电场或使带电粒子偏离导入阴极区域的轨迹的横向场来实现。
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公开(公告)号：WO2010061325A1
公开(公告)日：2010-06-03
申请号：PCT/IB2009/055174
申请日：2009-11-19
Applicant: PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , KONINKLIJKE PHILIPS ELECTRONICS N.V. , BEHLING, Rolf, K., O.
Inventor： BEHLING, Rolf, K., O.
CPC classification number: H05G1/36 , H01J35/04 , H01J35/08 , H01J35/26 , H01J2235/1204
Abstract: An X-ray tube (1), a medical device (21) comprising an X-ray tube, a program element and a computer readable medium are proposed. The X-ray tube comprises a target (3) adapted for generating X-rays upon impact of an electron beam (7) on a focal spot (9), and a further electrode (11).The further electrode (11) is arranged and adapted for measuring thermo ionic electron emission from the target (3). The X-ray tube is adapted for providing a signal relating to a temperature of the target based on thermo ionic electron emission measured by the further electrode (11).The medical device (21) comprises an X-ray tube (1) according to the invention and a temperature evaluation unit (23) connected to the X-ray tube.
Abstract translation: 提出了一种X射线管（1），包括X射线管，程序元件和计算机可读介质的医疗装置（21）。 X射线管包括适于在电子束（7）撞击焦点（9）上产生X射线的靶（3）和另外的电极（11）。另外的电极（11）被布置 并用于测量来自目标（3）的热离子电子发射。 所述X射线管适于基于由所述另外的电极（11）测量的热离子电子发射来提供与所述靶的温度相关的信号。所述医疗装置（21）包括根据 本发明和连接到X射线管的温度评估单元（23）。
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8.发明申请
公开(公告)号：WO2009078581A2
公开(公告)日：2009-06-25
申请号：PCT/KR2008/006683
申请日：2008-11-13
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KIM, Dae Jun , SONG, Yoon Ho , JEONG, Jin Woo
Inventor： KIM, Dae Jun , SONG, Yoon Ho , JEONG, Jin Woo
IPC: H01J35/04
CPC classification number: H01J35/065 , H01J35/14 , H01J35/16 , H01J2235/062 , H01J2235/068 , H01J2235/087 , H01J2235/164 , H01J2235/186
Abstract: A microminiature X-ray tube with a triode structure using a nano emitter is provided, which can increase a field emission region as much as possible by means of nano emitters fine-patterned in a cathode to not only increase an emission current per unit area as much as possible but secure high electrical characteristics, reliability, and structural stability by means of a cover and a bonding material. In addition, gate holes having a macro structure can be formed in the gate to promote electron beam focusing by means of the gate without using a separate focusing electrode and to prevent a leakage current from occurring on the gate. Further, an auxiliary electrode can be formed on a top or an inner surface of a cover applied for structural stability to further promote the electron beam focusing and to control the output amounts per individual X-ray tubes output according to current switching to be equal to each other.
Abstract translation: 提供了一种具有使用纳米发射极的三极管结构的微型X射线管，其可以通过在阴极中精细图案化的纳米发射体尽可能多地增加场发射区域，以便不仅增加每单位面积的发射电流 尽可能地通过盖和接合材料确保高的电气特性，可靠性和结构稳定性。 此外，可以在栅极中形成具有宏观结构的栅极孔，以通过栅极促进电子束聚焦，而不使用单独的聚焦电极并防止在栅极上发生漏电流。 此外，可以在用于结构稳定性的盖的顶表面或内表面上形成辅助电极，以进一步促进电子束聚焦，并且根据电流切换来控制每个X射线管输出的输出量等于 彼此。
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公开(公告)号：WO2005119730A3
公开(公告)日：2006-06-01
申请号：PCT/US2005018156
申请日：2005-05-23
Applicant: CABOT MICROELECTRONICS CORP
Inventor： LESIAK STANLEY , BUSTA HEINZ , ZWICKER BRUCE
CPC classification number: H01J35/065 , G21K5/02 , H01J35/08 , H01J2235/062 , H01J2235/068 , H01J2235/086 , H01J2235/163
Abstract: An improved x-ray generation system produces a converging or diverging radiation pattern particularly suited for substantially cylindrical or spherical treatment devices. In an embodiment, the system comprises a closed or concave outer wall about a closed or concave inner wall. An electron emitter is situated on the inside surface of the outer wall, while a target film is situated on the outside surface of the inner wall. An extraction voltage at the emitter extracts electrons which are accelerated toward the inner wall by an acceleration voltage. Alternately, electron emission may be by thermionic means. Collisions of electrons with the target film causes x-ray emission, a substantial portion of which is directed through the inner wall into the space defined within. In an embodiment, the location of the emitter and target film are reversed, establishing a reflective rather than transmissive mode for convergent patterns and a transmissive mode for divergent patterns.
Abstract translation: 改进的x射线产生系统产生特别适用于大致圆柱形或球形处理装置的会聚或发散辐射图。 在一个实施例中，系统包括围绕封闭或凹入的内壁的封闭或凹入的外壁。 电子发射体位于外壁的内表面上，而靶膜位于内壁的外表面上。 发射极处的提取电压提取通过加速电压向内壁加速的电子。 或者，电子发射可以通过热电子方式。 电子与目标膜的碰撞导致x射线发射，其大部分被引导通过内壁进入限定在其内的空间。 在一个实施例中，发射器和目标膜的位置被反转，建立用于会聚图案的反射而不是透射模式和用于发散图案的透射模式。
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公开(公告)号：WO02021564A1
公开(公告)日：2002-03-14
申请号：PCT/SE2001/001913
申请日：2001-09-07
CPC classification number: A61N5/1001 , A61N5/1002 , H01J35/04 , H01J35/065 , H01J2235/164 , H01J2235/186
Abstract: A miniaturized X-ray source is disclosed. It comprises an anode structure (43) and a cathode structure (41), each having an essentially pointed portion (44, 42), wherein at least the pointed portions being directed towards each other and enclosed in a vacuum cavity (49). The anode structure has an essentially dome shaped structure having a first essentially flat part (46) surrounded by a second essentially flat part (48), connected by a wall section (47), such that said first and second parts are located at different levels. The pointed portion is provided on said first flat portion and having an extension such that the apex of said pointed portion does not extend beyond the level of said second essentially flat part. A method of making an X-ray source is also disclosed.
Abstract translation: 公开了一种小型化X射线源。 它包括阳极结构（43）和阴极结构（41），每个阳极结构（43）具有基本上尖的部分（44,42），其中至少尖端部分被引导朝向彼此并封闭在真空腔（49）中。 阳极结构具有基本上圆顶形的结构，其具有由第二基本上平坦的部分（48）围绕的第一基本上平坦的部分（46），所述第二基本上平坦的部分（48）由壁部分（47）连接，使得所述第一和第二部分位于不同的水平 。 尖部设置在所述第一平坦部分上并且具有延伸部，使得所述尖部的顶点不延伸超过所述第二基本平坦部分的高度。 还公开了制造X射线源的方法。
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