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    • 1. 发明申请
    • RADIATION SOURCE
    • WO2019145703A1
    • 2019-08-01
    • PCT/GB2019/050178
    • 2019-01-23
    • SMITHS HEIMANN SASVIENNE, Aymeric
    • JEGOU, GuillaumeMIELOT, Christophe
    • H01J35/08
    • H01J35/116H01J2235/086
    • In some embodiments, it is described some embodiments, it is described an inspection radiation source comprising: • an electron accelerator (2) for generating an electron current (20); and • a target (3) for the electron current, comprising: • a first part (31) configured to: • be at least partly exposed to the electron current on an impact area (50) having a first width (wl) in a direction substantially perpendicular to the electron current, and • inhibit propagation of the electron current; and • a second part (32) having a second width (w2) in the direction substantially perpendicular to the electron current, the second width of the second part being smaller than the first width of the impact area, the second part being configured to: • be at least partly exposed to the electron current, and • generate inspection radiation (30) by emitting X-rays in response to being exposed to the electron current, wherein • the first part comprises a first material having a first atomic number, and • the second part comprises a second material having a second atomic number greater than the first atomic number.
    • 2. 发明申请
    • X-RAY SOURCES USING LINEAR ACCUMULATION
    • 使用线性累积的X射线源
    • WO2015084466A3
    • 2015-07-30
    • PCT/US2014056688
    • 2014-09-19
    • SIGRAY INC
    • YUN WENBINGLEWIS SYLVIA JIA YUNKIRZ JANOSLYON ALAN FRANCIS
    • H01J35/14H05G1/32
    • H01J35/08H01J2235/084H01J2235/086
    • This application discloses a compact source for high brightness x-ray generation. Higher brightness is achieved through electron beam bombardment of multiple regions aligned with each other to achieve a linear accumulation of x-rays. This is achieved by aligning discrete x-ray emitters, or through use of novel x-ray targets comprising a number of microstructures of x-ray generating materials fabricated in close thermal contact with a substrate with high thermal conductivity. This allows heat to be more efficiently drawn out of the x-ray generating material, and allows bombardment of this material with higher electron density and/or higher energy electrons, leading to greater x-ray brightness. The orientation of the microstructures allows the use of an on-axis collection angle, allowing accumulation of x-rays from several microstructures to be aligned, appearing to have a single origin, also known as "zero-angle" x-ray emission.
    • 本申请公开了一种用于高亮度x射线产生的紧凑型光源。 通过彼此对准的多个区域的电子束轰击实现更高的亮度,以实现x射线的线性积累。 这通过对准离散的x射线发射器,或者通过使用包含多个与具有高热导率的基板紧密热接触制造的x射线产生材料的微结构的新型x射线靶来实现。 这样可以更有效地将热量从X射线产生材料中拉出,并允许以更高电子密度和/或更高能量的电子轰击该材料,导致更大的x射线亮度。 微结构的方向允许使用轴上收集角,允许来自若干微结构的X射线的聚集被对准,看起来具有单一原点,也称为“零角”x射线发射。
    • 3. 发明申请
    • ELECTRON EMITTING CONSTRUCT CONFIGURED WITH ION BOMBARDMENT RESISTANT
    • 电子发射构造配置有离子耐火材料
    • WO2015079393A1
    • 2015-06-04
    • PCT/IB2014/066361
    • 2014-11-26
    • NANOX IMAGING PLCMOALEM, Moshe
    • KENMOTSU, HidenoriMASUYA, HitoshiIIDA, Koichi
    • H01J35/02
    • H01J35/065H01J1/3042H01J35/08H01J35/14H01J2235/062H01J2235/086
    • An electron emitting construct design of an x-ray emitter device is disclosed configured to facilitate radiation in the X-ray spectrum and further relates to preventing a cold cathode from being damaged by ion bombardment in high-voltage applications. The electron beam emitted by the emitting construct is focused and accelerated by an electrical field towards an electron anode target operable to attract electron beam to an associated focal spot, wherein the generated ions are accelerated along a trajectory perpendicular to the electric field in parallel to the surface of the electron anode target. More specifically, the present invention relates to realizing a robust cold cathode to avoid ion bombardments damages in high-voltage applications, by means of setting non-emitter zone surrounded by or set between the emitter areas. The system is further configured to provide an angled target anode or a stepped target anode to further reduce the ion bombardment damage.
    • 公开了一种x射线发射器件的电子发射结构设计,其被配置为便于X射线光谱中的辐射,并且还涉及防止冷阴极在高压应用中被离子轰击所损坏。 由发射结构发射的电子束通过电场聚焦并加速到电子阳极靶,可操作以将电子束吸引到相关联的焦点,其中所产生的离子沿垂直于电场的轨迹被平行于 电子阳极靶的表面。 更具体地,本发明涉及通过设置在发射极区域之间包围或设置的非发射极区域来实现坚固的冷阴极,以避免高压应用中的离子轰击损伤。 该系统还被配置为提供成角度的目标阳极或阶梯目标阳极,以进一步减少离子轰击损伤。
    • 5. 发明申请
    • X-RAY SOURCE, HIGH-VOLTAGE GENERATOR, ELECTRON BEAM GUN, ROTARY TARGET ASSEMBLY, ROTARY TARGET, AND ROTARY VACUUM SEAL
    • X射线源,高压发生器,电子束枪,旋转靶组件,旋转靶和旋转真空密封
    • WO2014140099A2
    • 2014-09-18
    • PCT/EP2014/054837
    • 2014-03-12
    • NIKON METROLOGY NV
    • HADLAND, Roger
    • H01J35/02
    • H01J35/025F16C33/768F16C35/042F16J15/16H01J29/48H01J35/04H01J35/06H01J35/101H01J35/106H01J35/108H01J35/16H01J37/065H01J2235/0236H01J2235/083H01J2235/086H01J2235/087H01J2235/1046H01J2235/1204H01J2235/1262H01J2235/20H01J2237/2482H02M1/32H02M7/106H05G1/12
    • Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.
    • 本文公开了一种用于x射线源,x射线枪,电子束装置,旋转真空密封件,用于x射线源的靶组件,旋转x射线发射靶和 一个x射线源。 这些各个方面可以单独地和/或一起实现能够在高达500kV及以上的能量下运行的x射线源,其适用于商业和研究的X射线应用如计算机断层摄影。 特别地,高电压发生器包括电连接在第一电压倍增器和第二电压倍增器之间的屏蔽电极。 电子束装置包括控制光电检测器和光电发射器,其间布置有透明导电屏蔽。 旋转真空密封件包括位于中间位于用于旋转轴的孔的高压和低压端之间的位置的可泵送室。 旋转目标组件被构造成使得当轴承壳体和真空壳体之间的扭矩超过预定扭矩时,轴承壳体相对于真空壳体旋转。 旋转X射线发射目标具有支撑在轮毂上的多个目标板,所述板布置在轮毂上以围绕轮毂的轴线旋转提供环形目标区域。 X射线枪设置有相对于与电子束发射阴极不同的x射线靶保持在电位差的屏蔽电极。
    • 7. 发明申请
    • 다중타겟 및 다중전자빔을 구비한 엑스선 발생장치
    • 提供多种目标的设备和用于产生X射线的多电子束
    • WO2013042810A1
    • 2013-03-28
    • PCT/KR2011/007003
    • 2011-09-22
    • 주식회사 엑스엘박래준강현충장창실
    • 박래준강현충장창실
    • H01J35/10H01J35/16
    • H01J35/10H01J35/06H01J35/305H01J2235/068H01J2235/081H01J2235/086
    • 본 발명은 두 가지 이상의 특성엑스선을 동시에 발생시키거나 특정한 특성엑스선을 선택적으로 또는 두 가지 이상의 특정한 특성엑스선을 각각 연속해서 발생시킴으로써 용도에 적합한 다양한 특성엑스선을 발생시킬 수 있고, 전자빔과 다중 타겟의 충돌에 의해 회전 양극에서 발생하는 열의 방열효율을 높여 고휘도의 특성엑스선을 장시간 발생시킬 수 있는 다중타겟 및 다중전자빔을 구비한 엑스선 발생장치를 제공함에 있다. 이를 구현하기 위한 본 발명은, 음극 필라멘트(230)로부터 방출된 전자빔이 양극의 다중 타겟(330)에 충돌 및 반사되어 엑스선을 방출하도록 내부에 진공실(120)을 구비하는 케이스(100); 상기 케이스(100)의 내부 일측에 구비되며, 인가되는 전압에 의해 가열되어 전자빔을 방출하는 복수의 필라멘트(230a,230b,230c)로 구성된 다중 음극 필라멘트(230)를 구비하는 음극부(200); 상기 복수의 필라멘트(230a,230b,230c)에 각각 대응하도록 회전 양극 원통부(310)의 외주면 둘레에 축방향으로 이격되어 복수로 구비되며, 서로 다른 원소로 이루어진 타겟(330a,330b,330c)으로 구성된 다중 타겟(330)을 구비하는 양극부(300); 및 상기 전자빔의 충돌 시 상기 양극부(300)에서 발생하는 열을 상기 케이스(100)의 외부로 방열하기 위한 냉각부(400);를 포함하여 구성된다.
    • 本发明提供了一种具有多个目标的设备和用于产生X射线的多电子束,其可以同时产生两个或更多个特征X射线,选择性地产生特定的特征x射线,或者产生两个或多个特定特征 x射线,从而产生适合于目的的各种特征x射线,并且可以通过增加产生的热量的散热效率而延长的时间段产生高亮度特征x射线 通过电子束和多个靶之间的碰撞在旋转阳极处。 为此,本发明包括:壳体(100),其中设置有真空室(120),使得从阴极灯丝(230)发射的电子束与多个目标物碰撞并反射离开 330)阳极; 阴极部分(200),设置在所述壳体(100)的内侧的一侧上并且设置有多丝阴极(230),所述阴极部分包括多个用于发射的细丝(230a,230b,230c) 电子束被施加的电压加热; 包括多个靶(330)的阳极部分(300),其包括包括不同元件并沿着轴向方向彼此分离的靶(330a,330b,330c),所述靶沿旋转阳极圆柱形部分的外周 310),以对应于所述多根细丝(230a,230b,230c)中的每一根; 以及用于在电子束碰撞时从阳极部分(300)产生的散热的冷却部分(400)到壳体(100)的外部。
    • 8. 发明申请
    • X線管球及びX線CT装置
    • X射线管和X射线CT装置
    • WO2013002124A1
    • 2013-01-03
    • PCT/JP2012/065913
    • 2012-06-21
    • 株式会社 東芝東芝メディカルシステムズ株式会社近藤 玄
    • 近藤 玄
    • H05G1/52A61B6/03
    • H01J35/30A61B6/032A61B6/4021A61B6/4078A61B6/482H01J35/08H01J35/14H01J35/24H01J2235/068H01J2235/086H05G1/52H05G1/58
    •  簡素な構成で異なる複数のX線を高速に切り替えながら照射可能なX線管球と、これを用いたX線CT装置を提供する。第1及び第2の電子発生部と、偏向手段と、ターゲットと、を備えたX線管球である。偏向手段は、第1及び第2の電子ビームが送出される方向を、第1及び第2の方向に切り替える。ターゲットは、第1、第2、第3、及び第4の面を備える。第1の面は、第1の方向に向けた第1の電子ビームを受けて、照射野に向けて第1のX線を照射する。第2の面は、第1の方向に向けた第2の電子ビームを受けて、照射野とは異なる方向に向けて第2のX線を照射する。第3の面は、第2の方向に向けた第1の電子ビームを受けて、所定の照射野とは異なる方向に向けて第1のX線を照射する。第4の面は、第2の方向に向けた第2の電子ビームを受けて、照射野に向けて第2のX線を照射する。
    • 本发明提供一种能够以简单的结构快速切换多个不同的X射线的X射线管和使用该X射线管的X射线CT装置。 X射线管包括第一和第二电子发射单元,偏转装置和靶。 偏转装置将第一和第二电子束的传播方向切换到第一和第二方向。 目标还包括第一,第二,第三和第四面。 第一面在第一方向上接收第一电子束并将第一x射线投射到照射场。 第二面在第一方向上接收第二电子束,并且在与照射场不同的方向上投射第二X射线。 第三面在第二方向上接收第一电子束,并且在与规定的照射场不同的方向上投影第一X射线。 第四面在第二方向上接收第二电子束,并将第二x射线投射到照射场。
    • 9. 发明申请
    • ANODE DISK ELEMENT COMPRISING A CONDUCTIVE COATING
    • 包含导电涂层的阳极盘元件
    • WO2011001325A1
    • 2011-01-06
    • PCT/IB2010/052808
    • 2010-06-22
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.KRAFT, KevinCARLSON, Gerald. J,XU, Paul
    • KRAFT, KevinCARLSON, Gerald. J,XU, Paul
    • H01J35/10
    • H01J35/108H01J35/105H01J2235/081H01J2235/086H01J2235/1229H01J2235/1245
    • The present invention relates to X-ray generating technology in general, in particular, it relates to an anode disk element (1) for an X-ray generating device (21). The generation of electromagnetic radiation may be considered to be quite inefficient, since a substantial part of energy applied to a focal track is converted to heat rather than X-radiation. Thus, a limiting factor in the operation of X-ray tubes is the cooling of the anode element and more specifically the focal track. In the present invention, an anode disk element is provided, with an improved dissipation of heat from the focal track. Thus, the anode disk element may sustain increased heat while maintaining structural integrity. The anode disk element (1) comprises at least a first surface (2) and a second surface (3), with the first surface (2) comprising a focal track (4) and the second surface (3) comprising a conductive coating (5). The anode disk element (1) is rotatable about a rotational axis (6) with the focal track (4) being rotationally symmetrical to the rotational axis (6). The first surface (2) comprising the focal track (4) and the second surface (3) comprising the conductive coating (5) are adjacently arranged.
    • 本发明一般涉及X射线产生技术,特别涉及一种用于X射线产生装置(21)的阳极盘元件(1)。 电磁辐射的产生可能被认为是非常低效的,因为施加到焦点轨道的大部分能量被转换成热而不是X射线。 因此,X射线管的操作的限制因素是阳极元件的冷却,更具体地说是焦点轨道。 在本发明中,提供了一种阳极盘元件,其具有来自焦点轨迹的热量的改善的散热。 因此,阳极盘元件可以维持增加的热量同时保持结构完整性。 阳极盘元件(1)至少包括第一表面(2)和第二表面(3),第一表面(2)包括焦点轨道(4),第二表面(3)包括导电涂层 5)。 阳极盘元件(1)可绕旋转轴线(6)旋转,其中焦点轨道(4)与旋转轴线(6)旋转对称。 包括焦点轨道(4)的第一表面(2)和包括导电涂层(5)的第二表面(3)相邻布置。