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1. 发明授权

US07342988B2 Neutron tubes 有权
公开(公告)号：US07342988B2
公开(公告)日：2008-03-11
申请号：US10360245
申请日：2003-02-06
申请人： Ka-Ngo Leung , Tak Pui Lou , Jani Reijonen
发明人： Ka-Ngo Leung , Tak Pui Lou , Jani Reijonen
IPC分类号： G21B1/00
CPC分类号： H05H3/06
摘要： A neutron tube or generator is based on a RF driven plasma ion source having a quartz or other chamber surrounded by an external RF antenna. A deuterium or mixed deuterium/tritium (or even just a tritium) plasma is generated in the chamber and D or D/T (or T) ions are extracted from the plasma. A neutron generating target is positioned so that the ion beam is incident thereon and loads the target. Incident ions cause D-D or D-T (or T-T) reactions which generate neutrons. Various embodiments differ primarily in size of the chamber and position and shape of the neutron generating target. Some neutron generators are small enough for implantation in the body. The target may be at the end of a catheter-like drift tube. The target may have a tapered or conical surface to increase target surface area.

2. 发明授权

US08279993B2 Gamma source for active interrogation 有权
标题翻译： Gamma来源用于主动询问
公开(公告)号：US08279993B2
公开(公告)日：2012-10-02
申请号：US12541423
申请日：2009-08-14
申请人： Ka-Ngo Leung , Tak Pui Lou , William A. Barletta
发明人： Ka-Ngo Leung , Tak Pui Lou , William A. Barletta
IPC分类号： G21G1/12
CPC分类号： H05G2/00 , G01V5/0091
摘要： A cylindrical gamma generator includes a coaxial RF-driven plasma ion source and target. A hydrogen plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical gamma generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which has many openings. The plasma generator emanates ions radially over 360° and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired.
摘要翻译：圆柱形γ发生器包括同轴RF驱动的等离子体离子源和靶。在使用RF天线的圆柱形等离子体离子发生器中通过RF激发产生氢等离子体。圆柱形伽马产生靶与离子发生器同轴，由具有许多开口的等离子体和引出电极分离。等离子体发生器径向离子发射离子360°，圆柱形靶因此在其整个圆周上被离子照射。等离子体发生器和靶可以是期望的长度。

3. 发明授权

US06870894B2 Compact neutron generator 失效
标题翻译：紧凑型中子发生器
公开(公告)号：US06870894B2
公开(公告)日：2005-03-22
申请号：US10410623
申请日：2003-04-08
申请人： Ka-Ngo Leung , Tak Pui Lou
发明人： Ka-Ngo Leung , Tak Pui Lou
IPC分类号： H05H3/06 , G21B1/00
CPC分类号： H05H3/06
摘要： A compact neutron generator has at its outer circumference a toroidal shaped plasma chamber in which a tritium (or other) plasma is generated. A RF antenna is wrapped around the plasma chamber. A plurality of tritium ion beamlets are extracted through spaced extraction apertures of a plasma electrode on the inner surface of the toroidal plasma chamber and directed inwardly toward the center of neutron generator. The beamlets pass through spaced acceleration and focusing electrodes to a neutron generating target at the center of neutron generator. The target is typically made of titanium tubing. Water is flowed through the tubing for cooling. The beam can be pulsed rapidly to achieve ultrashort neutron bursts. The target may be moved rapidly up and down so that the average power deposited on the surface of the target may be kept at a reasonable level. The neutron generator can produce fast neutrons from a T-T reaction which can be used for luggage and cargo interrogation applications. A luggage or cargo inspection system has a pulsed T-T neutron generator or source at the center, surrounded by associated gamma detectors and other components for identifying explosives or other contraband.
摘要翻译：紧凑的中子发生器在其外圆周处形成环形等离子体室，其中产生氚（或其它）等离子体。 RF天线缠绕在等离子体室周围。多个氚离子束通过环形等离子体室的内表面上的等离子体电极的间隔提取孔提取，并朝向中子发生器的中心。子束通过间隔的加速度和聚焦电极到达中子发生器中心的中子产生目标。目标通常由钛管制成。水流过管道进行冷却。光束可以快速脉冲以实现超短中子爆发。目标可以快速上下移动，使得沉积在目标表面上的平均功率可以保持在合理的水平。中子发生器可以从T-T反应产生快中子，可用于行李和货物询问应用。行李或货物检查系统在中心具有脉冲T-T中子发生器或源，由相关的伽马探测器和其他组件包围，用于识别爆炸物或其他违禁品。

4. 发明申请

US20090230314A1 GAMMA SOURCE FOR ACTIVE INTERROGATION 有权
标题翻译：有源互动的游戏源
公开(公告)号：US20090230314A1
公开(公告)日：2009-09-17
申请号：US11462999
申请日：2006-08-07
申请人： Ka-Ngo Leung , Tak Pui Lou , William A. Barletta
发明人： Ka-Ngo Leung , Tak Pui Lou , William A. Barletta
IPC分类号： G01T3/00 , H01J35/12 , H01J35/00
CPC分类号： H05G2/00 , G01V5/0091
摘要： A cylindrical gamma generator includes a coaxial RF-driven plasma ion source and target. A hydrogen plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical gamma generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which has many openings. The plasma generator emanates ions radially over 360° and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired.
摘要翻译：圆柱形γ发生器包括同轴RF驱动的等离子体离子源和靶。在使用RF天线的圆柱形等离子体离子发生器中通过RF激发产生氢等离子体。圆柱形伽马产生靶与离子发生器同轴，由具有许多开口的等离子体和引出电极分离。等离子体发生器径向离子发射离子360°，圆柱形靶因此在其整个圆周上被离子照射。等离子体发生器和靶可以是期望的长度。

5. 发明申请

US20100172458A1 GAMMA SOURCE FOR ACTIVE INTERROGATION 有权
标题翻译：有源互动的游戏源
公开(公告)号：US20100172458A1
公开(公告)日：2010-07-08
申请号：US12541423
申请日：2009-08-14
申请人： Ka-Ngo Leung , Tak-Pui Lou , William A. Barletta
发明人： Ka-Ngo Leung , Tak-Pui Lou , William A. Barletta
IPC分类号： G21B1/00 , G21C17/00
CPC分类号： H05G2/00 , G01V5/0091
摘要： A cylindrical gamma generator includes a coaxial RF-driven plasma ion source and target. A hydrogen plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical gamma generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which has many openings. The plasma generator emanates ions radially over 360° and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired.
摘要翻译：圆柱形γ发生器包括同轴RF驱动的等离子体离子源和靶。在使用RF天线的圆柱形等离子体离子发生器中通过RF激发产生氢等离子体。圆柱形伽马产生靶与离子发生器同轴，由具有许多开口的等离子体和引出电极分离。等离子体发生器径向离子发射离子360°，圆柱形靶因此在其整个圆周上被离子照射。等离子体发生器和靶可以是期望的长度。

6. 发明授权

US07596197B1 Gamma source for active interrogation 有权
标题翻译： Gamma来源用于主动询问
公开(公告)号：US07596197B1
公开(公告)日：2009-09-29
申请号：US11462999
申请日：2006-08-07
申请人： Ka-Ngo Leung , Tak Pui Lou , William A. Barletta
发明人： Ka-Ngo Leung , Tak Pui Lou , William A. Barletta
IPC分类号： G21B1/00
CPC分类号： H05G2/00 , G01V5/0091
摘要： A cylindrical gamma generator includes a coaxial RF-driven plasma ion source and target. A hydrogen plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical gamma generating target is coaxial with the ion generator, separated by plasma and extraction electrodes which has many openings. The plasma generator emanates ions radially over 360° and the cylindrical target is thus irradiated by ions over its entire circumference. The plasma generator and target may be as long as desired.
摘要翻译：圆柱形γ发生器包括同轴RF驱动的等离子体离子源和靶。在使用RF天线的圆柱形等离子体离子发生器中通过RF激发产生氢等离子体。圆柱形伽马产生靶与离子发生器同轴，由具有许多开口的等离子体和引出电极分离。等离子体发生器径向离子发射离子360°，圆柱形靶因此在其整个圆周上被离子照射。等离子体发生器和靶可以是期望的长度。

7. 发明授权

US06922019B2 Microwave ion source 失效
标题翻译：微波离子源
公开(公告)号：US06922019B2
公开(公告)日：2005-07-26
申请号：US10150534
申请日：2002-05-17
申请人： Ka-Ngo Leung , Jani Reijonen , Rainer W. Thomae
发明人： Ka-Ngo Leung , Jani Reijonen , Rainer W. Thomae
IPC分类号： H01J27/18 , H01J37/08 , H05G2/00 , H01J7/24 , G21G5/00 , G21G5/20
CPC分类号： H05G2/003 , H01J27/18 , H01J37/08
摘要： A compact microwave ion source has a permanent magnet dipole field, a microwave launcher, and an extractor parallel to the source axis. The dipole field is in the form of a ring. The microwaves are launched from the middle of the dipole ring using a coaxial waveguide. Electrons are heated using ECR in the magnetic field. The ions are extracted from the side of the source from the middle of the dipole perpendicular to the source axis. The plasma density can be increased by boosting the microwave ion source by the addition of an RF antenna. Higher charge states can be achieved by increasing the microwave frequency. A xenon source with a magnetic pinch can be used to produce intense EUV radiation.
摘要翻译：紧凑型微波离子源具有永磁偶极子场，微波发射器和平行于源轴的提取器。偶极场是环的形式。微波使用同轴波导从偶极环的中间发射。使用ECR在磁场中加热电子。从垂直于源轴的偶极子的中间离子源从源的一侧提取。通过添加RF天线来增加微波离子源可以提高等离子体密度。可以通过增加微波频率来实现更高的充电状态。具有磁性夹点的氙气源可用于产生强烈的EUV辐射。

8. 发明授权

US06974950B2 Positive and negative ion beam merging system for neutral beam production 失效
标题翻译：用于中性束生产的正负离子束合并系统
公开(公告)号：US06974950B2
公开(公告)日：2005-12-13
申请号：US10232503
申请日：2002-08-30
申请人： Ka-Ngo Leung , Jani Reijonen
发明人： Ka-Ngo Leung , Jani Reijonen
IPC分类号： G21K1/093 , H01J37/08 , H05H3/02
CPC分类号： H05H3/02 , G21K1/093 , H01J37/08 , H01J2237/31701
摘要： The positive and negative ion beam merging system extracts positive and negative ions of the same species and of the same energy from two separate ion sources. The positive and negative ions from both sources pass through a bending magnetic field region between the pole faces of an electromagnet. Since the positive and negative ions come from mirror image positions on opposite sides of a beam axis, and the positive and negative ions are identical, the trajectories will be symmetrical and the positive and negative ion beams will merge into a single neutral beam as they leave the pole face of the electromagnet. The ion sources are preferably multicusp plasma ion sources. The ion sources may include a multi-aperture extraction system for increasing ion current from the sources.
摘要翻译：正离子束和负离子束合并系统从两个单独的离子源中提取同一物种的正负离子和相同的能量。来自两个源的正离子和负离子通过电磁体的极面之间的弯曲磁场区域。由于正离子和负离子来自光束轴相对侧的镜像位置，正负离子相同，所以轨迹将是对称的，正离子和负离子束在离开时会合并成单个中性光束电磁铁的极面。离子源优选为多级等离子体离子源。离子源可以包括用于增加源的离子电流的多孔提取系统。

9. 发明申请

US20080080659A1 Neutron tubes 审中-公开
标题翻译：中子管
公开(公告)号：US20080080659A1
公开(公告)日：2008-04-03
申请号：US11987734
申请日：2007-12-04
申请人： Ka-Ngo Leung , Tak Lou , Jani Reijonen
发明人： Ka-Ngo Leung , Tak Lou , Jani Reijonen
IPC分类号： H01J27/02
CPC分类号： H05H3/06
摘要： A neutron tube or generator is based on a RF driven plasma ion source having a quartz or other chamber surrounded by an external RF antenna. A deuterium or mixed deuterium/tritium (or even just a tritium) plasma is generated in the chamber and D or D/T (or T) ions are extracted from the plasma. A neutron generating target is positioned so that the ion beam is incident thereon and loads the target. Incident ions cause D-D or D-T (or T-T) reactions which generate neutrons. Various embodiments differ primarily in size of the chamber and position and shape of the neutron generating target. Some neutron generators are small enough for implantation in the body. The target may be at the end of a catheter-like drift tube. The target may have a tapered or conical surface to increase target surface area.
摘要翻译：中子管或发生器基于具有由外部RF天线包围的石英或其它室的RF驱动等离子体离子源。在室中产生氘或混合的氘/氚（或甚至仅氚）等离子体，并从等离子体中提取D或D / T（或T）离子。中子产生靶被定位成使得离子束入射到其上并加载靶。事件离子会导致产生中子的D-D或D-T（或T-T）反应。各种实施例主要在室的尺寸和产生中子的靶的位置和形状上不同。一些中子发生器足够小以便植入体内。靶可以在导管状漂移管的末端。目标可以具有锥形或圆锥形表面以增加目标表面积。

10. 发明授权

US06768120B2 Focused electron and ion beam systems 失效
标题翻译：聚焦电子和离子束系统
公开(公告)号：US06768120B2
公开(公告)日：2004-07-27
申请号：US10232502
申请日：2002-08-30
申请人： Ka-Ngo Leung , Jani Reijonen , Arun Persaud , Qing Ji , Ximan Jiang
发明人： Ka-Ngo Leung , Jani Reijonen , Arun Persaud , Qing Ji , Ximan Jiang
IPC分类号： H01J2700
CPC分类号： H01J37/08 , H01J27/18 , H01J37/077
摘要： An electron beam system is based on a plasma generator in a plasma ion source with an accelerator column. The electrons are extracted from a plasma cathode in a plasma ion source, e.g. a multicusp plasma ion source. The beam can be scanned in both the x and y directions, and the system can be operated with multiple beamlets. A compact focused ion or electron beam system has a plasma ion source and an all-electrostatic beam acceleration and focusing column. The ion source is a small chamber with the plasma produced by radio-frequency (RF) induction discharge. The RF antenna is wound outside the chamber and connected to an RF supply. Ions or electrons can be extracted from the source. A multi-beam system has several sources of different species and an electron beam source.
摘要翻译：电子束系统基于具有加速器柱的等离子体离子源中的等离子体发生器。电子从等离子体离子源中的等离子体阴极中提取出来。多级等离子体离子源。可以在x和y方向上扫描光束，并且系统可以用多个子束进行操作。紧凑的聚焦离子或电子束系统具有等离子体离子源和全静电束加速度和聚焦柱。离子源是具有通过射频（RF）感应放电产生的等离子体的小室。 RF天线缠绕在室外，并连接到RF电源。可以从源中提取离子或电子。多光束系统具有不同物种的几种来源和电子束源。

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