公开(公告)号：US09179535B2

公开(公告)日：2015-11-03

申请号：US12025096

申请日：2008-02-04

申请人： Luke T. Perkins

发明人： Luke T. Perkins

IPC分类号： H05H3/06 ,  G01V5/10 ,  G21B1/11

CPC分类号： H05H3/06 ,  G01V5/10 ,  G21B1/11

摘要： A neutron generator includes a sealed envelope providing a low pressure environment for a gas of hydrogen isotope(s). One end of the envelope defines an ion source chamber. A target electrode is disposed at the other end of the envelope. An extraction electrode is spaced apart from the target electrode by an accelerating gap. The extraction electrode bounds the ion source chamber. An RF antenna is disposed external to the sealed envelope in the vicinity of the ion source chamber. The RF antenna is used to transmit time-varying electromagnetic fields within the ion source chamber for producing plasma therein. The extraction electrode operates at a positive high voltage potential and the target electrode operates at or near ground potential in order to provide an electric field gradient that accelerates ions of the plasma towards the target electrode to induce collisions of ions with target material, thereby causing fusion reactions that generate and emit neutrons from the target material. High voltage insulation is disposed between the RF antenna and both the ion source chamber and the extraction electrode for electrically insulating the RF antenna operating at or near ground potential from the high voltages of the ion source chamber and the extraction electrode.

摘要翻译： 中子发生器包括为氢同位素气体提供低压环境的密封外壳。 信封的一端限定离子源室。 目标电极设置在信封的另一端。 引出电极通过加速间隙与目标电极间隔开。 提取电极限定离子源室。 RF天线设置在离子源室附近的密封外壳的外部。 RF天线用于传输离子源室内的时变电磁场，用于在其中产生等离子体。 提取电极工作在正高电压电位，目标电极工作在或接近地电位，以提供电场梯度，加速等离子体的离子朝向目标电极，以引起离子与目标材料的碰撞，从而引起融合 从目标材料产生和发射中子的反应。 在RF天线与离子源室和提取电极之间设置有高压绝缘，用于将在距离地电位或接近地电位的RF天线与离子源室和提取电极的高电压电绝缘。

公开(公告)号：US08921769B2

公开(公告)日：2014-12-30

申请号：US13585542

申请日：2012-08-14

申请人： Steven M. Bliven

发明人： Steven M. Bliven

IPC分类号： G01V5/10 ,  H05H3/06

CPC分类号： G01V5/101 ,  H05H3/06

摘要： Method and apparatus for evaluating an earth formation using at least one detector with a pulsed neutron source that includes a beam of deuterium ions that can be directed to a selected position on a target including tritium that extends axially along a sealed tube. This makes it possible to generate pulsed neutrons from a plurality of positions.

摘要翻译： 用于使用至少一个具有脉冲中子源的检测器来评估地层的方法和装置，其包括可以被引导到包括沿密封管轴向延伸的氚的目标上的选定位置的氘离子束。 这使得可以从多个位置产生脉冲中子。

公开(公告)号：US20130294557A1

公开(公告)日：2013-11-07

申请号：US13884889

申请日：2011-11-09

申请人： Luke Perkins

发明人： Luke Perkins

IPC分类号： H05H3/06

CPC分类号： H05H3/06 ,  G21G4/02 ,  H05H7/02 ,  H05H2007/022 ,  H05H2007/025

摘要： A pulsed neutron generator includes neutron tube and a high voltage power supply. High voltage power supply includes a bulkhead and plurality of electronic components electrically connected between the bulkhead and the target of the neutron tube. A heat pipe is provided in thermal contact with the target and has a housing portion with an exterior surface supporting the plurality of electronic components of the high voltage power supply. Heat pipe includes wick and heat transfer fluid disposed within the housing portion. The wick for recirculates the heat transfer fluid within the housing portion in order to transfer heat away from the target preferably to the bulkhead for dissipation the system housing. Both the wick and heat transfer fluid are preferably realized from materials that have low electrical conductivity. The heat pipe can also be part of other-type particle accelerators, such as x-ray sources and gamma-ray sources.

摘要翻译： 脉冲中子发生器包括中子管和高压电源。 高压电源包括隔板和电连接在隔板与中子管的靶之间的多个电子部件。 一个热管设置成与目标物体热接触，并具有壳体部分，外壳表面支撑高压电源的多个电子部件。 热管包括设置在壳体部分内的油芯和传热流体。 用于使传热流体在壳体部分内再循环，以便将热量从目标传送到隔板，以便散热系统壳体。 芯和传热流体优选由具有低导电性的材料实现。 热管也可以是其它型粒子加速器的一部分，例如x射线源和γ射线源。

公开(公告)号：US20110188622A1

公开(公告)日：2011-08-04

申请号：US13055997

申请日：2009-06-22

申请人： Oded Shrier

发明人： Oded Shrier

IPC分类号： H05H3/06

CPC分类号： H05H3/02 ,  G21B1/19 ,  H05H3/06 ,  Y02E30/16

摘要： A neutral particle generator is disclosed that includes a container which holds a material in at least a partial plasma state, for example a Deuterium plasma. In one form, a first cathode is positioned within the container and produces a first beam of neutral particles directed away from the first cathode. Optionally, a second cathode is also positioned within the container and produces a second beam of neutral particles directed away from the second cathode, and/or a target is also positioned within the container. In one form, the first cathode and the second cathode are linearly opposed so that the first beam interacts/collides with the second beam resulting in fusion reactions of at least some of the neutral particles, which thereby results in generation of emitted neutrons.

摘要翻译： 公开了一种中性粒子发生器，其包括容纳至少部分等离子体状态的材料的容器，例如氘等离子体。 在一种形式中，第一阴极被定位在容器内并且产生远离第一阴极的第一束中性粒子。 可选地，第二阴极还定位在容器内并产生远离第二阴极的中性粒子的第二束，和/或靶也位于容器内。 在一种形式中，第一阴极和第二阴极线性相对，使得第一光束与第二光束相互作用/碰撞，导致至少一些中性粒子的聚变反应，从而导致产生发射的中子。

公开(公告)号：US06922455B2

公开(公告)日：2005-07-26

申请号：US10058561

申请日：2002-01-28

申请人： Brian E. Jurczyk ,  John M. DeMora, Jr. ,  Robert A. Stubbers

发明人： Brian E. Jurczyk ,  John M. DeMora, Jr. ,  Robert A. Stubbers

IPC分类号： G21K5/04 ,  H05H3/06 ,  G21B1/00

CPC分类号： G21B1/19 ,  G21K5/04 ,  H05H3/06 ,  Y02E30/16

摘要： Described herein are integrated systems for generating neutrons to perform a variety of tasks including: on-line analysis of bulk material and industrial process control (as shown in FIG. 1), security interrogation (as shown in FIG. 2), soil and environmental analysis, and medical diagnostic treatment. These systems are based on novel gas-target neutron generation which embodies the beneficial characteristics of replenishable fusible gas targets for very long lifetime, stability and continuous operation, combined with the advantageous features common to conventional accelerator neutron tubes including: on/off operation, hermetically sealed operation, and safe storage and transport. Innovative electron management techniques provide gas-target neutron production efficiencies that are comparable or surpass existing sources. The high-pressure high-resistance gaseous discharge is presented as a favorable gas-target neutron generator embodiment, combining ion source regions, accelerator regions, gas-target regions and electron management components within a single simple cost-effective device that is adaptable to various geometric configurations that provide specific neutron emission profiles for greater analysis capacity.

摘要翻译： 本文描述了用于产生中子以执行各种任务的集成系统，包括：散装材料和工业过程控制的在线分析（如图1所示），安全询问（如图2所示），土壤和环境 分析和医疗诊断治疗。 这些系统基于新的气体靶中子生成，其体现了可持久的可持续的易燃气体目标的有益特征，其寿命长，稳定性和连续运行，以及常规加速器中子管共同的有利特征，包括：开/关操作，气密 密封操作，安全储存和运输。 创新的电子管理技术提供了可比或超过现有来源的气靶中子生产效率。 高压高电阻气体放电作为有利的气体靶中子发生器实施例，在单个简单的成本有效的装置内组合离子源区域，加速器区域，气体目标区域和电子管理部件，适用于各种 几何配置，提供特定的中子发射轮廓，以获得更大的分析能力。

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。

公开(公告)号：US06141395A

公开(公告)日：2000-10-31

申请号：US260058

申请日：1999-03-02

申请人： Kazuya Nishimura ,  Michio Kato ,  Yuko Rintsu ,  Masaaki Nagakura ,  Yoshinobu Miyake

发明人： Kazuya Nishimura ,  Michio Kato ,  Yuko Rintsu ,  Masaaki Nagakura ,  Yoshinobu Miyake

IPC分类号： G01V5/04 ,  G21G4/02 ,  H05H3/06 ,  H05H6/00 ,  G21B1/00 ,  G01T1/167

CPC分类号： H05H3/06

摘要： A sealed neutron tube is provided, in which an insulating structure is designed to be solid to enhance the shock-proof performance thereof, an ion beam drawn out from an ion source is pulsated more rapidly, and the lifetime of a target is increased without substantially increasing the filling amount of the Tritium. The sealed neutron tube (1) includes a metal housing (20), an ion source (5) disposed and sealed within the metal housing for ionizing a Deuterium gas, an accelerating electrode (4) charged with a high voltage, disposed and sealed within the metal housing and facing the ion source, and a target (3) disposed within the accelerating electrode and absorbing Tritium and the like therein. An outer wall (20) is constructed by a metal housing, and a ceramic insulating member (11) is disposed within the metal housing. Since the accelerating electrode is held by this insulating member, the outer wall of the sealed neutron tube has enhanced shock-proof performance. Further, a permanent magnet (10) is disposed within the accelerating electrode, so as to form a magnetic potential (a lateral magnetic potential) between the target and the inlet of the accelerating electrode. Consequently, the track of secondary electrons emitted from the target is bent, and therefore the secondary electrons are prevented from leaking outside of the accelerating electrode.

摘要翻译： 提供了一种密封的中子管，其中绝缘结构设计为坚固的以增强其防震性能，从离子源引出的离子束更快地脉动，并且目标的寿命增加而基本上不增加 增加氚的填充量。 密封中子管（1）包括金属壳体（20），设置并密封在金属壳体内用于离子化氘气的离子源（5），装有高电压的加速电极（4），被设置和密封在 金属壳体并且面向离子源，以及设置在加速电极内并在其中吸收氚等的靶（3）。 外壁（20）由金属外壳构成，陶瓷绝缘件（11）设置在金属外壳内。 由于加速电极由该绝缘构件保持，密封的中子管的外壁具有增强的防震性能。 此外，永磁体（10）设置在加速电极内，以在加速电极的靶和入口之间形成磁电位（横向磁电位）。 因此，从目标发射的二次电子的轨迹被弯曲，因此防止二次电子泄漏到加速电极外部。

公开(公告)号：US5784424A

公开(公告)日：1998-07-21

申请号：US674970

申请日：1996-07-03

申请人： David P. Fries ,  James F. Browning

发明人： David P. Fries ,  James F. Browning

IPC分类号： G01N23/00 ,  G21G1/08 ,  H01J49/40 ,  H05H3/06 ,  B01D59/44

CPC分类号： H05H3/06 ,  G01N23/005 ,  G21G1/08 ,  H01J49/40

摘要： A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis. The heavy ion generator comprises a fissionable material having a high n,f reaction cross section. The heavy ion generator also comprises a pulsed neutron generator that is used to bombard the fissionable material with pulses of neutrons, thereby causing heavy ions to be emitted from the fissionable material. These heavy ions impinge on a material, thereby causing ions to desorb off that material. The ions desorbed off the material pass through a time-of-flight mass analyzer, wherein ions can be measured with masses greater than 25,000 amu.

摘要翻译： 重离子发生器与等离子体解吸质谱仪一起使用，以在可裂变材料的方向上提供适当的中子通量，以从材料中解吸和离子化大分子进行质量分析。 重离子发生器包括具有高n，f反应截面的可裂变材料。 重离子发生器还包括脉冲中子发生器，其用于用中子脉冲轰击可裂变材料，从而导致从可裂变材料发射重离子。 这些重离子撞击材料，从而使离子解吸掉该材料。 脱离材料的离子通过飞行时间质量分析仪，其中可以以大于25,000amu的质量来测量离子。

公开(公告)号：US5276717A

公开(公告)日：1994-01-04

申请号：US675248

申请日：1991-03-26

申请人： Joseph Weber

发明人： Joseph Weber

IPC分类号： H04B13/00 ,  H05H3/06 ,  H04B14/00

CPC分类号： H05H3/06 ,  H04B13/00 ,  Y10S376/913

摘要： Neutrinos and antineutrinos are generated by electromagnetic excitation of elementary subatomic particle magnetic moments in a DC magnetic field and causing the orientation energy of magnetic moments resulting from such excitation to be converted into the neutrinos and/or antineutrinos. A beam of neutrinos and antineutrinos is derived by enclosing a neutrino antineutrino source with neutrino scattering crystals having an aperture therein. Neutrinos and/or antineutrinos are amplitude modulated by varying the amplitude of electromagnetic excitation of the elementary particle magnetic moments, or the DC field or momentum mechanically imparted to a stiff crystal including the subatomic particles.

摘要翻译： 中微子和反中性线是通过在直流磁场中的基本亚原子粒子磁矩的电磁激发产生的，并且使得由这种激发产生的磁矩的取向能转化为中微子和/或抗中性。 中微子和反中子束是通过在其中具有孔径的中微子散射晶体包围中微子抗中和源得到的。 通过改变基本粒子磁矩的电磁激发的振幅或机械赋予包括亚原子粒子的硬晶体的直流场或动量来调节中子和/或抗中性线。

公开(公告)号：US4935194A

公开(公告)日：1990-06-19

申请号：US339549

申请日：1989-04-17

申请人： Gerard Verschoore

发明人： Gerard Verschoore

IPC分类号： G21K5/02 ,  G21K5/08 ,  H05H3/06 ,  H05H6/00

CPC分类号： H05H6/00 ,  H05H3/06

摘要： A neutron generator comprising a target (16) which is struck by a hydrogen isotope ion beam and which is formed by a structure comprising a thin absorbing active layer (19) deposited on a carrier layer (18). In accordance with the invention, on the two above layers there is deposited a stack of active layers (21, 23, 25, 27) which are identical to the layer (19) and which are separated from one another by diffusion barriers (20, 22, 24, 26, respectively). The thickness of each of said active layers is in the order of the penetration depth of the deuterium ions striking the target.

摘要翻译： 一种中子发生器，包括被氢同位素离子束撞击并由沉积在载体层（18）上的薄吸收有源层（19）的结构形成的靶（16）。 根据本发明，在上述两层上淀积一层与层（19）相同的有源层（21,23,25,27），它们通过扩散阻挡层（20， 22,24,26）。 每个所述有源层的厚度是氘离子撞击靶的穿透深度的顺序。