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公开(公告)号：US08953747B2
公开(公告)日：2015-02-10
申请号：US13432948
申请日：2012-03-28
申请人： Marc-Andre de Looz , Jani Reijonen
发明人： Marc-Andre de Looz , Jani Reijonen
CPC分类号： H01J35/14 , H01J35/045 , H01J35/16 , H01J2235/168
摘要： An x-ray generator includes a voltage source and a voltage divider network coupled thereto, a housing, and an insulator carried within the housing. An emitter cathode is carried within the housing and emits electrons and undesirable conductive particles. In addition, there is a shielding electrode carried within the housing downstream of the emitter cathode and coupled to the voltage divider network. A target is carried within the housing downstream of the at least one shielding electrode. The voltage divider is configured so that the emitter cathode and the shielding electrode have a voltage difference therebetween such that an electric field generated in the housing accelerates electrons emitted by the emitter cathode to toward the target. The shielding electrode is shaped to capture the undesirable conductive particles emitted by the emitter cathode that would otherwise strike the insulator.
摘要翻译： x射线发生器包括电压源和耦合到其上的分压网络，壳体和承载在壳体内的绝缘体。 发射极阴极承载在壳体内并发射电子和不期望的导电颗粒。 另外，在发射极阴极下游的壳体内还有一个屏蔽电极并耦合到分压器网络。 靶材在至少一个屏蔽电极下游的壳体内承载。 分压器被配置为使得发射极阴极和屏蔽电极之间具有电压差，使得壳体中产生的电场加速由发射极阴极发射的电子朝向目标。 屏蔽电极被成形为捕获由发射极阴极发射的不期望的导电颗粒，否则这将导致绝缘体。
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公开(公告)号：US20100061500A1
公开(公告)日：2010-03-11
申请号：US12303851
申请日：2007-06-11
IPC分类号： G21B1/00
摘要： A novel method and compact neutron source for generating thermal neutrons is described that uses an ion source to emit ions toward a target where neutrons are generated. Surrounding the target is a secondary electron shield, and surrounding the target is a first stage moderator to reduce the energy of generated fast neutrons. Enclosing the first stage moderator is a second stage moderator with a thermal neutron port.
摘要翻译： 描述了用于产生热中子的新颖方法和紧凑的中子源，其使用离子源向产生中子的靶发射离子。 目标周围是二次电子屏蔽，周围的目标是第一级减速器，以减少产生的快中子的能量。 封闭第一阶段主持人是具有热中子端口的第二阶段主持人。
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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.
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公开(公告)号：US08686348B2
公开(公告)日：2014-04-01
申请号：US13366970
申请日：2012-02-06
申请人： Leo Chirovsky , Anthony Durkowski , Kevin Hiles , Jani Reijonen , Matthieu Simon , Peter Wraight
发明人： Leo Chirovsky , Anthony Durkowski , Kevin Hiles , Jani Reijonen , Matthieu Simon , Peter Wraight
IPC分类号： G01V5/00
CPC分类号： H01B19/04 , E21B47/01 , Y10T29/49227
摘要： A well logging instrument includes an instrument housing to traverse a wellbore penetrating subsurface formations. An electrically operated energy source that emits ionizing radiation is disposed inside the housing. An insulating sleeve is disposed between the energy source and an interior wall of the housing. The insulating sleeve comprises a thin dielectric film arranged in a plurality of tightly fitting layers of dielectric material disposed adjacent to each other and successively. A thickness of each layer and a number of layers is selected to provide a dielectric strength sufficient to electrically insulate the energy source from the housing and to provide a selected resistance to dielectric failure resulting from the ionizing radiation.
摘要翻译： 测井仪器包括用于穿过井眼穿透地下地层的仪器壳体。 发射电离辐射的电动能量源设置在壳体内。 绝缘套管设置在能量源和壳体的内壁之间。 绝缘套筒包括布置在彼此相邻并相继布置的多个紧密配合的介电材料层中的薄介电膜。 选择每个层的厚度和多个层以提供足以将能量源与壳体电绝缘的介电强度，并提供由电离辐射引起的介电故障的选定电阻。
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公开(公告)号：US20130259206A1
公开(公告)日：2013-10-03
申请号：US13432948
申请日：2012-03-28
申请人： Marc-Andre de Looz , Jani Reijonen
发明人： Marc-Andre de Looz , Jani Reijonen
CPC分类号： H01J35/14 , H01J35/045 , H01J35/16 , H01J2235/168
摘要： An x-ray generator includes a voltage source and a voltage divider network coupled thereto, a housing, and an insulator carried within the housing. An emitter cathode is carried within the housing and emits electrons and undesirable conductive particles. In addition, there is a shielding electrode carried within the housing downstream of the emitter cathode and coupled to the voltage divider network. A target is carried within the housing downstream of the at least one shielding electrode. The voltage divider is configured so that the emitter cathode and the shielding electrode have a voltage difference therebetween such that an electric field generated in the housing accelerates electrons emitted by the emitter cathode to toward the target. The shielding electrode is shaped to capture the undesirable conductive particles emitted by the emitter cathode that would otherwise strike the insulator.
摘要翻译： x射线发生器包括电压源和耦合到其上的分压网络，壳体和承载在壳体内的绝缘体。 发射极阴极承载在壳体内并发射电子和不期望的导电颗粒。 另外，在发射极阴极下游的壳体内还有一个屏蔽电极并耦合到分压器网络。 靶材在至少一个屏蔽电极下游的壳体内承载。 分压器被配置为使得发射极阴极和屏蔽电极之间具有电压差，使得壳体中产生的电场加速由发射极阴极发射的电子朝向目标。 屏蔽电极被成形为捕获由发射极阴极发射的不期望的导电颗粒，否则这将导致绝缘体。
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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
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。
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公开(公告)号：US09793084B2
公开(公告)日：2017-10-17
申请号：US13232166
申请日：2011-09-14
申请人： Jani Reijonen , Joel Lee Groves
发明人： Jani Reijonen , Joel Lee Groves
CPC分类号： H01J35/04 , H01J35/16 , H01J2235/02 , H01J2235/06 , H01J2235/086 , H01J2235/165 , H01J2235/20 , H05G1/06 , H05H3/06
摘要： Systems, methods, and devices with improved electrode configuration for downhole nuclear radiation generators are provided. For example, one embodiment of a nuclear radiation generator capable of downhole operation may include a charged particle source, a target material, and an acceleration column between the charged particle source and the target material. The acceleration column may include an intermediate electrode that remains floating at a variable potential, being electrically isolated from the rest of the acceleration column.
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公开(公告)号：US09155185B2
公开(公告)日：2015-10-06
申请号：US12618821
申请日：2009-11-16
CPC分类号： H05H3/06 , G01V5/10 , G21G1/10 , H01J35/04 , H01J35/16 , H01J2235/02 , H01J2235/06 , H01J2235/086 , H01J2235/165 , H01J2235/20
摘要： Systems, methods, and devices with improved electrode configuration for downhole nuclear radiation generators are provided. For example, one embodiment of a nuclear radiation generator capable of downhole operation may include a charged particle source, a target material, and an acceleration column between the charged particle source and the target material. The acceleration column may include several electrodes shaped such that substantially no electrode material from the electrodes is sputtered onto an insulator surface of the acceleration column during normal downhole operation.
摘要翻译： 提供了用于井下核辐射发生器的具有改进的电极配置的系统，方法和装置。 例如，能够进行井下操作的核辐射发生器的一个实施例可以包括带电粒子源，目标材料和带电粒子源与目标材料之间的加速柱。 加速柱可以包括几个电极，其形状使得在正常的井下操作期间基本上没有电极的电极材料溅射到加速柱的绝缘体表面上。
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公开(公告)号：US08737570B2
公开(公告)日：2014-05-27
申请号：US13123817
申请日：2009-10-07
IPC分类号： H05G2/00
摘要： An embodiment of a gamma ray generator includes a neutron generator and a moderator. The moderator is coupled to the neutron generator. The moderator includes a neutron capture material. In operation, the neutron generator produces neutrons and the neutron capture material captures at least some of the neutrons to produces gamma rays. An application of the gamma ray generator is as a source of gamma rays for calibration of gamma ray detectors.
摘要翻译： 伽马射线发生器的实施例包括中子发生器和调节器。 调节器耦合到中子发生器。 调节剂包括中子捕获材料。 在操作中，中子发生器产生中子，并且中子捕获材料捕获至少一些中子以产生γ射线。 伽马射线发生器的应用是用于伽马射线探测器校准的伽马射线源。
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公开(公告)号：US20110249801A1
公开(公告)日：2011-10-13
申请号：US13123817
申请日：2009-10-07
IPC分类号： H05G2/00
摘要： An embodiment of a gamma ray generator includes a neutron generator and a moderator. The moderator is coupled to the neutron generator. The moderator includes a neutron capture material. In operation, the neutron generator produces neutrons and the neutron capture material captures at least some of the neutrons to produces gamma rays. An application of the gamma ray generator is as a source of gamma rays for calibration of gamma ray detectors.
摘要翻译： 伽马射线发生器的实施例包括中子发生器和调节器。 调节器耦合到中子发生器。 调节剂包括中子捕获材料。 在操作中，中子发生器产生中子，并且中子捕获材料捕获至少一些中子以产生γ射线。 伽马射线发生器的应用是用于伽马射线探测器校准的伽马射线源。
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