公开(公告)号：US5419877A

公开(公告)日：1995-05-30

申请号：US123635

申请日：1993-09-17

申请人： Robert R. Goforth ,  Tihiro Ohkawa

发明人： Robert R. Goforth ,  Tihiro Ohkawa

IPC分类号： B01D53/34 ,  B01D49/00 ,  B01D51/08 ,  B01D53/50 ,  B01D53/81 ,  B01D53/86 ,  B01D53/10 ,  B06B1/00

CPC分类号： B01D51/08 ,  B01D49/006 ,  B01D53/508 ,  B01D53/8631 ,  B01D2259/816 ,  Y10S55/25

摘要： High temperature gas emissions from industrial power plant or environmental clean-up processes are subjected to an acoustic waveform having second harmonic content and appropriate second harmonic phase shift to impart a net acoustic Oseen force on particulate matter contained in the gas for removal of said matter. Particulate matter of 1 micron radius is positively excluded, while smaller particles are agglomerated by the sound wave. The acoustic waveform further enhances both sorption of injected sorbent particles for removal of sulfur oxides, and the efficiency of an in-line catalytic converter for removal of nitrogen oxides. The invention improves overall removal efficiency, can operate at very high temperatures, and does not produce any secondary waste, such as filters.

摘要翻译： 来自工业发电厂或环境清理过程的高温气体排放物经受具有二次谐波含量和适当的二次谐波相移的声波形，以将包含在气体中的颗粒物质的净声学Oseen力提供给所述物质。 1微米半径的颗粒物被积极地排除，而较小的颗粒被声波聚集。 声波形进一步增强了注入的吸附剂颗粒的吸附以去除硫氧化物，以及用于除去氮氧化物的在线催化转化器的效率。 本发明提高了总体去除效率，可以在非常高的温度下操作，并且不产生任何二次废物，例如过滤器。

公开(公告)号：US5023109A

公开(公告)日：1991-06-11

申请号：US403284

申请日：1989-09-06

申请人： Jack Chin ,  Robert R. Goforth ,  Tihiro Ohkawa

发明人： Jack Chin ,  Robert R. Goforth ,  Tihiro Ohkawa

IPC分类号： C30B25/02 ,  C23C16/27 ,  C23C16/511 ,  C30B25/10 ,  C30B25/12 ,  C30B29/04 ,  H01J37/32

CPC分类号： C23C16/274 ,  C23C16/277 ,  C23C16/511 ,  C30B25/105 ,  H01J37/32522 ,  H01J37/3255 ,  H01J37/32724

摘要： Synthetic diamond crystals and films are deposited on a pair of uniformly spaced apart facing plates made of silicon, molybdenum or boron in elemental, nitride or carbide form. The plates are suitably supported within a totally thermally insulated chamber where a pressure of about 10 torr or less is maintained in the form of an atmosphere which includes a carbon source and a major portion of hydrogen, and preferably includes oxygen in equal amount to the carbon. By supplying sufficient microwave power to create a plasma and a uniform temperature of about 950.degree. C. at the plate surfaces, diamond crystals economically grow on the surfaces of the facing plates. Preferably, either the plates or the backing sections thereof have a relatively high thermal conductivity so as to maintain a uniform temperature across the entire plate surface areas.

摘要翻译： 将合成金刚石晶体和薄膜沉积在由硅，钼或硼以元素，氮化物或碳化物形式制成的一对均匀间隔开的面对板上。 板被适当地支撑在完全绝热的室中，其中约10托或更低的压力保持为包括碳源和大部分氢气的气氛的形式，并且优选地包括等于碳的氧 。 通过提供足够的微波功率以在板表面产生等离子体和约950℃的均匀温度，金刚石晶体在面板的表面上经济地生长。 优选地，板或其背衬部分具有相对高的导热性，以便在整个板表面区域上保持均匀的温度。

公开(公告)号：US4958590A

公开(公告)日：1990-09-25

申请号：US403335

申请日：1989-09-06

申请人： Robert R. Goforth

发明人： Robert R. Goforth

IPC分类号： C30B29/04 ,  C23C16/27 ,  C23C16/511 ,  H01J37/32

CPC分类号： C23C16/274 ,  C23C16/27 ,  C23C16/277 ,  C23C16/511 ,  H01J37/32192 ,  H01J37/32229 ,  H01J37/32284

摘要： A microwave traveling-wave production element produces diamond using a chemical vapor deposition (CVD) process. The production element includes a waveguide of a specified length and cross section designed to operate in a specified microwave transmission mode. A microwave oscillator mounted at one end of the waveguide provides microwave energy to the waveguide at a specified frequency for operating in the desired transmission mode. A matched termination load mounted at the other end of the waveguide absorbs the microwave energy that travels through the waveguide and prevents standing waves from being developed within the waveguide. One or more substrate plates are positioned within the waveguide so as to follow a contour of approximately constant tranverse electric field strength. A gaseous mixture, having a composition that promotes the deposition of diamond on the substrate plates, is maintained proximate the substrate plates at a specified pressure. The energy of the microwaves traveling through the waveguide creates plasma having a uniform temperature near the region of the substrate plates and further heats the gaseous mixture and substrate plates sufficiently to promote the CVD deposition of diamond on the surface of the substrate plates. Several production elements may be combined in a production system to significantly increase the number of substrate plates used, and hence the yield of the diamond.

摘要翻译： 微波行波生产元件使用化学气相沉积（CVD）工艺生产金刚石。 生产元件包括设计成以指定的微波传输模式操作的具有指定长度和横截面的波导。 安装在波导一端的微波振荡器以特定频率向波导提供微波能量，以在期望的传输模式下操作。 安装在波导另一端的匹配端接负载吸收穿过波导的微波能量，并防止在波导内形成驻波。 一个或多个基板被定位在波导内，以便遵循近似恒定的横向电场强度的轮廓。 具有促进金刚石沉积在基板上的组成的气体混合物在特定压力下保持在基板附近。 通过波导传播的微波的能量产生在衬底板的区域附近具有均匀温度的等离子体，并进一步加热气态混合物和衬底板以促进金刚石在衬底板表面上的沉积。 几个生产元件可以在生产系统中组合以显着增加所使用的基板的数量，并因此显着增加金刚石的产量。

公开(公告)号：US4939740A

公开(公告)日：1990-07-03

申请号：US203487

申请日：1988-06-07

申请人： Robert R. Goforth

发明人： Robert R. Goforth

IPC分类号： H01S1/00

CPC分类号： H01S1/005

摘要： A cyclotron autoresonance maser includes an evacuated drift tube with a first end, a second end and an axis. An electron gun introduces a beam of relativistic electrons to the drift tube first end and, for example, a wiggler magnet causes the electrons to gyrate with the gyrations having relatively small radii. A magnetic field generator is provided which forces the beam of relativistic, gyrating electrons to spiral about the axis of the drift tube. The radii of the spirals is large relative to the radii of the gyrations so that the effective interaction length of the electron beam and a maser beam, having an axis substantially coincidental with the axis of the electron beam, is substantially greater than that of a relativistic electron beam and a maser beam which simply cross. A method of generating coherent radiation is also disclosed.

摘要翻译： 回旋加速器自谐振激光器包括具有第一端，第二端和轴的抽真空漂移管。 电子枪将相对论电子束引入漂移管第一端，并且例如摆动磁体使得电子在具有相对小的半径的回转中旋转。 提供了一种磁场发生器，其强制相对论旋转电子束围绕漂移管的轴线旋转。 螺旋的半径相对于回转的半径是大的，使得电子束和具有与电子束的轴基本一致的轴的激光束的有效相互作用长度显着大于相对论的 电子束和简单交叉的激光束。 还公开了一种产生相干辐射的方法。