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公开(公告)号:US07450222B1
公开(公告)日:2008-11-11
申请号:US11772391
申请日:2007-07-02
申请人: Zhehui Wang , Shengnian Luo , Cris W. Barnes , Stephen F. Paul
发明人: Zhehui Wang , Shengnian Luo , Cris W. Barnes , Stephen F. Paul
IPC分类号: G01P3/36
CPC分类号: G01S17/50 , G01S7/4811 , G01S7/4818 , G01S7/491 , G01S7/4912
摘要: A velocimetry apparatus and method comprising splitting incoming reflected laser light and directing the laser light into first and second arms, filtering the laser light with passband filters in the first and second arms, one having a positive passband slope and the other having a negative passband slope, and detecting the filtered laser light via light intensity detectors following the passband filters in the first and second arms.
摘要翻译: 一种测速装置和方法,包括分离入射的反射激光并将激光引导到第一和第二臂中,在第一和第二臂中通过带通滤波器对激光进行滤波,一个具有正通带斜率,另一个具有负通带斜率 并且经由第一和第二臂中的通带滤波器之后的光强度检测器检测滤波后的激光。
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公开(公告)号:US06486593B1
公开(公告)日:2002-11-26
申请号:US09672045
申请日:2000-09-29
申请人: Zhehui Wang , Cris W. Barnes
发明人: Zhehui Wang , Cris W. Barnes
IPC分类号: H01J1726
CPC分类号: H01J37/32623 , F03H1/0056 , H01J37/32357 , H05H1/54
摘要: There has been invented an apparatus for acceleration of a plasma having coaxially positioned, constant diameter, cylindrical electrodes which are modified to converge (for a positive polarity inner electrode and a negatively charged outer electrode) at the plasma output end of the annulus between the electrodes to achieve improved particle flux per unit of power.
摘要翻译: 已经发明了一种用于加速等离子体的装置,其具有同轴位置恒定直径的圆柱形电极,其被修改为在电极之间的环形空间的等离子体输出端会聚(用于正极性内部电极和带负电荷的外部电极) 以实现每单位功率的改善的颗粒通量。
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公开(公告)号:US20130056442A1
公开(公告)日:2013-03-07
申请号:US13639823
申请日:2011-04-29
申请人: Bing Li , Xiaogang Li , Zhehui Wang
发明人: Bing Li , Xiaogang Li , Zhehui Wang
CPC分类号: G02B6/136 , G02B6/1228 , G02B2006/12097
摘要: The present invention relates to a method of manufacturing optical waveguide devices. The order of patterning/etch in the method is first a deeper etching then shallow etching. In some embodiments, the first etching forms a mesa and the second etching removes a portion of material that comprises the mesa. In addition, there can be a planarization step. The deeper trenches are desirably conducive to filling. The method may use a cross-lithography method to reduce alignment errors between multiple patterning/etching steps. The method may use an oxidation and stripping off process to smooth a surface of the waveguide and/or reduce an initial dimension of the waveguide.
摘要翻译: 本发明涉及一种制造光波导器件的方法。 在该方法中图案化/蚀刻的顺序首先是较深的蚀刻,然后进行浅蚀刻。 在一些实施例中,第一蚀刻形成台面并且第二蚀刻去除包括台面的材料的一部分。 另外,可以进行平面化步骤。 较深的沟槽理想地有利于填充。 该方法可以使用交叉光刻方法来减少多个图案化/蚀刻步骤之间的对准误差。 该方法可以使用氧化和剥离工艺来平滑波导的表面和/或减小波导的初始尺寸。
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公开(公告)号:US20140158896A1
公开(公告)日:2014-06-12
申请号:US13796597
申请日:2013-03-12
IPC分类号: G01T3/00
CPC分类号: G01T3/008
摘要: A double-helix Boron-10 powder detector having intrinsic thermal neutron detection efficiency comparable to 36″ long, 2-in diameter, 2-bar Helium-3 detectors, and which can be used to replace such detectors for use in portal monitoring, is described. An embodiment of the detector includes a metallic plate coated with Boron-10 powder for generating alpha and Lithium-7 particles responsive to neutrons impinging thereon supported by insulators affixed to at least two opposing edges; a grounded first wire wound in a helical manner around two opposing insulators; and a second wire having a smaller diameter than that of the first wire, wound in a helical manner around the same insulators and spaced apart from the first wire, the second wire being positively biased. A gas, disposed within a gas-tight container enclosing the plate, insulators and wires, and capable of stopping alpha and Lithium-7 particles and generating electrons produces a signal on the second wire which is detected and subsequently related to the number of neutrons impinging on the plate.
摘要翻译: 具有与36“长,2英寸直径,2bar氦-3检测器相当的本征热中子检测效率的双螺旋硼-10粉末检测器,可用于替代用于门监测的这种检测器是 描述。 检测器的一个实施例包括涂覆有硼-10粉末的金属板,用于产生α和锂-7颗粒,所述α和锂-7颗粒响应于撞击在其上的中子,固定在至少两个相对边缘上的绝缘体支撑; 围绕两个相对的绝缘体以螺旋方式缠绕的接地的第一线; 以及具有比所述第一线的直径小的第二线,以螺旋方式围绕相同的绝缘体卷绕并与所述第一线间隔开,所述第二线被正偏置。 设置在封闭板,绝缘体和电线的气密容器内并且能够阻止α和锂-7颗粒并产生电子的气体在检测到的第二导线上产生信号,并随后与撞击的中子数量有关 在盘子上
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公开(公告)号:US08445859B2
公开(公告)日:2013-05-21
申请号:US12797414
申请日:2010-06-09
申请人: Zhehui Wang , Christopher Morris , Jeffrey Darnell Bacon , Mark F. Makela , Randy Jay Spaulding
发明人: Zhehui Wang , Christopher Morris , Jeffrey Darnell Bacon , Mark F. Makela , Randy Jay Spaulding
IPC分类号: G01T3/00
CPC分类号: G01T3/008 , G01T3/00 , Y10T156/1089
摘要: High-efficiency neutron detector substrate assemblies comprising a first conductive substrate, wherein a first side of the substrate is in direct contact with a first layer of a powder material comprising 10boron, 10boron carbide or combinations thereof, and wherein a conductive material is in proximity to the first layer of powder material; and processes of making said neutron detector substrate assemblies.
摘要翻译: 包括第一导电基板的高效率中子探测器基板组件,其中基板的第一侧与包括10硼,10碳化硼或其组合的粉末材料的第一层直接接触,并且其中导电材料接近 第一层粉料; 以及制造所述中子检测器基板组件的工艺。
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公开(公告)号:US20120161023A1
公开(公告)日:2012-06-28
申请号:US12963492
申请日:2010-12-08
申请人: Zhehui Wang , Christopher Morris
发明人: Zhehui Wang , Christopher Morris
CPC分类号: G01T3/008 , Y10T156/10
摘要: High-efficiency neutron detector substrate assemblies comprising a first conductive substrate, wherein a first side of the substrate is in direct contact with a first layer of a powder material having a thickness of from about 50 nm to about 250 nm and comprising 10boron, 10boron carbide or combinations thereof, and wherein a conductive material is in proximity to the first layer of powder material; and processes of making said neutron detector substrate assemblies.
摘要翻译: 包括第一导电基板的高效中子探测器基板组件,其中基板的第一侧与厚度为约50nm至约250nm的第一层粉末材料直接接触,并且包括10硼,10碳化硼 或其组合,并且其中导电材料接近第一层粉末材料; 以及制造所述中子检测器基板组件的工艺。
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公开(公告)号:US20100314549A1
公开(公告)日:2010-12-16
申请号:US12797414
申请日:2010-06-09
申请人: Zhehui Wang , Christopher Morris , Jeffrey Darnell Bacon , Mark F. Makela , Randy Jay Spaulding
发明人: Zhehui Wang , Christopher Morris , Jeffrey Darnell Bacon , Mark F. Makela , Randy Jay Spaulding
CPC分类号: G01T3/008 , G01T3/00 , Y10T156/1089
摘要: High-efficiency neutron detector substrate assemblies comprising a first conductive substrate, wherein a first side of the substrate is in direct contact with a first layer of a powder material comprising 10boron, 10boron carbide or combinations thereof, and wherein a conductive material is in proximity to the first layer of powder material; and processes of making said neutron detector substrate assemblies.
摘要翻译: 包括第一导电基板的高效率中子探测器基板组件,其中基板的第一侧与包括10硼,10碳化硼或其组合的粉末材料的第一层直接接触,并且其中导电材料接近 第一层粉料; 以及制造所述中子检测器基板组件的工艺。
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