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1.发明授权公开(公告)号：US07808182B2
公开(公告)日：2010-10-05
申请号：US11832193
申请日：2007-08-01
CPC分类号： H01J23/04 , H01J9/025 , H01J23/06 , H01J2201/304
摘要： The present invention provides an enhanced THz electromagnetic source structure achieving a very high aspect ratio of 500 to 1 of electron beam width to electron beam thickness of the electron beam moving in the direction across the grating structure while maintaining its cross-section. The structure comprises a magnetic circuit providing a unique low magnetic field slot placed in a steel core for the placement of an electron gun, thus allowing the electron beam to be focused without the interaction of a magnetic field while still supporting a high magnetic field in the grating region. Additionally, the structure comprises an electrostatic shield preventing potential difference between the anode voltage and the grounded steel core from affecting the focusing of the electron beam.
摘要翻译： 本发明提供了一种增强的THz电磁源结构，其实现电子束宽度与电子束的电子束厚度的500比1的非常高的纵横比，该电子束在横跨光栅结构的方向上移动，同时保持其横截面。 该结构包括磁路，其提供放置在钢芯中的独特的低磁场槽，用于放置电子枪，从而允许电子束在没有磁场的相互作用的同时聚焦，同时仍支持高磁场 光栅区域。 此外，该结构包括防止阳极电压和接地钢芯之间的电位差的静电屏蔽影响电子束的聚焦。
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公开(公告)号：US07416902B2
公开(公告)日：2008-08-26
申请号：US10945251
申请日：2004-09-20
IPC分类号： G01N1/00
CPC分类号： B03C3/36 , G01N15/1404 , G01N15/1459 , G01N2015/149 , Y10T436/117497 , Y10T436/25 , Y10T436/25375 , Y10T436/25875
摘要： An apparatus for airborne particle sorting is provided comprising a charging system adapted for applying an electrostatic charge to the particles, such that particles of at least a first group are deflected to a greater extent than particles of a second group are deflected. A focusing system is adapted for electrostatically focusing substantially at least the particles of the first group into a focused stream that is narrower than the input air stream. A deposition system is adapted for substantially depositing the particles of the first group from the focused stream upon a target surface, where the target surface may be transported to an analysis system capable of analyzing the particles deposited thereon.
摘要翻译： 提供了一种用于空中粒子分选的装置，其包括适于向颗粒施加静电荷的充电系统，使得至少第一组的颗粒比第二组的颗粒更大程度地偏转。 聚焦系统适于将基本上至少第一组的颗粒静电聚焦成比输入空气流更窄的聚焦流。 沉积系统适于将来自聚焦流的第一组的颗粒基本上沉积在目标表面上，其中目标表面可以被输送到能够分析沉积在其上的颗粒的分析系统。
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3.发明授权公开(公告)号：US07230244B2
公开(公告)日：2007-06-12
申请号：US10845820
申请日：2004-05-14
申请人： Seth Trotz , Peter James Coyle
发明人： Seth Trotz , Peter James Coyle
CPC分类号： G01N21/35 , G01N21/3504 , G01N21/3577 , G01N21/3581
摘要： The invention is a method and apparatus for the detection of terahertz radiation. In one embodiment, frequency modulated spectroscopy is performed on a swept source of coherent far infrared electromagnetic radiation that is focused on a target. A beam of radiation passes through a cell in which the target is housed, losing energy as certain frequencies are absorbed by contaminants in the target. A detector is positioned to determine how much energy is lost by the radiation (e.g., which frequencies fail to transmit through the cell), thereby indicating the presence of contaminants in the target.
摘要翻译： 本发明是用于检测太赫兹辐射的方法和装置。 在一个实施例中，对聚焦在目标上的相干远红外电磁辐射扫描源执行频率调制光谱。 辐射束通过其中容纳目标物的细胞，由于某些频率被靶中的污染物吸收而损失能量。 定位检测器以确定辐射损失了多少能量（例如，哪些频率不能通过电池传输），从而指示靶中存在污染物。
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