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公开(公告)号：US09116249B1
公开(公告)日：2015-08-25
申请号：US14192688
申请日：2014-02-27
申请人： Sandia Corporation
发明人： Liam D. Claus , Mark S. Derzon , Randolph R. Kay , Todd Bauer , Douglas Chandler Trotter , Michael David Henry
摘要： An apparatus for detecting radiation is provided. In embodiments, at least one sensor medium is provided, of a kind that interacts with radiation to generate photons and/or charge carriers. The apparatus also includes at least one electrode arrangement configured to collect radiation-generated charge from a sensor medium that has been provided. The apparatus also includes at least one photodetector configured to produce an electrical output in response to photons generated by radiation in such a sensor medium, and an electronic circuit configured to produce an output that is jointly responsive to the collected charge and to the photodetector output. At least one such electrode arrangement, at least one such photodetector, and at least one such sensor medium are combined to form an integral unit.
摘要翻译： 提供了一种用于检测辐射的装置。 在实施例中，提供至少一种与辐射相互作用以产生光子和/或电荷载体的传感器介质。 该装置还包括配置成从已经提供的传感器介质收集辐射产生的电荷的至少一个电极装置。 该装置还包括至少一个光电检测器，其被配置为响应于在这种传感器介质中由辐射产生的光子而产生电输出;以及电子电路，被配置为产生联合响应所收集的电荷和光电检测器输出的输出。 至少一个这样的电极布置，至少一个这样的光电检测器和至少一个这样的传感器介质被组合以形成整体单元。
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公开(公告)号：US09170340B1
公开(公告)日：2015-10-27
申请号：US14539972
申请日：2014-11-12
申请人： Sandia Corporation
摘要： A directional neutron detector has an ion chamber formed in a dielectric material; a signal electrode and a ground electrode formed in the ion chamber; a neutron absorbing material filling the ion chamber; readout circuitry which is electrically coupled to the signal and ground electrodes; and a signal processor electrically coupled to the readout circuitry. The ion chamber has a pair of substantially planar electrode surfaces. The chamber pressure of the neutron absorbing material is selected such that the reaction particle ion trail length for neutrons absorbed by the neutron absorbing material is equal to or less than the distance between the electrode surfaces. The signal processor is adapted to determine a path angle for each absorbed neutron based on the rise time of the corresponding pulse in a time-varying detector signal.
摘要翻译： 方向中子检测器具有形成在电介质材料中的离子室; 形成在离子室中的信号电极和接地电极; 填充离子室的中子吸收材料; 电耦合到信号和接地电极的读出电路; 以及电耦合到读出电路的信号处理器。 离子室具有一对基本上平面的电极表面。 选择中子吸收材料的腔室压力使得由中子吸收材料吸收的中子的反应粒子离子轨迹长度等于或小于电极表面之间的距离。 信号处理器适于基于时变检测器信号中的对应脉冲的上升时间来确定每个吸收的中子的路径角度。
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公开(公告)号：US08530854B1
公开(公告)日：2013-09-10
申请号：US13647970
申请日：2012-10-09
申请人： Sandia Corporation
发明人： Mark S. Derzon , Paul C. Galambos
摘要： Various technologies described herein pertain to a micro gas-puff based source of neutrons, x-rays, and/or energetic particles. The micro gas-puff based source can generate plasma, which can emit neutrons, x-rays, and the like. The micro gas-puff based source includes a diode, which further includes an anode and a cathode. Further, a chamber is between the anode and the cathode. Moreover, a MEMS gas supply can inject a puff of gas between the anode and the cathode within the chamber, where the MEMS gas supply shapes the puff of gas to form a quasispherical density profile of gas created in various of geometries. Further, a pulsed power supply applies a voltage across the anode and the cathode to cause compression of the puff of gas to form the plasma.
摘要翻译： 本文描述的各种技术涉及基于微气泡的中子，x射线和/或能量粒子源。 基于微气泡基的源可以产生可以发射中子，x射线等的等离子体。 基于微气泡基的源包括二极管，其还包括阳极和阴极。 此外，室在阳极和阴极之间。 此外，MEMS气体供应可以在室内的阳极和阴极之间注入气泡，其中MEMS气体供应器形成气泡，以形成以各种几何形状产生的气体的准球形密度分布。 此外，脉冲电源施加跨越阳极和阴极的电压以引起气泡的压缩以形成等离子体。
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公开(公告)号：US09681846B1
公开(公告)日：2017-06-20
申请号：US14102422
申请日：2013-12-10
申请人： Sandia Corporation
发明人： Mark S. Derzon , Alex Robinson , Paul C. Galambos
CPC分类号： A61B6/4057 , A61N5/1001 , A61N2005/1022 , H01J35/02 , H05G2/003 , H05G2/006
摘要： A radiation generator useful for medical applications, among others, is provided. The radiation generator includes a catheter; a plasma discharge chamber situated within a terminal portion of the catheter, a cathode and an anode positioned within the plasma discharge chamber and separated by a gap, and a high-voltage transmission line extensive through the interior of the catheter and terminating on the cathode and anode so as to deliver, in operation, one or more voltage pulses across the gap.
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公开(公告)号：US09595628B1
公开(公告)日：2017-03-14
申请号：US14456934
申请日：2014-08-11
申请人： Sandia Corporation
发明人： Murat Okandan , Mark S. Derzon , Bruce L. Draper
IPC分类号： H01L31/115 , H01L31/028
CPC分类号： H01L31/115 , H01L31/0284 , H01L31/035281
摘要： A radiation detector comprises a silicon body in which are defined vertical pores filled with a converter material and situated within silicon depletion regions. One or more charge-collection electrodes are arranged to collect current generated when secondary particles enter the silicon body through walls of the pores. The pores are disposed in low-density clusters, have a majority pore thickness of 5 μm or less, and have a majority aspect ratio, defined as the ratio of pore depth to pore thickness, of at least 10.
摘要翻译： 辐射检测器包括硅体，其中定义的垂直孔填充有转换器材料并位于硅耗尽区内。 一个或多个电荷收集电极被布置成收集当二次粒子通过孔的壁进入硅体时产生的电流。 孔被设置在低密度簇中，具有5μm以下的大部分孔厚度，并且具有定义为孔深与孔厚度之比的多数纵横比为至少10。
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