公开(公告)号：US07863567B1

公开(公告)日：2011-01-04

申请号：US12386089

申请日：2009-04-13

申请人： Michael V. Hynes ,  Bernard Harris ,  Eugene E. Lednum ,  Mark S. Wallace ,  Larry J. Schultz ,  David M. Palmer ,  Daniel T. Wakeford ,  Hugh R. Andrews ,  Richard C. Lanza ,  Edward T. H. Clifford ,  Harry Ing ,  Liqian Li ,  Andrew Hoover ,  Shawn R. Tornga ,  Richard M. Kippen

发明人： Michael V. Hynes ,  Bernard Harris ,  Eugene E. Lednum ,  Mark S. Wallace ,  Larry J. Schultz ,  David M. Palmer ,  Daniel T. Wakeford ,  Hugh R. Andrews ,  Richard C. Lanza ,  Edward T. H. Clifford ,  Harry Ing ,  Liqian Li ,  Andrew Hoover ,  Shawn R. Tornga ,  Richard M. Kippen

IPC分类号： G01T1/00

CPC分类号： G01T1/295 ,  G01T7/00

摘要： According to one embodiment, generating image data includes receiving coded aperture imaging sensor data collected according to coded aperture imaging and receiving Compton imaging sensor data collected according to Compton imaging. The coded aperture imaging sensor data and the Compton imaging sensor data are generated by a sensor system sensing radiation from a radiation source. A coded aperture imaging pixel value and a Compton imaging pixel value are determined for each pixel of an image. A combining function comprising addition is applied to the coded aperture imaging pixel value and the Compton imaging pixel value to yield a combined pixel value for each pixel. Combined image data is generated from the combined pixel values. The combined image data is configured to yield a combined image of the radiation source.

摘要翻译： 根据一个实施例，产生图像数据包括接收根据编码孔径成像收集的编码孔径成像传感器数据，并接收根据Compton成像收集的康普顿成像传感器数据。 编码孔径成像传感器数据和康普顿成像传感器数据由感测来自辐射源的辐射的传感器系统产生。 针对图像的每个像素确定编码孔径成像像素值和康普顿成像像素值。 将包括加法的组合功能应用于编码孔径成像像素值和康普顿成像像素值，以产生每个像素的组合像素值。 从组合的像素值生成组合的图像数据。 组合的图像数据被配置为产生辐射源的组合图像。

公开(公告)号：US08975593B1

公开(公告)日：2015-03-10

申请号：US13612356

申请日：2012-09-12

申请人： David J. Best ,  Daniel T. Wakeford ,  Hugh Robert Andrews ,  Harry Ing ,  Marius Facina ,  Michael Dick

发明人： David J. Best ,  Daniel T. Wakeford ,  Hugh Robert Andrews ,  Harry Ing ,  Marius Facina ,  Michael Dick

IPC分类号： G01T3/00

CPC分类号： G01T3/008

摘要： A gas avalanche neutron detector (GAND) filled with counting gas for detecting thermal neutrons or neutron radiation without the use of a conventional proportional counter is provided. The GAND may include a layer of thermalization material, a cathode having a face with a layer of material, exhibiting neutron capture followed by charged particle emission such as Boron-10, a microstructure amplifier, and an anode. Thermal neutrons may enter the detector and interact with the material on the face of the cathode producing alpha particles. The alpha particles may ionize the counting gas inside the detector and produce ionization electrons. The cathode, microstructure amplifier and anode may have voltages applied that create electric fields that cause the ionization electrons to drift toward the microstructure amplifier. The microstructure then accelerates the electrons causing an avalanche effect within the gas and provides an amplification of the signal dramatically increasing neutron detection sensitivity.

摘要翻译： 提供了一种填充有用于检测热中子或中子辐射的计数气体的气体雪崩中子探测器（GAND），而不使用常规比例计数器。 GAND可以包括一层热化材料，一个具有一层材料的阴极，显示中子俘获，然后是带电粒子发射，如硼-10，微结构放大器和阳极。 热中子可能进入检测器并与阴极产生α粒子的物质相互作用。 α粒子可以将检测器内的计数气体电离并产生电离电子。 阴极，微结构放大器和阳极可以具有施加的电压，其产生导致电离电子漂移到微结构放大器的电场。 微结构然后加速电子，导致气体内的雪崩效应，并提供信号的放大，显着增加中子检测灵敏度。