公开(公告)号：US12055500B1

公开(公告)日：2024-08-06

申请号：US17740504

申请日：2022-05-10

申请人： National Technology & Engineering Solutions of Sandia, LLC

发明人： Yuan-Yu Jau

IPC分类号： G01N23/04 ,  G01N23/09

CPC分类号： G01N23/04 ,  G01N23/09 ,  G01N2223/04 ,  G01N2223/40 ,  G01N2223/505

摘要： A method and corresponding apparatus are provided for measuring neutron spin precession in an electric field with high sensitivity suitable for practical applications in non-destructive testing, imaging, and the like. Production of a neutron beam with a polarization vector P is followed by transmitting the spin-polarized neutron beam through a sample region in which there is a target generating an electric field, polarization-analyzing the transmitted neutron beam with an analyzing direction orthogonal to P, detecting an intensity of the polarization-analyzed neutron beam; and mapping the detected neutron-beam intensity to a field-strength value for the target electric field.

公开(公告)号：US11747288B2

公开(公告)日：2023-09-05

申请号：US17279537

申请日：2019-09-25

申请人： Topcon Corporation ,  RIKEN

发明人： Shigenori Nagano ,  Hisashi Tsukada ,  Yoshie Otake ,  Koji Ikado ,  Yuichi Yoshimura ,  Hideyuki Sunaga

IPC分类号： G01N23/05 ,  G01N23/09 ,  G01N23/204 ,  G01V5/00 ,  G01N23/20008 ,  H05H3/04 ,  H05H6/00 ,  H05H7/04 ,  H05H9/00 ,  G01N23/02

CPC分类号： G01N23/204 ,  G01N23/025 ,  G01N23/05 ,  G01N23/09 ,  G01N23/20008 ,  G01V5/0025 ,  G01V5/0066 ,  H05H3/04 ,  H05H6/00 ,  H05H7/04 ,  H05H9/00 ,  G01N2223/04 ,  G01N2223/045 ,  G01N2223/053 ,  G01N2223/106 ,  G01N2223/20 ,  G01N2223/204 ,  G01N2223/33

摘要： A non-destructive inspection system 1 includes a neutron radiation source 3 capable of emitting neutrons N, and a neutron detector 14 capable of detecting neutrons Nb produced via an inspection object 6a among neutrons N emitted from the neutron radiation source 3. The neutron radiation source 3 includes a linear accelerator 11 capable of emitting charged particles P accelerated; a first magnet section 12 including magnets 12a and 12b facing each other, the magnets 12a and 12b being capable of deflecting the charged particles P in a direction substantially perpendicular to a direction of emission of the charged particles P from the linear accelerator 11; and a target section 13 capable of producing neutrons N by being irradiated with the charged particles P that have passed through the first magnet section 12.

公开(公告)号：US20180209923A1

公开(公告)日：2018-07-26

申请号：US15748051

申请日：2016-07-21

申请人： LANCASTER UNIVERSITY BUSINESS ENTERPRISES LTD

发明人： Malcolm Joyce ,  Stewart Agar ,  Edmund Colley ,  Miriam Colling ,  Joseph Dykes ,  Pheovos Kardasopoulos ,  Kate Mitton ,  Michael Aspinall

IPC分类号： G01N23/05 ,  G01N23/046

CPC分类号： G01N23/05 ,  G01N23/046 ,  G01N23/09 ,  G01T5/10

摘要： A method of obtaining neutron tomography images of a workpiece (201), by means of a neutron source (101) and a plurality of neutron detectors (107), where the neutron source is an isotopic source containing less than one gram of radioactive isotope(s); the workpiece is up to 300×300×300 mm in size; and measurements to generate at least one tomography image of a workpiece take one hour or less to obtain.

公开(公告)号：US20180024256A1

公开(公告)日：2018-01-25

申请号：US15538389

申请日：2015-12-21

申请人： Arktis Radiation Detectors Ltd.

发明人： Ulisse Gendotti ,  Rico Chandrasekharan

IPC分类号： G01T3/06 ,  G01N23/09

CPC分类号： G01T3/065 ,  G01N23/09 ,  G01T3/06 ,  G21K2004/02 ,  G21K2004/04 ,  G21K2004/10 ,  G21K2004/12

摘要： A neutron conversion foil for being used in a neutron detector includes a substrate having a first and second side. The substrate is covered at least on one of the first and second sides with a neutron conversion layer made of a neutron reactive material and being capable of capturing neutrons to thereafter emit light and/or charged particles. The neutron conversion foil is transparent to light such that light originating from the conversion of neutrons can pass through one or several of the neutron conversion foils and thereafter be collected and detected by a light sensing device.

公开(公告)号：US09612346B2

公开(公告)日：2017-04-04

申请号：US14748171

申请日：2015-06-23

申请人： Troxler Electronic Laboratories, Inc.

发明人： Robert Ernest Troxler ,  Dirk M. Steckmann ,  Donald E. Weger

IPC分类号： G01T7/00 ,  G01D18/00 ,  G01N23/09 ,  G01N23/06 ,  G01N23/203

CPC分类号： G01T7/005 ,  G01D18/008 ,  G01N23/06 ,  G01N23/09 ,  G01N23/203 ,  Y10T29/49826

摘要： A method for calibrating a nuclear gauge of the having a source includes providing a nuclear gauge comprising a radiation source, the radiation source being coupled with a computing system with a machine readable program stored thereon containing a calibration routine. An operator places the gauge on one or more specified blocks to adjust the source within each block to one or more specified positions to initiate a count. The method includes determining that the source is at each position before each count begins, adjusting the counting times before each count begins by the program on the nuclear gauge based on each position of the source to obtain calibration information, obtaining counts at each position, storing the counts within the computing system of the nuclear gauge, and calculating for each position calibration coefficients.

公开(公告)号：US09151852B1

公开(公告)日：2015-10-06

申请号：US14296332

申请日：2014-06-04

申请人： Sandia Corporation

发明人： Peter Marleau

IPC分类号： G01T1/20 ,  G01T3/06 ,  G01V5/00 ,  G01T3/00

CPC分类号： G01T3/065 ,  G01N23/09 ,  G01T3/005 ,  G01V5/0008

摘要： Various technologies pertaining to identifying a material in a sample and imaging the sample are described herein. The material is identified by computing energy-dependent attenuation of neutrons that is caused by presence of the sample in travel paths of the neutrons. A mono-energetic neutron generator emits the neutron, which is downscattered in energy by a first detector unit. The neutron exits the first detector unit and is detected by a second detector unit subsequent to passing through the sample. Energy-dependent attenuation of neutrons passing through the sample is computed based upon a computed energy of the neutron, wherein such energy can be computed based upon 1) known positions of the neutron generator, the first detector unit, and the second detector unit; or 2) computed time of flight of neutrons between the first detector unit and the second detector unit.

摘要翻译： 本文描述了关于识别样品中的材料并对样品成像的各种技术。 通过计算由中子的行进路径中样品的存在引起的中子的能量依赖衰减来识别材料。 单能中子发生器发射中子，其由能量由第一检测器单元下降。 中子离开第一检测器单元，并且在通过样品之后由第二检测器单元检测。 基于中子的计算能量计算穿过样本的中子的依赖于能量的衰减，其中可以基于1）中子发生器，第一检测器单元和第二检测器单元的已知位置来计算该能量; 或2）计算第一检测器单元和第二检测器单元之间的中子的飞行时间。

公开(公告)号：US09063062B2

公开(公告)日：2015-06-23

申请号：US13414680

申请日：2012-03-07

申请人： Donald E. Weger ,  Dirk M. Steckmann ,  Robert E. Troxler

发明人： Donald E. Weger ,  Dirk M. Steckmann ,  Robert E. Troxler

IPC分类号： G01N23/09 ,  G01D18/00

CPC分类号： G01T7/005 ,  G01D18/008 ,  G01N23/06 ,  G01N23/09 ,  G01N23/203 ,  Y10T29/49826

摘要： Nuclear gauges and method of configuration and methods of calibrations of the nuclear gauges are provided. The nuclear gauges are used in measuring the density and/or moisture of construction-related materials. The nuclear gauge can include a gauge housing having a vertical cavity therethrough and at least one radiation detector located within the housing. The nuclear gauge can include a vertically moveable source rod and a radiation source operatively positioned within a distal end of the source rod.

摘要翻译： 提供了核计量器和配置方法以及核计量仪校准方法。 核计量仪用于测量建筑材料的密度和/或水分。 核计量器可以包括具有穿过其中的垂直腔的量规壳体和位于壳体内的至少一个辐射探测器。 核计可以包括可垂直移动的源极杆和可操作地定位在源极的远端内的辐射源。

公开(公告)号：US20130208856A1

公开(公告)日：2013-08-15

申请号：US13370204

申请日：2012-02-09

申请人： Albert KLEIN

发明人： Albert KLEIN

IPC分类号： G01N23/06

CPC分类号： G01N23/087 ,  G01N23/09 ,  G01N23/12

摘要： A method for determining the concentration of an element in a material includes irradiating the material with an X-ray beam having a continuum in the area of an absorption edge of the element to be measured. The intensity of the transmitted X-ray beam is measured with an energy dispersive sensor. The intensity of the transmitted X-ray beam in an energy interval above the absorption edge and in an energy interval below the absorption edge is determined. The concentration of the element is computed on the basis of said intensities.

摘要翻译： 用于确定材料中的元素的浓度的方法包括用在待测元素的吸收边缘的区域中具有连续体的X射线束照射材料。 用能量分散传感器测量透射的X射线束的强度。 确定在吸收边缘之上的能量间隔和在吸收边缘下方的能量间隔中的透射的X射线束的强度。 基于所述强度计算元素的浓度。

公开(公告)号：US20130056643A1

公开(公告)日：2013-03-07

申请号：US13599311

申请日：2012-08-30

申请人： Vitaliy Ziskin ,  David Perticone

发明人： Vitaliy Ziskin ,  David Perticone

IPC分类号： G01N23/05 ,  G01N23/02

CPC分类号： G01N23/09 ,  G01N23/083 ,  G01N2223/423 ,  G01V5/0033

摘要： This disclosure relates to systems and methods for material discrimination. The systems and methods include a single source that generates both neutrons and photons, and a single imaging array with a common detector that detects the neutrons and the photons generated from the single source. The systems and methods allow for a determination of the contents, and/or the effective atomic number (“Z”) of the contents, of an object without physical inspection of the interior of the object.

摘要翻译： 本公开涉及用于材料鉴别的系统和方法。 系统和方法包括产生中子和光子的单个源，以及具有检测中子和从单个源产生的光子的公共检测器的单个成像阵列。 系统和方法允许确定物体的内容和/或内容的有效原子数（Z），而不对物体内部进行物理检查。

公开(公告)号：US08384018B2

公开(公告)日：2013-02-26

申请号：US12852032

申请日：2010-08-06

申请人： Alexander Joseph Esin ,  Nikolay Baturin ,  Alex Kulik ,  Michael G. Brosseau

发明人： Alexander Joseph Esin ,  Nikolay Baturin ,  Alex Kulik ,  Michael G. Brosseau

IPC分类号： G01V5/10

CPC分类号： G01N23/09

摘要： An analyzer having a detector and a neutron source assembly adjacent to the detector is disclosed, wherein the neutron source assembly has a neutron source and a shielding source holder.

摘要翻译： 公开了一种具有与检测器相邻的检测器和中子源组件的分析器，其中中子源组件具有中子源和屏蔽源保持器。