公开(公告)号：US20140042330A1

公开(公告)日：2014-02-13

申请号：US13753458

申请日：2013-01-29

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： Tsahi Gozani ,  Michael Joseph King ,  Donald Bennett Hilliard ,  Joseph Bendahan

IPC: G01T1/203

CPC classification number: G01T3/06 ,  G01T1/167 ,  G01T1/2008 ,  G01T1/203 ,  G01T3/008 ,  G01V5/0075 ,  G01V5/0091 ,  H01J43/08 ,  H01J43/30

Abstract: The present invention provides a gamma-neutron detector based on mixtures of thermal neutron absorbers that produce heavy-particle emission following thermal capture. In one configuration, B-10 based detector is used in a parallel electrode plate geometry that integrates neutron moderating sheets, such as polyethylene, on the back of the electrode plates to thermalize the neutrons and then detect them with high efficiency. The moderator can also be replaced with plastic scintillator sheets viewed with a large area photomultiplier tube to detect gamma-rays as well. The detector can be used in several scanning configurations including portal, drive-through, drive-by, handheld and backpack, etc.

Abstract translation: 本发明提供了一种基于热中子吸收剂的混合物的γ中子检测器，其在热捕获之后产生重粒子发射。 在一种配置中，基于B-10的检测器用于平行电极板几何形状，其将中子调节片（例如聚乙烯）集成在电极板的背面上，以使中子热化，然后以高效率进行检测。 调节剂也可以用用大面积光电倍增管观察的塑料闪烁体片替代，以检测伽马射线。 检测器可用于多种扫描配置，包括门禁，驱动器，驱动器，手持和背包等。

公开(公告)号：WO2022183191A1

公开(公告)日：2022-09-01

申请号：PCT/US2022/070799

申请日：2022-02-23

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： CARRINGTON, Neil Duncan

IPC: G01N23/203

Abstract: The present specification describes a system for eliminating X-ray crosstalk between a plurality of X-ray scanning systems and passive radiation detectors. The system includes a frequency generator for generating a common operational frequency, a high-energy X-ray source or scanning system coupled with the frequency generator for receiving the common operational frequency and configured to modify the pulse repetition frequency of the high- energy X-ray source or scanning system in order to synchronize with the common operational frequency and a low-energy X-ray scanning system and/or passive radiation detection system coupled with the frequency generator for receiving the common operational frequency and having a processing module configured to remove data associated with the common operational frequency at an instance of time if the high-energy X-ray source or scanning system has emitted X-rays at the instance of time.

公开(公告)号：WO2021173122A1

公开(公告)日：2021-09-02

申请号：PCT/US2020/019726

申请日：2020-02-25

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： DE ANTONIS, Paul ,  MORTON, Edward, James ,  LUGGAR, Russell, David

IPC: G01N27/72 ,  G01V5/00 ,  H01J35/06

Abstract: An improved X-ray source is disclosed. The improved X-ray source has an enclosure, electron guns, a first set of address lines extending through the enclosure, a second set of address lines extending through the enclosure, and nodes defined by the intersection of the first and second set of address lines. Each of the electron guns is coupled to one of the nodes such that a state of each electron gun is uniquely controlled by modulating a state of one of the first set of address lines and one of the second set of address lines.

公开(公告)号：WO2020263237A1

公开(公告)日：2020-12-30

申请号：PCT/US2019/039106

申请日：2019-06-26

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： SHAW, Bradley, Douglas ,  ROGERS, William ,  ROMANOV, Vladimir ,  MAINES, Adam, Justin ,  HOEHING, Brittney ,  BEREZUTSKIY, Gennadiy, N. ,  BISTANY, Kurt, R.

IPC: G01N1/22

Abstract: Embodiments of the present specification provide methods and systems for clearing a detector of contaminants or any other undesirable substances that may affect operation of detector. The methods and systems enable a clear-down mode to clear the detector after an alarm is detected during sampling by the detector. The clear-down mode may be enabled immediately upon detecting a substance of interest. Further, the clear-down mode is effective to increase and direct all air flow through the detector in order to maximally purge contaminants from the detector.

公开(公告)号：WO2019147748A2

公开(公告)日：2019-08-01

申请号：PCT/US2019/014872

申请日：2019-01-24

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： VERKERK, Udo, H. ,  ROMANOV, Vladimir ,  JENNINGS, Alison ,  LAI, Hanh, T. ,  HOPKINSON, Alan

IPC: H01J49/04

Abstract: A surface ionizer for a trace detection system includes an extreme ultraviolet light source and an ion transfer line. Activation of the extreme ultraviolet light disrupts a surface of a sample along with residue and ionizes the resulting vapor. The ionized vapor is collected in the ion transfer line and passed into an analysis device for detection of components in the vapor.

公开(公告)号：WO2018195016A1

公开(公告)日：2018-10-25

申请号：PCT/US2018/027872

申请日：2018-04-17

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： MORTON, Edward, James

IPC: A61B6/00 ,  G01N23/04

Abstract: An X-ray inspection system for scanning items is provided. The system includes: a stationary X-ray source extending around a rectangular scanning volume, and defining multiple source points from which X-rays can be directed through the scanning volume; an X-ray detector array also extending around the rectangular scanning volume and arranged to detect X-rays from the source points which have passed through the scanning volume; a conveyor arranged to convey the items through the scanning volume; and at least one processor for processing the detected X-rays to produce scanning images of the items.

公开(公告)号：WO2018125441A1

公开(公告)日：2018-07-05

申请号：PCT/US2017/062888

申请日：2017-11-21

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： LAI, Hanh, T. ,  GOEDECKE, Karl

IPC: H01J49/06

Abstract: An ionization chamber. The ionization chamber includes a vessel, an ionization source, an ion gate, and a mid-ring electrode. The vessel defines an ionization region. The vessel includes a first end axially disposed opposite a second end. The ionization source is located at the first end and generates ions. The ion gate is located at the second end of the vessel. The mid-ring electrode is located between the ionization source and the ion gate. During an ion compression stage, the ionization source is charged to a first ionization source potential, the ion gate is charged to a first ion gate potential, and the mid-ring electrode is charged to a first mid-ring potential that is less than the first ionization source potential and the first ion gate potential. The first mid-ring potential is configured to generate a potential well proximate the mid- ring electrode. The ions collect at the potential well.

公开(公告)号：WO2018119092A8

公开(公告)日：2018-06-28

申请号：PCT/US2017/067632

申请日：2017-12-20

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： SCHMIDT, Hartwig ,  PATTERSON, Michael, E. ,  LUKOW, Stefan, R. ,  GONTHIER, Kenneth, R. ,  LAI, Hanh, T. ,  MISHRA, Vibha

IPC: G01F1/684 ,  B01D59/44 ,  G01F1/00 ,  G01F1/68 ,  G01F5/00 ,  H01J49/00

Abstract: The present disclosure is directed to methods and systems for calibration, calibration verification, and sensitivity checks for a detector. The methods and systems include calibrating a detector by releasing at least one calibrant from at least one calibrant chamber in flow communication with the detector. The systems and methods further include verifying the calibration by releasing at least one verification substance from at least one verification chamber in flow communication with the detector. The systems and methods further include checking a sensitivity of the detector by releasing at least one sensitivity substance from at least one sensitivity chamber in flow communication with the detector.

公开(公告)号：WO2016115370A1

公开(公告)日：2016-07-21

申请号：PCT/US2016/013441

申请日：2016-01-14

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： FRANCO, Edward, D. ,  LANGEVELD, Willem, G. J. ,  BENDAHAN, Joseph ,  JANECEK, Martin ,  STRELLIS, Dan

IPC: G01N9/24 ,  G01N23/083 ,  G01V5/12

CPC classification number: G01V5/0025 ,  G01N23/046 ,  G01N23/20083 ,  G01V5/0041 ,  G01V5/005 ,  G21K1/02 ,  G21K1/025

Abstract: The present specification discloses methods for inspecting liquids, aerosols and gels (LAGs) for threats. The method includes scanning LAGs packed in plastic bags in a multiple step process. In a primary scan, the bag is scanned using dual energy CT technique with fan beam radiation. In case of an alarm, the alarming LAG container is scanned again using coherent X-ray scatter technique with cone beam radiation. The system has a mechanism to switch between two collimators to produce either fan beam or cone beam. The system also has a mechanism to position the target properly for scanning and prevent container overlap when scanning multiple LAG containers in a bag.

Abstract translation: 本说明书公开了用于检测液体，气溶胶和凝胶（LAG）的威胁的方法。 该方法包括以多步骤过程扫描包装在塑料袋中的LAG。 在主扫描中，使用扇形光束辐射的双能量CT技术对袋进行扫描。 在发生报警的情况下，使用具有锥形束辐射的相干X射线散射技术再次扫描警报的LAG容器。 该系统具有在两个准直器之间切换以产生扇形束或锥形束的机构。 该系统还具有一个机构，用于在扫描袋中的多个LAG容器时适当地定位目标以扫描并防止容器重叠。

公开(公告)号：WO2015020710A3

公开(公告)日：2015-02-12

申请号：PCT/US2014/037571

申请日：2014-05-09

Applicant: RAPISCAN SYSTEMS, INC.

Inventor： GOZANI, Tsahi ,  BENDAHAN, Joseph ,  KING, Michael, Joseph ,  SHAW, Timothy, John ,  STEVENSON, John, David

IPC: G01T3/06 ,  G21K1/02

Abstract: The present specification discloses methods for inspecting an object. The method includes scanning an object in a two-step process. In the primary scan, a truck or cargo container (container) is completely scanned with a fan beam radiation, the transmitted radiation is measured with an array of detectors, and the transmission information and optionally the fission signatures are analyzed to determine the presence of high-density, high-Z and fissionable materials. If the container alarms in one or more areas, the areas are subjected to a secondary scan. This is done by precisely repositioning the container to the location of the suspect areas, adjusting the scanning system to focus on the suspect areas, performing a stationary irradiation of the areas, and analyzing the measured feature signatures to clear or confirm the presence of SNM.