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    SUBSURFACE CONTINUOUS RADIOISOTOPE ENVIRONMENTAL MONITOR
    241.
    发明公开
    SUBSURFACE CONTINUOUS RADIOISOTOPE ENVIRONMENTAL MONITOR 审中-公开

    公开(公告)号：US20230146249A1

    公开(公告)日：2023-05-11

    申请号：US17977310

    申请日：2022-10-31

    Applicant: JEFFERSON SCIENCE ASSOCIATES, LLC

    Inventor： John E. McKisson ,  Brian Kross ,  John McKisson

    IPC: G01V5/06 ,  G01V5/04 ,  G01T1/17 ,  G01T1/20

    CPC classification number: G01V5/06 ,  G01V5/045 ,  G01T1/17 ,  G01T1/2006 ,  G01T1/201 ,  G01T1/20185 ,  G01T1/20188

    Abstract: A subsurface continuous radioisotope environmental monitor that provides a continuous monitoring of the possible presence of radioactive species in subsurface groundwater. The detector and all supporting system elements are specifically constructed and equipped to be permanently mounted in a well or borehole to continuously detect and record radiation decay of radioactive species that are borne by subsurface water flow to that sampling area. The system operates by placing a detection element in a housing such that subsurface water that reaches the bore or well can flow in contact with the detection element. The system can employ several detection modes and materials. The detector includes SiPMs operating in a coincidence spectroscopy configuration to significantly reduce spurious signals due to thermal noise as well as increasing the total amount of signals collected.

    Bismuth-charged structured solid organic scintillator
    245.
    发明授权
    Bismuth-charged structured solid organic scintillator 有权

    公开(公告)号：US09829584B1

    公开(公告)日：2017-11-28

    申请号：US15538599

    申请日：2015-12-18

    Applicant: Commissariat A L'Energie Atomique et Aux Energies Alternatives

    Inventor： Stéphane Darbon ,  Matthieu Hamel ,  Adrien Rousseau ,  Tony Caillaud

    IPC: G01T1/20

    CPC classification number: G01T1/201 ,  G01T1/2002

    Abstract: A scintillator for imaging using X-rays or gamma rays or charged particles, includes a network of glass capillaries with an inner diameter no greater than 500 micrometers. The capillaries are filled with a polymer material made up of at least (i) a monomer selected from the group comprising vinyltoluene, styrene and vinylxylene and the isomers thereof, (ii) a cross-linking agent made up of a divinylbenzene or a dimethacrylate having a central chain which includes 1 to 12 carbon atoms, and (iii) triphenylbismuth. The cross-linking agent is provided to make up 10 wt % to 60% wt of the mixture thereof with the monomer, and the triphenylbismuth makes up at least 5 wt %. The cross-linking agent is provided in a ratio of 0.75 to 2.25 times the weight content of the triphenylbismuth.

    Luminescent beam stop
    247.
    发明授权
    Luminescent beam stop 有权

    公开(公告)号：US09798018B2

    公开(公告)日：2017-10-24

    申请号：US15069590

    申请日：2016-03-14

    Applicant: The Regents of the University of California

    Inventor： Diane Bryant ,  Simon A. Morton

    IPC: G01T1/20 ,  G21H3/02 ,  G21K1/10

    CPC classification number: G01T1/201 ,  G01T1/2006 ,  G21H3/02 ,  G21K1/10

    Abstract: This disclosure provides systems, methods, and apparatus related to beam stops. In one aspect, a device comprises a luminescent material, a beam stop plate, and an optical fiber. The luminescent material is a parallelepiped having a first side and a second side that are squares and having a third side that is a rectangle or a square. The first side and the second side are perpendicular to the third side. The beam stop plate is attached to the first side of the luminescent material. The optical fiber has a first end and a second end, with the first end of the optical fiber attached to the third side of the luminescent material.

    Method and apparatus for imaging of radiation sources
    249.
    发明授权
    Method and apparatus for imaging of radiation sources 有权
    辐射源成像方法和装置

    公开(公告)号：US09588232B2

    公开(公告)日：2017-03-07

    申请号：US14872795

    申请日：2015-10-01

    Applicant: Lightpoint Medical Ltd.

    Inventor： Alan Green ,  Vyas Kunal ,  David Tuch

    IPC: G01T1/20 ,  G01T1/161 ,  G01T1/36

    CPC classification number: G01T1/2002 ,  G01T1/161 ,  G01T1/201 ,  G01T1/2018 ,  G01T1/362

    Abstract: A fiberscope comprises a scintillator arranged to produce light of a first wavelength upon exposure to radiation; an optical system arranged to receive and direct light of the first wavelength emitted from the scintillator, the light being received at one end of the optical system, and wherein one or more elements of the optical system emits scintillation light of a second wavelength upon exposure to radiation; and an optical filter, disposed at the other end of the optical system, and arranged to transmit light of the first wavelength and block light of the second wavelength. The scintillator is chosen such that the light of the first wavelength is spectrally distinct from the light of the second wavelength.

    Abstract translation: 纤维内窥镜包括布置成在暴露于辐射时产生第一波长的光的闪烁体; 光学系统，布置成接收和引导从闪烁体发射的第一波长的光，所述光在光学系统的一端被接收，并且其中光学系统的一个或多个元件在暴露于第二波长时发射第二波长的闪烁光 辐射; 以及光学滤波器，设置在所述光学系统的另一端，并被布置成透射所述第一波长的光并且阻挡所述第二波长的光。 选择闪烁体使得第一波长的光在光谱上与第二波长的光不同。

    Solid state photomultiplier
    250.
    发明授权
    Solid state photomultiplier 有权
    固态光电倍增管

    公开(公告)号：US09575191B2

    公开(公告)日：2017-02-21

    申请号：US15174122

    申请日：2016-06-06

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Sergei Ivanovich Dolinsky ,  David Leo McDaniel

    IPC: G01J1/20 ,  G01T1/24 ,  G01T1/20 ,  H01L31/115 ,  H01L27/144 ,  H01L27/146 ,  G01T1/208

    CPC classification number: G01T1/248 ,  G01T1/201 ,  G01T1/2018 ,  G01T1/208 ,  G01T1/247 ,  G01T1/249 ,  H01L27/1443 ,  H01L27/14612 ,  H01L27/14636 ,  H01L27/14663 ,  H01L31/115

    Abstract: Embodiments of a solid state photomultiplier are provided herein. In some embodiments, a solid state photomultiplier may include a microcell configured to generate an analog signal when exposed to optical photons, a quench resistor electrically coupled to the microcell in series; and a first switch disposed between the quench resistor and an output of the solid state photomultiplier, the first switch electrically coupled to the microcell via the quench resistor and configured to selectively couple the microcell to the output.

    Abstract translation: 本文提供了固态光电倍增管的实施例。 在一些实施例中，固态光电倍增管可以包括配置成当暴露于光学光子时产生模拟信号的微单元，与微电池串联电耦合的骤冷电阻器; 以及设置在所述淬火电阻器和所述固态光电倍增管的输出端之间的第一开关，所述第一开关经由所述骤冷电阻器电耦合到所述微电池并且被配置为选择性地将所述微电池耦合到所述输出端。

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