DRIFT TUBE BOREHOLE MUON DETECTOR SYSTEM, APPARATUS, AND METHOD FOR MUON RADIOGRAPHY AND TOMOGRAPHY

    公开(公告)号:US20250138216A1

    公开(公告)日:2025-05-01

    申请号:US18942352

    申请日:2024-11-08

    Abstract: A borehole muon detector for muon radiography or geotomography is provided, the borehole muon detector including a substantially cylindrical housing, which defines a bore, a pair of end caps, each end cap sealing an end of the cylindrical housing and a plurality of sealed drift tubes which are longitudinally disposed in the bore of the housing to form a bundle of drift tubes, wherein each sealed drift tube comprises: a centrally located anode wire disposed on a longitudinal axis; an inner surface which is coated with a cathode coating, the cathode coating divided into a first cathode pad and a second cathode pad by a Vernier pattern; and a timer in electrical communication with the anode wire for measuring a drift time. A system and a method are also provided.

    SYSTEM AND METHOD FOR IMAGING SUBSURFACE DENSITY USING COSMIC RAY MUONS

    公开(公告)号:US20250052149A1

    公开(公告)日:2025-02-13

    申请号:US18922319

    申请日:2024-10-21

    Abstract: A longitudinally extending detector drill rod is connectable at each of its longitudinal ends to another drill rod in a drill string and is deployable, as part of the drill string, to a location below a surface of the earth for detecting cosmic ray muons that penetrate the surface of the earth. The detector drill rod comprises: a drill rod bore-defining surface that defines a longitudinally extending drill rod bore; and one or more muon sensors located in the drill rod bore, the one or more muon sensors responsive to muons interacting therewith.

    Drift tube borehole muon detector system, apparatus, and method for muon radiography and tomography

    公开(公告)号:US12292544B2

    公开(公告)日:2025-05-06

    申请号:US18346688

    申请日:2023-07-03

    Abstract: A borehole muon detector for muon radiography or geotomography is provided, the borehole muon detector including a substantially cylindrical housing, which defines a bore, a pair of end caps, each end cap sealing an end of the cylindrical housing and a plurality of sealed drift tubes which are longitudinally disposed in the bore of the housing to form a bundle of drift tubes, wherein each sealed drift tube comprises: a centrally located anode wire disposed on a longitudinal axis; an inner surface which is coated with a cathode coating, the cathode coating divided into a first cathode pad and a second cathode pad by a Vernier pattern; and a timer in electrical communication with the anode wire for measuring a drift time. A system and a method are also provided.

    MUON TOMOGRAPHY SYSTEM, APPARATUS, AND METHOD FOR TUNNEL DETECTION

    公开(公告)号:US20240418900A1

    公开(公告)日:2024-12-19

    申请号:US18796272

    申请日:2024-08-06

    Abstract: A system for passively monitoring territory proximate to or at restrictive boundaries for tunnels, the system comprising a plurality of muon sensors, a data network in communication with each muon sensor, a power network in electrical communication with each muon sensor, and a data analysis unit, the data analysis unit in communication with each muon sensor via the data network, the data analysis unit comprising a memory and a processor, the memory configured to instruct the processor to analyse data from the plurality of muon detectors to identify and locate a new or emerging tunnel. A method of locating tunnels is also provided.

    GEM SYSTEM, APPARATUS, AND METHOD FOR TRACKING COSMIC RAY MUONS

    公开(公告)号:US20230324571A1

    公开(公告)日:2023-10-12

    申请号:US18306180

    申请日:2023-04-24

    CPC classification number: G01T1/2935 G01T1/2985 H01J43/06

    Abstract: A gas electron multiplier (GEM), used to track cosmic ray muons, can have readout electrodes oriented in a helical pattern so that it can fit inside a narrow aperture borehole. The helical orientation of the readout electrodes provides for high spatial resolution and yet is cost effective to manufacture. The GEM can have an insulation layer, a plurality of conduction layers and an inner layer comprising a plurality of helical conductive stripes extending between two ends of the GEM.

    APPARATUS, SYSTEM AND METHOD REGARDING BOREHOLE MUON DETECTOR FOR MUON RADIOGRAPHY AND TOMOGRAPHY

    公开(公告)号:US20240345279A1

    公开(公告)日:2024-10-17

    申请号:US18643944

    申请日:2024-04-23

    Abstract: A borehole muon detector comprises a sensor housed in a housing, the sensor including: a plurality of photodetector elements; at least one printed circuit board in electrical communication with the plurality of photodetectors and including an integrated electronic circuit for tracking time; a first helical bundle of scintillator fibers; and an oppositely wound helical bundle of scintillator fibers. Each scintillator fiber of each bundle is optically connected to a photodetector. The sensor comprises a plurality of scintillator bars, each comprising an optical fiber extending from a first end to a second end, and vertically disposed in the bore defined by the helical bundles of fibers. Each optical fiber of each scintillator bar is optically connected to a photodetector element.

    Muon tomography system, apparatus, and method for tunnel detection

    公开(公告)号:US12085689B2

    公开(公告)日:2024-09-10

    申请号:US17599915

    申请日:2020-04-03

    CPC classification number: G01V5/04 G01N9/24 G01N2223/205

    Abstract: A system for passively monitoring territory proximate to or at restrictive boundaries for tunnels, the system comprising a plurality of muon sensors, a data network in communication with each muon sensor, a power network in electrical communication with each muon sensor, and a data analysis unit, the data analysis unit in communication with each muon sensor via the data network, the data analysis unit comprising a memory and a processor, the memory configured to instruct the processor to analyse data from the plurality of muon detectors to identify and locate a new or emerging tunnel. A method of locating tunnels is also provided.

    Drift tube borehole muon detector system, apparatus, and method for muon radiography and tomography

    公开(公告)号:US12007527B2

    公开(公告)日:2024-06-11

    申请号:US16975499

    申请日:2020-03-20

    CPC classification number: G01V5/005 G01T1/20 G01V5/04 H01J47/008

    Abstract: A borehole muon detector for muon radiography or geotomography is provided, the borehole muon detector including a substantially cylindrical housing, which defines a bore, a pair of end caps, each end cap sealing an end of the cylindrical housing and a plurality of sealed drift tubes which are longitudinally disposed in the bore of the housing to form a bundle of drift tubes, wherein each sealed drift tube comprises: a centrally located anode wire disposed on a longitudinal axis; an inner surface which is coated with a cathode coating, the cathode coating divided into a first cathode pad and a second cathode pad by a Vernier pattern; and a timer in electrical communication with the anode wire for measuring a drift time. A system and a method are also provided.

    Apparatus, system and method regarding borehole muon detector for muon radiography and tomography

    公开(公告)号:US11994645B2

    公开(公告)日:2024-05-28

    申请号:US17614478

    申请日:2020-05-26

    Abstract: A borehole muon detector for detecting and characterizing a geographic region of interest is provided, the borehole muon detector comprising a housing and sensor, which is housed in the housing, the sensor including: a plurality of photodetector elements; at least one printed circuit board in electrical communication with the plurality of photodetectors and including an integrated electronic circuit for tracking time; a first helical bundle of scintillator fibers; an oppositely wound helical bundle of scintillator fibers, the oppositely wound helical bundle, the first helical bundle and the opposite helical bundle defining an outer cylinder, which includes a first end and a second end and a bore therebetween, each scintillator fiber of each bundle directly optically connected to a photodetector element at least at one end and indirectly optically connected to the photodetector element at no more than one end; and a plurality of scintillator bars, each comprising a first end, a second end and an optical fiber extending from the first end to the second end, the plurality of scintillator bars vertically disposed in the bore of the outer cylinder, each optical fiber of the scintillator bar optically directly connected to a photodetector element at least at one end and indirectly optically connected to the photodetector at no more than one end.

    DRIFT TUBE BOREHOLE MUON DETECTOR SYSTEM, APPARATUS, AND METHOD FOR MUON RADIOGRAPHY AND TOMOGRAPHY

    公开(公告)号:US20240004102A1

    公开(公告)日:2024-01-04

    申请号:US18346688

    申请日:2023-07-03

    CPC classification number: G01V5/005 G01T1/20 G01V5/04 H01J47/008

    Abstract: A borehole muon detector for muon radiography or geotomography is provided, the borehole muon detector including a substantially cylindrical housing, which defines a bore, a pair of end caps, each end cap sealing an end of the cylindrical housing and a plurality of sealed drift tubes which are longitudinally disposed in the bore of the housing to form a bundle of drift tubes, wherein each sealed drift tube comprises: a centrally located anode wire disposed on a longitudinal axis; an inner surface which is coated with a cathode coating, the cathode coating divided into a first cathode pad and a second cathode pad by a Vernier pattern; and a timer in electrical communication with the anode wire for measuring a drift time. A system and a method are also provided.

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