Patents by Inventor Guy Jonkmans
Guy Jonkmans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10670738Abstract: A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.Type: GrantFiled: May 8, 2018Date of Patent: June 2, 2020Assignee: Atomic Energy of Canada Limited / Energie Atomique Du Canada LimiteeInventors: Xiongxin Dai, Liqian Li, Guy Jonkmans, Aaron Ho
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Patent number: 10113110Abstract: Described herein is a boron-loaded liquid scintillator composition comprising a scintillation solvent including at least one linear alkylbenzene (LAB), diisopropyl naphthalene (DIN) or phenylxylyl ethane (PXE), or a combination of one or more thereof; at least one boron-containing material; one or more fluors, such as 2,5-diphenyloxazole (PPO), and optionally one or more wavelength shifters, such as 1,4-bis[2-methylstyryl]benzene (bis-MSB). The boron-containing material may comprise a carborane, such as o-carborane, especially those enriched in Boron-10. Methods of preparation of the liquid scintillator composition are also described, as well as concentrates thereof.Type: GrantFiled: February 15, 2013Date of Patent: October 30, 2018Assignee: ATOMIC ENERGY OF CANADA LIMITEDInventors: Xiongxin Dai, Bhaskar Sur, Ghaouti Bentoumi, Liqian Li, Guy Jonkmans
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Publication number: 20180275286Abstract: A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.Type: ApplicationFiled: May 8, 2018Publication date: September 27, 2018Inventors: Xiongxin Dai, Liqian Li, Guy Jonkmans, Aaron Ho
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Patent number: 9971040Abstract: A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.Type: GrantFiled: December 22, 2016Date of Patent: May 15, 2018Assignee: Atomic Energy of Canada Limited/ Énergie Atomique du Canada LimitéeInventors: Xiongxin Dai, Liqian Li, Guy Jonkmans, Aaron Ho
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Publication number: 20170146669Abstract: A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.Type: ApplicationFiled: December 22, 2016Publication date: May 25, 2017Inventors: Xiongxin Dai, Liqian Li, Guy Jonkmans, Aaron Ho
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Patent number: 9562978Abstract: A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.Type: GrantFiled: October 26, 2012Date of Patent: February 7, 2017Assignee: Atomic Energy of Canada LimitedInventors: Xiongxin Dai, Liqian Li, Guy Jonkmans, Aaron Ho
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Patent number: 9261605Abstract: The present invention provides a radiation detector for detecting both the intensity and direction of one or more sources of radiation comprising a radiation sensor, an inverse collimator that shields the sensor from at least a portion of the incident radiation originating from the direction in which the inverse collimator is pointed and a means for pointing the inverse collimator in different directions.Type: GrantFiled: October 15, 2010Date of Patent: February 16, 2016Inventors: Bhaskar Sur, Shuwei Yue, Arjun Das, Guy Jonkmans
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Publication number: 20160041270Abstract: A system for determining a radiation dose in real time can include at least one three-dimensional target object to be exposed to ionizing radiation. The at least one target object may include a scintillating gel material. The scintillating gel material may emit light when exposed to the ionizing radiation. An imaging system may be configured to capture at least a first image of the target object from a first position, and a second image of the target object from a second position relative to the target object. A controller may be connected to the imaging system and may be configured to the process the first and second images to provide a three-dimensional dose distribution in real-time.Type: ApplicationFiled: March 19, 2014Publication date: February 11, 2016Applicant: ATOMIC ENERGY OF CANADA LIMITED / ENERGIE ATOMIQUE DU CANADA LIMITEEInventors: Xlongxin Dai, Junaid Qureshi, Guy Jonkmans
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Patent number: 9035236Abstract: A method is proposed herein to detect high atomic number materials, such as Special Nuclear Materials, within a container based on muon tomography. The container is modeled as a plurality of volume elements. Information related to an initial trajectory and a final trajectory of each muon passing through the container is received. Additionally, a set of initial outer prong vectors and a set of final outer prong vectors are created. Then, a plurality of vector combinations are created from a selected initial vector and a selected final vector. A metric is determined and associated with each vector combination. A subset of the plurality of vector combinations is associated with each volume element and an estimated scattering density is determined and assigned to the volume element. Based on the estimated scattering density assigned to the volume elements, a three dimensional image of the container may be generated.Type: GrantFiled: June 7, 2012Date of Patent: May 19, 2015Assignee: Atomic Energy of Canada LimitedInventors: Vinicius Anghel, Guy Jonkmans, Cybele Jewett, Martin Thompson
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Publication number: 20150014588Abstract: Described herein is a boron-loaded liquid scintillator composition comprising a scintillation solvent including at least one linear alkylbenzene (LAB), diisopropyl naphthalene (DIN) or phenylxylyl ethane (PXE), or a combination of one or more thereof; at least one boron-containing material; one or more fluors, such as 2,5-diphenyloxazole (PPO), and optionally one or more wavelength shifters, such as 1,4-bis[2-methylstyryl]benzene (bis-MSB). The boron-containing material may comprise a carborane, such as o-carborane, especially those enriched in Boron-10. Methods of preparation of the liquid scintillator composition are also described, as well as concentrates thereof.Type: ApplicationFiled: February 15, 2013Publication date: January 15, 2015Inventors: Xiongxin DAI, Bhaskar SUR, Ghaouti BENTOUMI, Liqian LI, Guy JONKMANS
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Publication number: 20140332685Abstract: A method is proposed herein to detect high atomic number materials, such as Special Nuclear Materials, within a container based on muon tomography. The container is modeled as a plurality of volume elements. Information related to an initial trajectory and a final trajectory of each muon passing through the container is received. Additionally, a set of initial outer prong vectors and a set of final outer prong vectors are created. Then, a plurality of vector combinations are created from a selected initial vector and a selected final vector. A metric is determined and associated with each vector combination. A subset of the plurality of vector combinations is associated with each volume element and an estimated scattering density is determined and assigned to the volume element. Based on the estimated scattering density assigned to the volume elements, a three dimensional image of the container may be generated.Type: ApplicationFiled: June 7, 2012Publication date: November 13, 2014Applicant: Atomic Energy of Canada LimitedInventors: Vinicius Anghel, Guy Jonkmans, Cybele Jewett, Martin Thompson
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Publication number: 20140291531Abstract: A portable detection apparatus can include a housing, a first detector for detecting ionizing radiation from a first subject and a second detector within the housing for the detecting the background radiation. A shield within the housing can surround the first and second detectors and define a shield aperture around the first and second detectors for radiation from the subject to enter the housing. A radiation blocking member can substantially block at least a portion of the ionizing radiation from reaching the second detector, whereby radiation detected by the second detector comprises substantially only the background radiation. A processor module can be connected to the first and second detectors for determining the amount of ionizing radiation detected by the first detector attributable to secondary radiation.Type: ApplicationFiled: October 26, 2012Publication date: October 2, 2014Applicant: ATOMIC ENERGY OF CANADA LIMITED/ Énergie Atomique du CANADA LimitéeInventors: Xiongxin Dai, Liqian Li, Guy Jonkmans, Aaron Ho
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Publication number: 20130206995Abstract: The present invention provides a radiation detector for detecting both the intensity and direction of one or more sources of radiation comprising a radiation sensor, an inverse collimator that shields the sensor from at least a portion of the incident radiation originating from the direction in which the inverse collimator is pointed and a means for pointing the inverse collimator in different directions.Type: ApplicationFiled: October 15, 2010Publication date: August 15, 2013Applicant: ATOMIC ENERGY OF CANADA LIMITEDInventors: Bhaskar Sur, Shuwei Yue, Arjun Das, Guy Jonkmans