Patents by Inventor Jerel A. Smith
Jerel A. Smith 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: 10466183Abstract: A system for characterizing the material of an object scanned via a dual-energy computed tomography scanner is provided. The system generates photoelectric and Compton sinograms based on a photoelectric-Compton decomposition of low-energy and high-energy sinograms generated from the scan and based on a scanner spectral response model. The system generates a Compton volume with Compton attenuation coefficients from the Compton sinogram and a photoelectric volume with photoelectric attenuation coefficients from the photoelectric sinogram. The system generates an estimated effective atomic number for a voxel and an estimated electron density for the voxel from the Compton attenuation coefficient and photoelectric coefficient for the voxel and scanner-specific parameters. The system then characterizes the material within the voxel based on the estimated effective atomic number and estimated electron density for the voxel.Type: GrantFiled: October 31, 2016Date of Patent: November 5, 2019Assignee: Lawrence Livermore National Security, LLCInventors: Isaac Seetho, Maurice B. Aufderheide, Stephen G. Azevedo, William D. Brown, Kyle Champley, Daniel Schneberk, G. Patrick Roberson, Jeffrey S. Kallman, Harry E. Martz, Jr., Jerel A. Smith
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Publication number: 20180120241Abstract: A system for characterizing the material of an object scanned via a dual-energy computed tomography scanner is provided. The system generates photoelectric and Compton sinograms based on a photoelectric-Compton decomposition of low-energy and high-energy sinograms generated from the scan and based on a scanner spectral response model. The system generates a Compton volume with Compton attenuation coefficients from the Compton sinogram and a photoelectric volume with photoelectric attenuation coefficients from the photoelectric sinogram. The system generates an estimated effective atomic number for a voxel and an estimated electron density for the voxel from the Compton attenuation coefficient and photoelectric coefficient for the voxel and scanner-specific parameters. The system then characterizes the material within the voxel based on the estimated effective atomic number and estimated electron density for the voxel.Type: ApplicationFiled: October 31, 2016Publication date: May 3, 2018Inventors: Isaac Seetho, Maurice B. Aufderheide, Stephen G. Azevedo, William D. Brown, Kyle Champley, Daniel Schneberk, G. Patrick Roberson, Jeffrey S. Kallman, Harry E. Martz, JR., Jerel A. Smith
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Patent number: 9285325Abstract: Further, the present specification is directed towards personnel screening systems comprising modular components, including detector and source units, where a dual axis scanning beam is employed. In one configuration, the subject under inspection remains stationary and is positioned between two scanning modules. The X-ray source assembly is designed to minimize the overall system footprint while still yielding the requisite field of view, low radiation exposure level, and required resolution. The modular components allow for a compact, light and yet sufficiently rugged overall structure that can be disassembled for ease of transportation and is also simple to reassemble at a required site for inspection.Type: GrantFiled: December 12, 2013Date of Patent: March 15, 2016Assignee: Rapiscan Systems, Inc.Inventors: Stephen Gray, Ronald Hughes, Jerel Smith
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Publication number: 20160041298Abstract: Further, the present specification is directed towards personnel screening systems comprising modular components, including detector and source units, where a dual axis scanning beam is employed. In one configuration, the subject under inspection remains stationary and is positioned between two scanning modules. The X-ray source assembly is designed to minimize the overall system footprint while still yielding the requisite field of view, low radiation exposure level, and required resolution. The modular components allow for a compact, light and yet sufficiently rugged overall structure that can be disassembled for ease of transportation and is also simple to reassemble at a required site for inspection.Type: ApplicationFiled: December 12, 2013Publication date: February 11, 2016Applicant: Rapiscan Systems, Inc.Inventors: Stephen Gray, Ronald Hughes, Jerel Smith
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Patent number: 8638904Abstract: Further, the present specification is directed towards personnel screening systems comprising modular components, including detector and source units, where a dual axis scanning beam is employed. In one configuration, the subject under inspection remains stationary and is positioned between two scanning modules. The X-ray source assembly is designed to minimize the overall system footprint while still yielding the requisite field of view, low radiation exposure level, and required resolution. The modular components allow for a compact, light and yet sufficiently rugged overall structure that can be disassembled for ease of transportation and is also simple to reassemble at a required site for inspection.Type: GrantFiled: March 14, 2011Date of Patent: January 28, 2014Assignee: Rapiscan Systems, Inc.Inventors: Stephen Gray, Ronald Hughes, Jerel Smith
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Publication number: 20110274250Abstract: Further, the present specification is directed towards personnel screening systems comprising modular components, including detector and source units, where a dual axis scanning beam is employed. In one configuration, the subject under inspection remains stationary and is positioned between two scanning modules. The X-ray source assembly is designed to minimize the overall system footprint while still yielding the requisite field of view, low radiation exposure level, and required resolution. The modular components allow for a compact, light and yet sufficiently rugged overall structure that can be disassembled for ease of transportation and is also simple to reassemble at a required site for inspection.Type: ApplicationFiled: March 14, 2011Publication date: November 10, 2011Inventors: Stephen Gray, Ronald Hughes, Jerel Smith
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Patent number: 7005664Abstract: Methods and device are provided for improved storage screen readout. In one embodiment, a storage screen readout device comprises a first wavelength source and a second wavelength source, means of collecting phosphorescence stimulated by the sources, and means of effecting relative motion between the sources and the screen in order to obtain image information. The first wavelength may be selected to pump signal on the screen to be more easily readout by said second wavelength source. The sources may direct energy sequentially onto the screen, simultaneously onto the screen, any combination of the two, or combinations with other sources.Type: GrantFiled: November 29, 2004Date of Patent: February 28, 2006Assignee: Alara, Inc.Inventors: Christopher R. Mitchell, Jerel Smith
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Publication number: 20050167622Abstract: Methods and device are provided for improved storage screen readout. In one embodiment, a storage screen readout device comprises a first wavelength source and a second wavelength source, means of collecting phosphorescence stimulated by the sources, and means of effecting relative motion between the sources and the screen in order to obtain image information. The first wavelength may be selected to pump signal on the screen to be more easily readout by said second wavelength source. The sources may direct energy sequentially onto the screen, simultaneously onto the screen, any combination of the two, or combinations with other sources.Type: ApplicationFiled: November 29, 2004Publication date: August 4, 2005Applicant: ALARA, INC.Inventors: Christopher Mitchell, Jerel Smith
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Publication number: 20050012057Abstract: Methods and device are provided for improved storage screen erasure. A storage screen erasure device comprises a first wavelength source and a second wavelength source. The first wavelength may be selected to pump signal on the screen to be more easily erased by said second wavelength source. The sources may direct energy sequentially onto the screen, it may occur simultaneously, or any combination of the two.Type: ApplicationFiled: May 10, 2004Publication date: January 20, 2005Applicant: ALARA, INC.Inventors: Jerel Smith, Christopher Mitchell