Patents by Inventor Vladimir A. Lobastov
Vladimir A. Lobastov 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: 10117626Abstract: Some embodiments are associated with an input signal comprising a first and a second photon event incident on a photon-counting semiconductor detector. A relatively slow charge collection shaping amplifier may receive the input signal and output an indication of a total amount of energy associated with the superposition of the first and second events. A relatively fast charge collection shaping amplifier may receive the input signal and output an indication that is used to allocate a first portion of the total amount of energy to the first event and a second portion of the total amount of energy to the second event.Type: GrantFiled: September 29, 2015Date of Patent: November 6, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Geng Fu, Peter Michael Edic, Brian David Yanoff, Jianjun Guo, Vladimir A. Lobastov, Yannan Jin
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Publication number: 20170086761Abstract: Some embodiments are associated with an input signal comprising a first and a second photon event incident on a photon-counting semiconductor detector. A relatively slow charge collection shaping amplifier may receive the input signal and output an indication of a total amount of energy associated with the superposition of the first and second events. A relatively fast charge collection shaping amplifier may receive the input signal and output an indication that is used to allocate a first portion of the total amount of energy to the first event and a second portion of the total amount of energy to the second event.Type: ApplicationFiled: September 29, 2015Publication date: March 30, 2017Inventors: Geng Fu, Peter Michael Edic, Brian David Yanoff, Jianjun Guo, Vladimir A. Lobastov, Yannan Jin
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Patent number: 9220469Abstract: A system includes an energy-discriminating, photon-counting X-ray detector, comprising a plurality of detector cells adapted to produce projection data in response to X-ray photons and to produce an electrical signal having a recorded count for the energy bins and a total energy intensity. The system also includes data processing circuitry adapted to receive the electrical signal, to generate a simulated count rate for each of the energy bins by using the total energy intensity, to determine a set of energy intensity dependent material decomposition vectors, and, for the measured projection data, to perform material decomposition.Type: GrantFiled: December 31, 2013Date of Patent: December 29, 2015Assignee: GENERAL ELECTRIC COMPANYInventors: Yannan Jin, Peter Michael Edic, Vladimir A. Lobastov, Hewei Gao, Geng Fu
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Publication number: 20150182176Abstract: A system includes an energy-discriminating, photon-counting X-ray detector, comprising a plurality of detector cells providing measurements corresponding to at least two energy bins and being adapted to produce projection data in response to X-ray photons that reach the X-ray detector and to produce an electrical signal having a recorded count for the energy bins and a total energy intensity.Type: ApplicationFiled: December 31, 2013Publication date: July 2, 2015Inventors: Yannan Jin, Peter Michael Edic, Vladimir A. Lobastov, Hewei Gao, Geng Fu
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Publication number: 20150092912Abstract: Systems and method for filtering emissions from scintillators are provided. One system includes a scintillator having a scintillator material portion formed from a base scintillator material. The scintillator also includes a photodetector and a filter portion, The filter portion includes a material blocking near-infrared (IR) emissions. The filter portion is disposed on a surface of one of the scintillator material portion or the photodetector, and wherein the scintillator material portion, the photodetector, and the filter portion are coupled together. The filter portion blocks the near-IR emissions from impinging on the photodetector.Type: ApplicationFiled: November 6, 2013Publication date: April 2, 2015Applicant: General Electric CompanyInventors: Haochuan Jiang, Anant Achyut Setlur, Robert Joseph Lyons, Kevin Alan David, James Edward Murphy, Vladimir Lobastov
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Apparatus and Method for Low Capacitance Packaging for Direct Conversion X-Ray or Gamma Ray Detector
Publication number: 20140348290Abstract: A direct-conversion X-ray detector includes one or more detector modules. The detector modules can include a substrate, one or more sensor tiles, and one or more photon-counting application specific integrated circuit (ASIC). The substrate has a dielectric constant of less than about 3.5 and is capable of lithographic conductor patterning with feature sizes of about 5 um or less. The one or more X-ray direct conversion sensor tiles have an array of one or more electrodes electrically coupled to a first surface of the substrate. The one or more ASICs are electrically coupled to the substrate and disposed laterally along the substrate with respect to the one or more direct conversion sensor tiles. Conductive lines are spaced along the substrate and are configured to electrically couple the one or more X-ray direct conversion sensor tiles to the one or more ASICs.Type: ApplicationFiled: May 23, 2013Publication date: November 27, 2014Applicant: General Electric CompanyInventors: Daniel David Harrison, James Rose, Abdelaziz Ikhlef, Vladimir Lobastov -
Patent number: 8824635Abstract: Detector modules for an imaging system and methods of manufacturing are provided. One detector module includes a substrate, a direct conversion sensor material coupled to the substrate and a flexible interconnect electrically coupled to the direct conversion sensor material and configured to provide readout of electrical signals generated by the direct conversion sensor material. The detector module also includes at least one illumination source for illuminating the direct conversion sensor material.Type: GrantFiled: October 27, 2011Date of Patent: September 2, 2014Assignee: General Electric CompanyInventors: John Eric Tkaczyk, Kevin Matthew Durocher, James Rose, Haochuan Jiang, Abdelaziz Ikhlef, Vladimir Lobastov, Daniel David Harrison
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Publication number: 20130161523Abstract: A radiation detector is provided employing a focus grid electrode. The focus grid electrode is biased relative to one or more anode electrodes. In this manner, movement of electrons to the anode electrodes may be enhanced, such as due to a higher electrical field strength in a conversion material and/or due to focusing of the resulting electrical field on the anode electrodes.Type: ApplicationFiled: December 23, 2011Publication date: June 27, 2013Applicant: General Electric CompanyInventors: John Eric Tkaczyk, Vladimir A. Lobastov, Yanfeng Du
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Publication number: 20130108019Abstract: Detector modules for an imaging system and methods of manufacturing are provided. One detector module includes a substrate, a direct conversion sensor material coupled to the substrate and a flexible interconnect electrically coupled to the direct conversion sensor material and configured to provide readout of electrical signals generated by the direct conversion sensor material. The detector module also includes at least one illumination source for illuminating the direct conversion sensor material.Type: ApplicationFiled: October 27, 2011Publication date: May 2, 2013Applicant: General Electric CompanyInventors: John Eric Tkaczyk, Kevin Matthew Durocher, James Rose, Haochuan Jiang, Abdelaziz Ikhlef, Vladimir Lobastov, Daniel David Harrison
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Publication number: 20130049151Abstract: Interconnect structures suitable for use in connecting anode-illuminated detector modules to downstream circuitry are disclosed. In certain embodiments, the interconnect structures are based on or include low atomic number or polymeric features and/or are formed at a density or thickness so as to minimize or reduce radiation attenuation by the interconnect structures.Type: ApplicationFiled: August 31, 2011Publication date: February 28, 2013Applicant: General Electric CompanyInventors: Vladimir A. Lobastov, Kevin Matthew Durocher, John Eric Tkaczyk, James Wilson Rose, Paul Alan McConnelee
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Publication number: 20120193545Abstract: A detector module for an imaging system, such as a CT system, and a method for fabricating the same are presented. The detector module includes an array of direct conversion sensors, the direct conversion sensors having a first side and a second side. The first side of the direct conversion sensors includes a segmented electrode side forming an array of pixels that receive radiation and convert the received radiation into corresponding charge signals, whereas the second side includes a common electrode side. The detector module also includes a readout electronic circuitry coupled to one or more of the direct conversion sensors where the readout electronic circuitry is configured to be shielded from the radiation. In addition, the detector module includes a bias voltage circuitry coupled to the one or more direct conversion sensors on the second side.Type: ApplicationFiled: January 31, 2011Publication date: August 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: John Eric Tkaczyk, James Wilson Rose, Vladimir A. Lobastov, Jeffrey Seymour Gordon
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Publication number: 20120080414Abstract: A method for laser patterning a sample is presented. The method includes coating at least one side of a substrate to form a sample, where coating the at least one side of the substrate forms an interface between the coating and the at least one side of the substrate. Further, the method includes configuring a scanning pattern for patterning the sample. In addition, the method includes determining settings for one or more laser beams of a laser based on the configured scanning pattern. Moreover, the method includes focusing the one or more laser beams of the laser at or near a surface of the substrate by selecting a focal point of the one or more laser beams near the surface of the substrate and setting a scribe depth near the surface of the substrate. The method also includes patterning the sample based on the configured scanning pattern using the one or more laser beams to generate one or more pixelated devices from the sample.Type: ApplicationFiled: September 30, 2010Publication date: April 5, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Wenwu Zhang, Christopher James Kapusta, Floribertus P. M. Heukensfeldt Jansen, Kristian William Andreini, Vladimir A. Lobastov, Kristen Ann Wangerin, Jun Cui
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Patent number: 7915583Abstract: An ultrafast system (and methods) for characterizing one or more samples. The system includes a stage assembly, which has a sample to be characterized. The system has a laser source that is capable of emitting an optical pulse of less than 1 ps in duration. The system has a cathode coupled to the laser source. In a specific embodiment, the cathode is capable of emitting an electron pulse less than 1 ps in duration. The system has an electron lens assembly adapted to focus the electron pulse onto the sample disposed on the stage. The system has a detector adapted to capture one or more electrons passing through the sample. The one or more electrons passing through the sample is representative of the structure of the sample. The detector provides a signal (e.g., data signal) associated with the one or more electrons passing through the sample that represents the structure of the sample. The system has a processor coupled to the detector.Type: GrantFiled: September 19, 2008Date of Patent: March 29, 2011Assignee: California Institute of TechnologyInventors: Ahmed Zewail, Vladimir Lobastov
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Publication number: 20090236521Abstract: An ultrafast system (and methods) for characterizing one or more samples. The system includes a stage assembly, which has a sample to be characterized. The system has a laser source that is capable of emitting an optical pulse of less than 1 ps in duration. The system has a cathode coupled to the laser source. In a specific embodiment, the cathode is capable of emitting an electron pulse less than 1 ps in duration. The system has an electron lens assembly adapted to focus the electron pulse onto the sample disposed on the stage. The system has a detector adapted to capture one or more electrons passing through the sample. The one or more electrons passing through the sample is representative of the structure of the sample. The detector provides a signal (e.g., data signal) associated with the one or more electrons passing through the sample that represents the structure of the sample. The system has a processor coupled to the detector.Type: ApplicationFiled: September 19, 2008Publication date: September 24, 2009Applicant: California Institute of TechnologyInventors: Ahmed Zewail, Vladimir Lobastov
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Patent number: 7442931Abstract: An ultrafast system (and methods) for characterizing one or more samples. The system includes a stage assembly, which has a sample to be characterized. The system has a laser source that is capable of emitting an optical pulse of less than 1 ps in duration. The system has a cathode coupled to the laser source. In a specific embodiment, the cathode is capable of emitting an electron pulse less than 1 ps in duration. The system has an electron lens assembly adapted to focus the electron pulse onto the sample disposed on the stage. The system has a detector adapted to capture one or more electrons passing through the sample. The one or more electrons passing through the sample is representative of the structure of the sample. The detector provides a signal (e.g., data signal) associated with the one or more electrons passing through the sample that represents the structure of the sample. The system has a processor coupled to the detector.Type: GrantFiled: December 19, 2006Date of Patent: October 28, 2008Assignee: California Institute of TechnologyInventors: Ahmed Zewail, Vladimir Lobastov
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Publication number: 20080017796Abstract: An ultrafast system (and methods) for characterizing one or more samples. The system includes a stage assembly, which has a sample to be characterized. The system has a laser source that is capable of emitting an optical pulse of less than 1 ps in duration. The system has a cathode coupled to the laser source. In a specific embodiment, the cathode is capable of emitting an electron pulse less than 1 ps in duration. The system has an electron lens assembly adapted to focus the electron pulse onto the sample disposed on the stage. The system has a detector adapted to capture one or more electrons passing through the sample. The one or more electrons passing through the sample is representative of the structure of the sample. The detector provides a signal (e.g., data signal) associated with the one or more electrons passing through the sample that represents the structure of the sample. The system has a processor coupled to the detector.Type: ApplicationFiled: December 19, 2006Publication date: January 24, 2008Applicant: California Institute of TechnologyInventors: Ahmed Zewail, Vladimir Lobastov
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Patent number: 7154091Abstract: An ultrafast system (and methods) for characterizing one or more samples. The system includes a stage assembly, which has a sample to be characterized. The system has a laser source that is capable of emitting an optical pulse of less than 1 ps in duration. The system has a cathode coupled to the laser source. In a specific embodiment, the cathode is capable of emitting an electron pulse less than 1 ps in duration. The system has an electron lens assembly adapted to focus the electron pulse onto the sample disposed on the stage. The system has a detector adapted to capture one or more electrons passing through the sample. The one or more electrons passing through the sample is representative of the structure of the sample. The detector provides a signal (e.g., data signal) associated with the one or more electrons passing through the sample that represents the structure of the sample. The system has a processor coupled to the detector.Type: GrantFiled: April 1, 2005Date of Patent: December 26, 2006Assignee: California Institute of TechnologyInventors: Ahmed Zewail, Vladimir Lobastov
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Publication number: 20050253069Abstract: An ultrafast system (and methods) for characterizing one or more samples. The system includes a stage assembly, which has a sample to be characterized. The system has a laser source that is capable of emitting an optical pulse of less than 1 ps in duration. The system has a cathode coupled to the laser source. In a specific embodiment, the cathode is capable of emitting an electron pulse less than 1 ps in duration. The system has an electron lens assembly adapted to focus the electron pulse onto the sample disposed on the stage. The system has a detector adapted to capture one or more electrons passing through the sample. The one or more electrons passing through the sample is representative of the structure of the sample. The detector provides a signal (e.g., data signal) associated with the one or more electrons passing through the sample that represents the structure of the sample. The system has a processor coupled to the detector.Type: ApplicationFiled: April 1, 2005Publication date: November 17, 2005Applicant: California Institute of TechnologyInventors: Ahmed Zewail, Vladimir Lobastov