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Robert Senzig
David M Hoffman, James Walter LeBlanc, John Eric Tkaczyk, Robert F Senzig, Yanfeng Du: Direct conversion energy discriminating CT detector with over-ranging correction. General Electric Company, Ziolkowski Patent Solutions Group SC, September 1, 2009: US07583790 (4 worldwide citation)

A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate p ...


2
Forrest Frank Hopkins, Peter Michael Edic, Samit Kumar Basu, Bruno De Man, James Walter Leblanc, Xiaoye Wu, Deborah Joy Walter, William Robert Ross, Colin Richard Wilson, Ricardo Scott Avila, Robert August Kaucic Jr: System and method for detecting an object. General Electric Company, Fletcher Yoder, February 17, 2009: US07492855 (37 worldwide citation)

A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem utilizing a stationary radiation source and detector, a reconstruction subsystem, a computer-aided detection (CAD) subsystem, and a 2D/3D visualization subsystem. T ...


3
Alok Mani Srivastava, Steven Jude Duclos, Qun Deng, James Walter Leblanc, Tie Bond Gao, Jian Min Wang, Lucas Lemar Clarke: Scintillator compositions, and related processes and articles of manufacture. General Electric Company, Francis T Coppa, Patrick K Patnode, August 1, 2006: US07084403 (30 worldwide citation)

Scintillator materials based on certain types of halide-lanthanide matrix materials are described. In one embodiment, the matrix material contains a mixture of lanthanide halides, i.e., a solid solution of at least two of the halides, such as lanthanum chloride and lanthanum bromide. In another embo ...


4
David Allen Langan, John Eric Tkaczyk, James Walter LeBlanc, Colin R Wilson, Xiaoye Wu, Dan Xu, Thomas Matthew Benson, Jed Douglas Pack: System and method of fast kVp switching for dual energy CT. General Electric Company, Scott J Asmus, November 2, 2010: US07826587 (11 worldwide citation)

A CT system includes a gantry, an x-ray source, a generator configured to energize the x-ray source to a first kVp and to a second kVp, a detector, and a controller. The controller is configured energize the x-ray source to the first kVp for a first time period, subsequently energize the x-ray sourc ...


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Oliver Richard Astley, John Eric Tkaczyk, Naresh Kesavan Rao, James Walter LeBlanc, Wen Li, Yanfeng Du: Adaptive data acquisition for an imaging system. General Electric Company, Jason K Klindtworth, Curtis B Brueske, June 17, 2008: US07388534 (6 worldwide citation)

An adaptive data acquisition circuit (26) includes an amplifier (14) for amplifying electrical pulses generated by a detector (12) responsive to energy incident at the detector. The adaptive data acquisition circuit also includes a counting circuit (28) for counting amplified electrical pulses gener ...


7
Xiaoye Wu, David Allen Langan, James Walter LeBlanc: System and method to obtain noise mitigated monochromatic representation for varying energy level. General Electric Company, Fletcher Yoder P C, November 8, 2011: US08055039 (6 worldwide citation)

In dual energy CT, through basis material decomposition (BMD), a pair of density images can be reconstructed. The noises in this image pair are negatively correlated due to the BMD process. A technique is presented for obtaining the monochromatic images at desired energy levels with reduced correlat ...


8
Kent Charles Burr, James Walter LeBlanc, Adrian Ivan, Donald Earl Castleberry: Systems and methods to localize optical emission in radiation detectors. General Electric Company, Patrick K Patnode, June 30, 2009: US07554089 (6 worldwide citation)

A method for localizing optical emission is disclosed. The method involves identifying a first readout channel of a first pixellated photodetector array based on an impact of a first photon on the first pixellated photodetector array. The first photon is emitted by a scintillator unit of a scintilla ...


9
Peter Michael Edic, Bruno Kristiaan Bernard De Man, Mark Ernest Vermilyea, Christopher David Unger, John Eric Tkaczyk, James Walter LeBlanc, Samit Kumar Basu, William Robert Ross, Jonathan David Short, Scott Stephen Zelakiewicz: Scatter control system and method for computed tomography. General Electric Company, Jason K Klindtworth, Curtis B Brueske, April 29, 2008: US07366279 (6 worldwide citation)

Various configurations for scatter reduction and control are provided for CT imaging. These configurations include an imaging system having a stationary detector extending generally around a portion of an imaging volume and a distributed X-ray source placed proximal to the stationary detector for ra ...


10
Xiaoye Wu, James Walter Leblanc, Paavana Sainath: Method for calibrating a dual -spectral computed tomography (CT) system. General Electric Company, Jason K Klindtworth, September 21, 2010: US07801264 (5 worldwide citation)

A method for calibrating and reconstructing material density images in a dual-spectral computed tomography (CT) system 100 is disclosed. An X-ray source in the CT system 100 emits a first X-ray spectrum and a second X-ray spectrum towards an object. The method includes computing calibration coeffici ...