General Electric Company

Ge Precision Healthcare LLC

Ge Medical Systems Global Technology Company, LLC

General Electric Corporation Gmbh

Uwe Wiedmann

Vasile Bogdan Neculaes

Antonio Caiafa

Sergio Lemaitre

John Scott Price

Brian David Yanoff

Biju Jacob

Andrew Thomas Cross

Dominique Poincloux

Bruno Kristiaan Bernard De Man

Carey Shawn Rogers

Mark Alan Frontera

Yannan Jin

Jean-Francois Larroux

Peter Michael Edic

Marshall Gordon Jones

Joseph Darryl Michael

Jiahua Fan

Fulton Jose Lopez

Philippe Ernest

Xue Rui

Ye Bai

Xiaoye Wu

Daniel David Harrison

Jean-Baptiste Thibault

Jed Douglas Pack

Jianjun Guo

Yong Liang

Rowland F Saunders

Floribertus P M Heukensfeldt Jansen

James Walter LeBlanc

Chad Allan Smith

Vance Scott Robinson

Naveen Stephan Chandra

Yun Zou

Zhye Yin

Ross Christopher Stalter

Michael James Rishel

Denis Perrillat-Amede

David Wagner

Steve Buresh

Rui Xu

Jayakrishnan Unnikrishnan

Paavana Sainath

Michael John Utschig

Scott Stephen Zelakiewicz

Xi Zhang

Thomas John Myers

Vivek Walimbe

Nidhishri Tapadia

Ming Yan

Charles Hugh Shaughnessy

Ryosuke Fujimoto

Adam Budde

Ryan James Lemminger

Georges William Baptiste

Munish Vishwas Inamdar

Eric Biehr

Julien Bouhraoua

Priti Madhav

Aurelien Gadenne

Paul Francis Fitzgerald

Floribertus Pm Heukensfeldt Jansen

Kiran Panchal

Vijay Subramanian

Patrick Chrétien

Yangyang Yao

Harsha Aeron

Karim Choukri

Bulent Alpay

Shubhodeep Goswami

Charles Alexander Szymanski

Michael J Utschig

Steven James Huff

Emmanuel Lafite

Stephen Lorenco Araujo

Yan Jiang

George William Baptiste

Denis Perrillat-Amee

Phillipe Ernest

Jean-François Larroux

Aurélien Gadenne

Rowland Frederick Saunders

Various methods and systems are provided for an x-ray imaging system. In one example, a method for decelerating a rotor of an x-ray tube of an imaging system includes controlling and/or monitoring a speed and position of the rotor, passing the rotor through a first position where a force exerted on the rotor, is less than Earth's gravitational pull, the force due to a combination of gravity and radial acceleration, and initiating a predefined deceleration profile to decelerate the rotor to a halt when the x-ray tube passes through the first position.

Methods for x-ray tube rotors with speed and/or position control

Methods and systems are provided for increasing a quality of computed tomography (CT) images generated by a CT system by altering a shape of a focal spot of an X-ray emitter of the CT system. In one embodiment, a method comprises controlling the CT system to focus a beam of electrons generated by a cathode of the CT system at a plurality of focal spots on a surface of an target of the CT system; generating a composite focal spot from the plurality of focal spots; and obtaining projection data of the CT system with the composite focal spot. For example, two focal spots may be combined to generate the composite focal spot. By combining focal spots to generate composite focal spots, a quality of a resulting view produced by the CT system may be increased.

Systems and methods for computed tomography

A phase-contrast imaging detector includes a plurality of pixels. Each pixel includes a detection material that generates a measurable parameter in response to X-ray photons. Each pixel also includes a plurality of sub-pixel resolution readout structures. The sub-pixel resolution readout structures are in an alternating pattern with a spacing therebetween that is larger than a frequency of a phase-contrast interference pattern but small enough to enable charge sharing between adjacent sub-pixel resolution readout structures when an X-ray photon hits between the adjacent sub-pixel resolution readout structures. The phase-contrast imaging detector also includes readout circuitry configured to read out signals from the plurality of sub-pixel readout structures. The plurality of sub-pixel resolution readout structures includes two or more electrodes having alternating arms that form an interleaved comb structure.

High-resolution detector having a reduced number of pixels

Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.

Biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same

A system for melting, sintering, or heat treating a material is provided. The system includes a cathode, an anode, and a focus coil assembly having a quadrupole magnet. The quadrupole magnet includes four poles and a yoke. The four poles are spaced apart and surround a beam cavity. Each of the four poles includes a pole face proximate the beam cavity and an end opposite the pole face. The first and third poles are aligned along an x-axis and configured to have a first magnetic polarity at their respective pole faces and a second magnetic polarity opposite the first magnetic polarity at their respective ends. The second and fourth poles are aligned along a y-axis and configured to have the second magnetic polarity at their respective pole faces and the first magnetic polarity at their respective ends. The yoke surrounds the poles and is coupled to the poles.

Systems and methods for electron beam focusing in electron beam additive manufacturing

The present approach relates to generating one or both of a failure prediction indication for an X-ray tube or a remaining useful life estimate for the X-ray tube. In one implementation, a complexity of a regression model is selected based on the operating points utilized by an imaging system for the X-ray tube, where the regression model estimates coefficients utilized by a static tube model in estimating health (e.g., thickness) of the electron emitter of the X-ray tube, which in turn may be used in predicting remaining useful life of an electron emitter of the X-ray tube. In another implementation, replacement of an X-ray tube or a component of a filament drive circuit coupled to the X-ray tube may be detected.

Methods and systems for monitoring events related to X-ray tubes

A computer-implemented method for performing dynamic phase correction includes obtaining, at a processor, phase-contrast image data acquired by a photon-counting detector, wherein the photon-counting detector includes a plurality of subareas and each subarea includes a plurality of pixels configured to generate a measurable parameter in response to X-ray photons. The method also includes detecting, via the processor, motion within the phase-contrast image data within a sampling window for multiple subareas of the plurality of subareas. The method further includes estimating, via the processor, motion-correcting parameters for the detected motion within at least one subarea of the multiple subareas. The method still further includes generating, via the processor, a motion-corrected image based on the estimated motion-correcting parameters.

System and method for dynamic phase correction for x-ray phase-contrast imaging

A method for forming a multi-layered, stacked grid structure includes aligning a first grid structure with a second grid structure, wherein both the first grid structure and the second grid structure each include a substrate in which a plurality of trenches are formed and a cured carrier fluid disposed within the plurality of trenches, and wherein a plurality of nano-particles are suspended within the cured carrier fluid. The method also includes, upon aligning the first grid structure and the second grid structure so that their respective plurality of trenches are aligned in the same orientation, joining the first grid structure and the second grid structure together to form the multi-layered, stacked grid structure.

Aligned and stacked high-aspect ratio metallized structures

Biased cathode assembly of an x-ray tube with improved thermal management and a method of manufacturing same

A system comprising a processor configured to obtain a feature set for a component and generate random trees based on the feature set and a training data set, wherein each of the random trees can include at least one predictive value representing a probability of a feature of the random trees indicating a failure of the component within a period of time. The processor can also select a subset of the random trees based on the at least one predictive value, determine a likelihood of the failure of the component based on operational data for one or more devices and the subset of the random trees, and transmit an explanation to a remote device for the likelihood of failure of the component by indicating the feature selected from the subset of the random trees.

Systems and methods for repairing a component of a device

The present disclosure relates to fabrication and use of a phase-contrast imaging detector that includes sub-pixel resolution electrodes or photodiodes spaced to correspond to a phase-contrast interference pattern. A system using such a detector may employ fewer gratings than are typically used in a phase-contrast imaging system, with certain functionality typically provided by a detector-side analyzer grating being performed by sub-pixel resolution structures (e.g., electrodes or photodiodes) of the detector. Measurements acquired using the detector may be used to determine offset, amplitude, and phase of a phase-contrast interference pattern without multiple acquisitions at different phase steps.

X-ray phase contrast detector

Growing community of inventors

Clifton Park, NY, United States of America

Uwe Wiedmann