公开(公告)号：US20180356543A1

公开(公告)日：2018-12-13

申请号：US15621501

申请日：2017-06-13

Applicant: General Electric Company

Inventor： Arie Shahar ,  Moshe Cohen-Erner

IPC: G01T1/36

CPC classification number: G01T1/36 ,  G01T1/247 ,  G01T1/2928

Abstract: The systems and methods described herein measure a collected energy signal from a first pixel of a radiation pixelated detector during at least one event, and measure adjacent energy signals from at least two pixels adjacent to the first pixel of the radiation pixelated detector during the at least one event. The systems and methods generate a first spectrum based on the collected energy signal of the at least one event within an energy window. The energy window is a predetermined energy range for medical imaging. The systems and methods determine a delta charge based on the collected energy signal and the adjacent energy signals generated during the at least one event, generate a second spectrum based on the delta charge of the at least one event outside the energy window, and stretch the second spectrum to combine with the first spectrum to form a corrected energy spectrum.

公开(公告)号：US10247834B1

公开(公告)日：2019-04-02

申请号：US15998449

申请日：2018-08-15

Applicant: General Electric Company

Inventor： Arie Shahar ,  Yaron Glazer ,  Jean-Paul Bouhnik ,  Avishai Ofan ,  Moshe Cohen-Erner

IPC: H01L27/146 ,  G01T1/24 ,  G01T7/00

Abstract: A radiation detector assembly is provided that includes a semiconductor detector, a collimator, plural pixelated anodes, and at least one processor. The collimator has openings defining pixels. Each pixelated anode is configured to generate a primary signal responsive to reception of a photon and to generate at least one secondary signal responsive to reception of a photon by at least one surrounding anode. Each pixelated anode includes a first portion and a second portion located in different openings of the collimator. The at least one processor is operably coupled to the pixelated anodes, and configured to acquire a primary signal from one of the pixelated anodes; acquire at least one secondary signal from at least one neighboring pixelated anode; and determine a location for the reception of the photon using the primary signal and the at least one secondary signal.

公开(公告)号：US10156646B1

公开(公告)日：2018-12-18

申请号：US15621501

申请日：2017-06-13

Applicant: General Electric Company

Inventor： Arie Shahar ,  Moshe Cohen-Erner

IPC: G01T1/36

Abstract: The systems and methods described herein measure a collected energy signal from a first pixel of a radiation pixelated detector during at least one event, and measure adjacent energy signals from at least two pixels adjacent to the first pixel of the radiation pixelated detector during the at least one event. The systems and methods generate a first spectrum based on the collected energy signal of the at least one event within an energy window. The energy window is a predetermined energy range for medical imaging. The systems and methods determine a delta charge based on the collected energy signal and the adjacent energy signals generated during the at least one event, generate a second spectrum based on the delta charge of the at least one event outside the energy window, and stretch the second spectrum to combine with the first spectrum to form a corrected energy spectrum.

公开(公告)号：US20170090047A1

公开(公告)日：2017-03-30

申请号：US14871033

申请日：2015-09-30

Applicant: General Electric Company

Inventor： Arie Shahar ,  Avishai Ofan ,  Jeffrey Michael Levy ,  Moshe Cohen-Erner ,  Yaron Glazer

IPC: G01T1/24 ,  G21K1/02

CPC classification number: G01T1/247 ,  G01T1/17 ,  H01L27/146 ,  H01L27/14605 ,  H04N5/347

Abstract: A radiation detector processing assembly is provided including at least one application specific integrated circuit (ASIC). The radiation detector processing assembly includes plural input channels, a common readout, and a readout channel. Each input channel is configured to receive an input corresponding to a detection event from a pixel of a pixelated detector. The common readout is operably coupled to the plural input channels, and is configured to receive a corresponding output signal from each input channel. Each corresponding output signal has a unique address identifying the corresponding input channel. The readout channel is configured to receive a corresponding readout output from the common readout. The readout output includes output signals from a corresponding group of input channels.

公开(公告)号：US10481285B1

公开(公告)日：2019-11-19

申请号：US16102228

申请日：2018-08-13

Applicant: General Electric Company

Inventor： Arie Shahar ,  Yaron Glazer ,  Moshe Cohen-Erner ,  Avishai Ofan

IPC: G01T7/00 ,  G01T1/24

Abstract: A detector assembly is provided that includes a semiconductor detector, plural pixelated anodes, and at least one processor. The plural pixelated anodes are disposed on a surface of the semiconductor detector. Each pixelated anode is configured to generate a primary signal responsive to reception of a photon and to generate at least one secondary signal responsive to an induced charge caused by reception of a photon by at least one surrounding anode. The at least one processor is operably coupled to the pixelated anodes and is configured to acquire a primary signal from one of the anodes responsive to reception of a photon; acquire at least one secondary signal from at least one neighboring pixel; and determine a depth of interaction in the semiconductor detector for the reception of the photon by the one of the anodes using the at least one secondary signal.

公开(公告)号：US20190204459A1

公开(公告)日：2019-07-04

申请号：US15860325

申请日：2018-01-02

Applicant: General Electric Company

Inventor： Arie Shahar ,  Jean-Paul Bouhnik ,  Moshe Cohen-Erner

IPC: G01T1/24

CPC classification number: G01T1/247 ,  G01T1/241 ,  G01T1/2928

Abstract: The systems and methods receive signals from pixelated anodes for at least one event, and pass the signals from the pixelated anodes through corresponding channel pairs, attenuate the signal from a plurality of select anodes at the first and second shaper circuits coupled to the plurality of the select anodes to form a candidate energy signals and an authentication energy signals, respectively, compare a ratio to identify whether the select anode is a collected energy signal or a non-collected energy signal, repeat the attenuating and comparing operations for a plurality of select anodes have one or more collecting anode and a plurality of peripheral anodes, subdivide the collecting anode having the collected energy signal into a plurality of sub-pixels, and identify a location of the at least one event relative to the plurality of sub-pixels based on non-collected energy signals from the plurality of peripheral anodes.

公开(公告)号：US10324202B1

公开(公告)日：2019-06-18

申请号：US15860325

申请日：2018-01-02

Applicant: General Electric Company

Inventor： Arie Shahar ,  Jean-Paul Bouhnik ,  Moshe Cohen-Erner

IPC: G01T1/24

CPC classification number: G01T1/247 ,  G01T1/241 ,  G01T1/2928

Abstract: The systems and methods receive signals from pixelated anodes for at least one event, and pass the signals from the pixelated anodes through corresponding channel pairs, attenuate the signal from a plurality of select anodes at the first and second shaper circuits coupled to the plurality of the select anodes to form a candidate energy signals and an authentication energy signals, respectively, compare a ratio to identify whether the select anode is a collected energy signal or a non-collected energy signal, repeat the attenuating and comparing operations for a plurality of select anodes have one or more collecting anode and a plurality of peripheral anodes, subdivide the collecting anode having the collected energy signal into a plurality of sub-pixels, and identify a location of the at least one event relative to the plurality of sub-pixels based on non-collected energy signals from the plurality of peripheral anodes.

公开(公告)号：US09891328B2

公开(公告)日：2018-02-13

申请号：US14871033

申请日：2015-09-30

Applicant: General Electric Company

Inventor： Arie Shahar ,  Avishai Ofan ,  Jeffrey Michael Levy ,  Moshe Cohen-Erner ,  Yaron Glazer

IPC: G01T1/24 ,  H04N5/347 ,  H01L27/146

CPC classification number: G01T1/247 ,  G01T1/17 ,  H01L27/146 ,  H01L27/14605 ,  H04N5/347

Abstract: A radiation detector processing assembly is provided including at least one application specific integrated circuit (ASIC). The radiation detector processing assembly includes plural input channels, a common readout, and a readout channel. Each input channel is configured to receive an input corresponding to a detection event from a pixel of a pixelated detector. The common readout is operably coupled to the plural input channels, and is configured to receive a corresponding output signal from each input channel. Each corresponding output signal has a unique address identifying the corresponding input channel. The readout channel is configured to receive a corresponding readout output from the common readout. The readout output includes output signals from a corresponding group of input channels.